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| * regset: Return -EFAULT, not -EIO, on host-side memory faultH. Peter Anvin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/949905 There is only one error code to return for a bad user-space buffer pointer passed to a system call in the same address space as the system call is executed, and that is EFAULT. Furthermore, the low-level access routines, which catch most of the faults, return EFAULT already. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@hack.frob.com> Cc: <stable@vger.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit 5189fa19a4b2b4c3bec37c3a019d446148827717) CVE-2012-1097 Acked-by: Seth Forshee <seth.forshee@canonical.com> Acked-by: Colin King <colin.king@canonical.com> Signed-off-by: Andy Whitcroft <andy.whitcroft@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * regset: Prevent null pointer reference on readonly regsetsH. Peter Anvin2012-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/949905 The regset common infrastructure assumed that regsets would always have .get and .set methods, but not necessarily .active methods. Unfortunately people have since written regsets without .set methods. Rather than putting in stub functions everywhere, handle regsets with null .get or .set methods explicitly. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@hack.frob.com> Cc: <stable@vger.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit c8e252586f8d5de906385d8cf6385fee289a825e) CVE-2012-1097 Acked-by: Seth Forshee <seth.forshee@canonical.com> Acked-by: Colin King <colin.king@canonical.com> Signed-off-by: Andy Whitcroft <andy.whitcroft@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * UBUNTU: Bump ABILuis Henriques2012-03-26
| | | | | | | | | | Ignore: yes Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
| * UBUNTU: Start new releaseLuis Henriques2012-03-26
| | | | | | | | | | Ignore: yes Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
| * UBUNTU: Ubuntu-3.0.0-17.30Luis Henriques2012-03-08
| | | | | | | | Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
| * eCryptfs: Copy up lower inode attrs after setting lower xattrTyler Hicks2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/926292 After passing through a ->setxattr() call, eCryptfs needs to copy the inode attributes from the lower inode to the eCryptfs inode, as they may have changed in the lower filesystem's ->setxattr() path. One example is if an extended attribute containing a POSIX Access Control List is being set. The new ACL may cause the lower filesystem to modify the mode of the lower inode and the eCryptfs inode would need to be updated to reflect the new mode. https://launchpad.net/bugs/926292 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Sebastien Bacher <seb128@ubuntu.com> Cc: John Johansen <john.johansen@canonical.com> Cc: <stable@vger.kernel.org> (cherry picked from commit 545d680938be1e86a6c5250701ce9abaf360c495) Acked-by: Brad Figg <brad.figg@canonical.com> Signed-off-by: Colin King <colin.king@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * UBUNTU: [Config] restore build-% shortcutAndy Whitcroft2012-03-08
| | | | | | | | Signed-off-by: Andy Whitcroft <apw@canonical.com>
| * bsg: fix sysfs link remove warningStanislaw Gruszka2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/946928 We create "bsg" link if q->kobj.sd is not NULL, so remove it only when the same condition is true. Fixes: WARNING: at fs/sysfs/inode.c:323 sysfs_hash_and_remove+0x2b/0x77() sysfs: can not remove 'bsg', no directory Call Trace: [<c0429683>] warn_slowpath_common+0x6a/0x7f [<c0537a68>] ? sysfs_hash_and_remove+0x2b/0x77 [<c042970b>] warn_slowpath_fmt+0x2b/0x2f [<c0537a68>] sysfs_hash_and_remove+0x2b/0x77 [<c053969a>] sysfs_remove_link+0x20/0x23 [<c05d88f1>] bsg_unregister_queue+0x40/0x6d [<c0692263>] __scsi_remove_device+0x31/0x9d [<c069149f>] scsi_forget_host+0x41/0x52 [<c0689fa9>] scsi_remove_host+0x71/0xe0 [<f7de5945>] quiesce_and_remove_host+0x51/0x83 [usb_storage] [<f7de5a1e>] usb_stor_disconnect+0x18/0x22 [usb_storage] [<c06c29de>] usb_unbind_interface+0x4e/0x109 [<c067a80f>] __device_release_driver+0x6b/0xa6 [<c067a861>] device_release_driver+0x17/0x22 [<c067a46a>] bus_remove_device+0xd6/0xe6 [<c06785e2>] device_del+0xf2/0x137 [<c06c101f>] usb_disable_device+0x94/0x1a0 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> (cherry picked from commit 37b40adf2d1b4a5e51323be73ccf8ddcf3f15dd3) Acked-by: Brad Figg <brad.figg@canonical.com> Acked-by: Colin King <colin.king@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * UBUNTU: (config) Fix virtual flavour inclusion of xen-kbdfrontStefan Bader2012-03-08
| | | | | | | | | | | | | | | | | | | | | | Seems a typo went in without noticing. The patch for that module is drivers/input/misc. BugLink: http://bugs.launchpad.net/bugs/944582 Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Acked-by: Brad Figg <brad.figg@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * ACPI / PM: Do not save/restore NVS on Asus K54C/K54HRKeng-Yu Lin2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The models do not resume correctly without acpi_sleep=nonvs. Signed-off-by: Keng-Yu Lin <kengyu@canonical.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> (backported from commit 5a50a7c32d630d6cdb13d69afabb0cc81b2f379c) BugLink: http://bugs.launchpad.net/bugs/898503 Signed-off-by: Keng-Yu Lin <kengyu@canonical.com> Acked-by: Stefan Bader <stefan.bader@canonical.com> Acked-by: Colin King <colin.king@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * KVM: Device assignment permission checksAlex Williamson2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only allow KVM device assignment to attach to devices which: - Are not bridges - Have BAR resources (assume others are special devices) - The user has permissions to use Assigning a bridge is a configuration error, it's not supported, and typically doesn't result in the behavior the user is expecting anyway. Devices without BAR resources are typically chipset components that also don't have host drivers. We don't want users to hold such devices captive or cause system problems by fencing them off into an iommu domain. We determine "permission to use" by testing whether the user has access to the PCI sysfs resource files. By default a normal user will not have access to these files, so it provides a good indication that an administration agent has granted the user access to the device. [Yang Bai: add missing #include] [avi: fix comment style] Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Yang Bai <hamo.by@gmail.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> (backported from commit 3d27e23b17010c668db311140b17bbbb70c78fb9) CVE-2011-4347 BugLink: http://bugs.launchpad.net/bugs/897812 Signed-off-by: Andy Whitcroft <apw@canonical.com> Acked-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * Linux 3.0.22Greg Kroah-Hartman2012-03-08
| | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915
| * crypto: sha512 - use standard ror64()Alexey Dobriyan2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit f2ea0f5f04c97b48c88edccba52b0682fbe45087 upstream. Use standard ror64() instead of hand-written. There is no standard ror64, so create it. The difference is shift value being "unsigned int" instead of uint64_t (for which there is no reason). gcc starts to emit native ROR instructions which it doesn't do for some reason currently. This should make the code faster. Patch survives in-tree crypto test and ping flood with hmac(sha512) on. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * slub: fix a possible memleak in __slab_alloc()Eric Dumazet2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 73736e0387ba0e6d2b703407b4d26168d31516a7 upstream. Zhihua Che reported a possible memleak in slub allocator on CONFIG_PREEMPT=y builds. It is possible current thread migrates right before disabling irqs in __slab_alloc(). We must check again c->freelist, and perform a normal allocation instead of scratching c->freelist. Many thanks to Zhihua Che for spotting this bug, introduced in 2.6.39 V2: Its also possible an IRQ freed one (or several) object(s) and populated c->freelist, so its not a CONFIG_PREEMPT only problem. Reported-by: Zhihua Che <zhihua.che@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callbackStefano Stabellini2012-03-08
| | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 207d543f472c1ac9552df79838dc807cbcaa9740 upstream. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * ALSA: intel8x0: Fix default inaudible sound on Gateway M520Daniel T Chen2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 27c3afe6e1cf129faac90405121203962da08ff4 upstream. BugLink: https://bugs.launchpad.net/bugs/930842 The reporter states that audio is inaudible by default without muting 'External Amplifier'. Add a quirk to handle his SSID so that changing the control is not necessary. Reported-and-tested-by: Benjamin Carlson <elderbubba0810@gmail.com> Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * crypto: sha512 - Avoid stack bloat on i386Herbert Xu2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 3a92d687c8015860a19213e3c102cad6b722f83c upstream. Unfortunately in reducing W from 80 to 16 we ended up unrolling the loop twice. As gcc has issues dealing with 64-bit ops on i386 this means that we end up using even more stack space (>1K). This patch solves the W reduction by moving LOAD_OP/BLEND_OP into the loop itself, thus avoiding the need to duplicate it. While the stack space still isn't great (>0.5K) it is at least in the same ball park as the amount of stack used for our C sha1 implementation. Note that this patch basically reverts to the original code so the diff looks bigger than it really is. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * crypto: sha512 - Use binary and instead of modulusHerbert Xu2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 58d7d18b5268febb8b1391c6dffc8e2aaa751fcd upstream. The previous patch used the modulus operator over a power of 2 unnecessarily which may produce suboptimal binary code. This patch changes changes them to binary ands instead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * hwmon: (f75375s) Fix automatic pwm mode setting for F75373 & F75375Nikolaus Schulz2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 09e87e5c4f9af656af2a8a3afc03487c5d9287c3 upstream. In order to enable temperature mode aka automatic mode for the F75373 and F75375 chips, the two FANx_MODE bits in the fan configuration register need be set to 01, not 10. Signed-off-by: Nikolaus Schulz <mail@microschulz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * gpio/pca953x: Fix warning of enabled interrupts in handlerDavid Jander2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 6dd599f8af0166805951f4421a78ba716d78321a upstream. When using nested threaded irqs, use handle_nested_irq(). This function does not call the chip handler, so no handler is set. Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Yong Zhang <yong.zhang0@gmail.com> Cc: Manfred Gruber <m.gruber@unverspurt.at> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * writeback: fix dereferencing NULL bdi->dev on trace_writeback_queueWu Fengguang2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 977b7e3a52a7421ad33a393a38ece59f3d41c2fa upstream. When a SD card is hot removed without umount, del_gendisk() will call bdi_unregister() without destroying/freeing it. This leaves the bdi in the bdi->dev = NULL, bdi->wb.task = NULL, bdi->bdi_list removed state. When sync(2) gets the bdi before bdi_unregister() and calls bdi_queue_work() after the unregister, trace_writeback_queue will be dereferencing the NULL bdi->dev. Fix it with a simple test for NULL. LKML-reference: http://lkml.org/lkml/2012/1/18/346 Reported-by: Rabin Vincent <rabin@rab.in> Tested-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * mac80211: timeout a single frame in the rx reorder bufferEliad Peller2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 07ae2dfcf4f7143ce191c6436da1c33f179af0d6 upstream. The current code checks for stored_mpdu_num > 1, causing the reorder_timer to be triggered indefinitely, but the frame is never timed-out (until the next packet is received) Signed-off-by: Eliad Peller <eliad@wizery.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * relay: prevent integer overflow in relay_open()Dan Carpenter2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit f6302f1bcd75a042df69866d98b8d775a668f8f1 upstream. "subbuf_size" and "n_subbufs" come from the user and they need to be capped to prevent an integer overflow. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * lib: proportion: lower PROP_MAX_SHIFT to 32 on 64-bit kernelWu Fengguang2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 3310225dfc71a35a2cc9340c15c0e08b14b3c754 upstream. PROP_MAX_SHIFT should be set to <=32 on 64-bit box. This fixes two bugs in the below lines of bdi_dirty_limit(): bdi_dirty *= numerator; do_div(bdi_dirty, denominator); 1) divide error: do_div() only uses the lower 32 bit of the denominator, which may trimmed to be 0 when PROP_MAX_SHIFT > 32. 2) overflow: (bdi_dirty * numerator) could easily overflow if numerator used up to 48 bits, leaving only 16 bits to bdi_dirty Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Reported-by: Ilya Tumaykin <librarian_rus@yahoo.com> Tested-by: Ilya Tumaykin <librarian_rus@yahoo.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * hwmon: (f75375s) Fix bit shifting in f75375_write16Nikolaus Schulz2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit eb2f255b2d360df3f500042a2258dcf2fcbe89a2 upstream. In order to extract the high byte of the 16-bit word, shift the word to the right, not to the left. Signed-off-by: Nikolaus Schulz <mail@microschulz.de> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * drm/i915: no lvds quirk for AOpen MP45Daniel Vetter2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit e57b6886f555ab57f40a01713304e2053efe51ec upstream. According to a bug report, it doesn't have one. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44263 Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * perf tools: Fix perf stack to non executable on x86_64Jiri Olsa2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit 7a0153ee15575a4d07b5da8c96b79e0b0fd41a12 upstream. By adding following objects: bench/mem-memcpy-x86-64-asm.o the x86_64 perf binary ended up with executable stack. The reason was that above object are assembler sourced and is missing the GNU-stack note section. In such case the linker assumes that the final binary should not be restricted at all and mark the stack as RWX. Adding section ".note.GNU-stack" definition to mentioned object, with all flags disabled, thus omiting this object from linker stack flags decision. Problem introduced in: $ git describe ea7872b v2.6.37-rc2-19-gea7872b Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=783570 Reported-by: Clark Williams <williams@redhat.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1328100848-5630-1-git-send-email-jolsa@redhat.com Signed-off-by: Jiri Olsa <jolsa@redhat.com> [ committer note: Backported fix to perf/urgent (3.3-rc2+) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * perf evsel: Fix an issue where perf report fails to show the proper percentageNaveen N. Rao2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/937915 commit a4a03fc7ef89020baca4f19174e6a43767c6d78a upstream. This patch fixes an issue where perf report shows nan% for certain perf.data files. The below is from a report for a do_fork probe: -nan% sshd [kernel.kallsyms] [k] do_fork -nan% packagekitd [kernel.kallsyms] [k] do_fork -nan% dbus-daemon [kernel.kallsyms] [k] do_fork -nan% bash [kernel.kallsyms] [k] do_fork A git bisect shows commit f3bda2c as the cause. However, looking back through the git history, I saw commit 640c03c which seems to have removed the required initialization for perf_sample->period. The problem only started showing after commit f3bda2c. The below patch re-introduces the initialization and it fixes the problem for me. With the below patch, for the same perf.data: 73.08% bash [kernel.kallsyms] [k] do_fork 8.97% 11-dhclient [kernel.kallsyms] [k] do_fork 6.41% sshd [kernel.kallsyms] [k] do_fork 3.85% 20-chrony [kernel.kallsyms] [k] do_fork 2.56% sendmail [kernel.kallsyms] [k] do_fork This patch applies over current linux-tip commit 9949284. Problem introduced in: $ git describe 640c03c v2.6.37-rc3-83-g640c03c Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Robert Richter <robert.richter@amd.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20120203170113.5190.25558.stgit@localhost6.localdomain6 Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Brad Figg <brad.figg@canonical.com>
| * drm/radeon/kms: fix TRAVIS panel setupJesse Sung2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/825777 Different versions of the DP to LVDS bridge chip need different panel mode settings depending on the chip version used. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=41569 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> (cherry picked from commit 304a48400d9718f74ec35ae46f30868a5f4c4516) Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com> Acked-by: Stefan Bader <stefan.bader@canonical.com> Acked-by: Andy Whitcroft <andy.whitcroft@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * drm/radeon/kms: fix dp_detect handling for DP bridge chipsJesse Sung2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/825777 The HPD pin is not reliable for detecting whether a monitor is connected or not. Skip HPD and just use DDC or load detection. Fixes phantom VGA connected bugs. [Michel: fixes phantom VGA bugs on his llano system.] Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Tested-by: Michel Dänzer <michel.daenzer@amd.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> (cherry picked from commit 6777a4f6898a53974ef7fe7ce09ec41fae0f32db) Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com> Acked-by: Stefan Bader <stefan.bader@canonical.com> Acked-by: Andy Whitcroft <andy.whitcroft@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * be2net: non-member vlan pkts not received in promiscous modeSathya Perla2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CVE-2011-3347 BugLink: http://bugs.launchpad.net/bugs/880893 While configuring promiscous mode, explicitly set the VLAN_PROMISCOUS bit to make this happen. When switching off promiscous mode, re-program the vids. Signed-off-by: Xavier Selvin <xavier.selvin@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net> (cherry picked from commit c0e64ef4899df4cedc872871e54e2c069d29e519) Acked-by: Brad Figg <brad.figg@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * be2net: move to new vlan modelAjit Khaparde2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | CVE-2011-3347 BugLink: http://bugs.launchpad.net/bugs/880893 Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net> (cherry picked from commit 4c5102f94c175d81790a3a288e85efd4a8a1649a) Acked-by: Brad Figg <brad.figg@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * hp_accel: Add a new PNP idTakashi Iwai2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | New HP laptops assign a new PNP id "HPQ6000" for DriveGuard. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Matthew Garrett <mjg@redhat.com> (cherry picked from commit 24570d2293d8874cf0041616af4dc92929f30a7c) Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> BugLink: http://bugs.launchpad.net/bugs/910040 Acked-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * Linux 3.0.21Greg Kroah-Hartman2012-03-08
| | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719
| * net: fix NULL dereferences in check_peer_redir()Eric Dumazet2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 [ Upstream commit d3aaeb38c40e5a6c08dd31a1b64da65c4352be36, along with dependent backports of commits: 69cce1d1404968f78b177a0314f5822d5afdbbfb 9de79c127cccecb11ae6a21ab1499e87aa222880 218fa90f072e4aeff9003d57e390857f4f35513e 580da35a31f91a594f3090b7a2c39b85cb051a12 f7e57044eeb1841847c24aa06766c8290c202583 e049f28883126c689cf95859480d9ee4ab23b7fa ] Gergely Kalman reported crashes in check_peer_redir(). It appears commit f39925dbde778 (ipv4: Cache learned redirect information in inetpeer.) added a race, leading to possible NULL ptr dereference. Since we can now change dst neighbour, we should make sure a reader can safely use a neighbour. Add RCU protection to dst neighbour, and make sure check_peer_redir() can be called safely by different cpus in parallel. As neighbours are already freed after one RCU grace period, this patch should not add typical RCU penalty (cache cold effects) Many thanks to Gergely for providing a pretty report pointing to the bug. Reported-by: Gergely Kalman <synapse@hippy.csoma.elte.hu> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * powernow-k8: Fix indexing issueAndreas Herrmann2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit a8eb28480e9b637cc78b9aa5e08612ba97e1317a upstream. The driver uses the pstate number from the status register as index in its table of ACPI pstates (powernow_table). This is wrong as this is not a 1-to-1 mapping. For example we can have _PSS information to just utilize Pstate 0 and Pstate 4, ie. powernow-k8: Core Performance Boosting: on. powernow-k8: 0 : pstate 0 (2200 MHz) powernow-k8: 1 : pstate 4 (1400 MHz) In this example the driver's powernow_table has just 2 entries. Using the pstate number (4) as index into this table is just plain wrong. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * powernow-k8: Avoid Pstate MSR accesses on systems supporting CPBAndreas Herrmann2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 201bf0f129e1715a33568d1563d9a75b840ab4d3 upstream. Due to CPB we can't directly map SW Pstates to Pstate MSRs. Get rid of the paranoia check. (assuming that the ACPI Pstate information is correct.) Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * mmc: cb710 core: Add missing spin_lock_init for irq_lock of struct cb710_chipAxel Lin2012-03-08
| | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit b5266ea675c5a041e2852c7ccec4cf2d4f5e0cf4 upstream. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * USB: add new zte 3g-dongle's pid to option.cRui li2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 1608ea5f4b5d6262cd6e808839491cfb2a67405a upstream. As ZTE have and will use more pid for new products this year, so we need to add some new zte 3g-dongle's pid on option.c , and delete one pid 0x0154 because it use for mass-storage port. Signed-off-by: Rui li <li.rui27@zte.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * USB: usbserial: add new PID number (0xa951) to the ftdi driverMilan Kocian2012-03-08
| | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 90451e6973a5da155c6f315a409ca0a8d3ce6b76 upstream. Signed-off-by: Milan Kocian <milon@wq.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * usb: Skip PCI USB quirk handling for Netlogic XLPJayachandran C2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit e4436a7c17ac2b5e138f93f83a541cba9b311685 upstream. The Netlogic XLP SoC's on-chip USB controller appears as a PCI USB device, but does not need the EHCI/OHCI handoff done in usb/host/pci-quirks.c. The pci-quirks.c is enabled for all vendors and devices, and is enabled if USB and PCI are configured. If we do not skip the qurik handling on XLP, the readb() call in ehci_bios_handoff() will cause a crash since byte access is not supported for EHCI registers in XLP. Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * usb: gadget: zero: fix bug in loopback autoresume handlingTimo Juhani Lindfors2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 683da59d7b8ae04891636d4b59893cd4e9b0b7e5 upstream. ab943a2e125b (USB: gadget: gadget zero uses new suspend/resume hooks) introduced a copy-paste error where f_loopback.c writes to a variable declared in f_sourcesink.c. This prevents one from creating gadgets that only have a loopback function. Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * staging: r8712u: Add new Sitecom UsB IDLarry Finger2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 1793bf1deddc8ce25dc41925d5dbe64536c841b6 upstream. Add USB ID for SITECOM WLA-1000 V1 001 WLAN Reported-and-tested-by: Roland Gruber <post@rolandgruber.de> Reported-and-tested-by: Dario Lucia <dario.lucia@gmail.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * Staging: asus_oled: fix NULL-ptr crash on unloadingPekka Paalanen2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 3589e74595a4332ebf77b5ed006f3c6686071ecd upstream. Asus_oled triggers the following bug on module unloading: usbcore: deregistering interface driver asus-oled BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 IP: [<ffffffff8111292b>] sysfs_delete_link+0x30/0x66 Call Trace: [<ffffffff81225373>] device_remove_class_symlinks+0x6b/0x70 [<ffffffff812256a8>] device_del+0x9f/0x1ab [<ffffffff812257c5>] device_unregister+0x11/0x1e [<ffffffffa000cb82>] asus_oled_disconnect+0x4f/0x9e [asus_oled] [<ffffffff81277430>] usb_unbind_interface+0x54/0x103 [<ffffffff812276c4>] __device_release_driver+0xa2/0xeb [<ffffffff81227794>] driver_detach+0x87/0xad [<ffffffff812269e9>] bus_remove_driver+0x91/0xc1 [<ffffffff81227fb4>] driver_unregister+0x66/0x6e [<ffffffff812771ed>] usb_deregister+0xbb/0xc4 [<ffffffffa000ce87>] asus_oled_exit+0x2f/0x31 [asus_oled] [<ffffffff81068365>] sys_delete_module+0x1b8/0x21b [<ffffffff810ae3de>] ? do_munmap+0x2ef/0x313 [<ffffffff813699bb>] system_call_fastpath+0x16/0x1b This is due to an incorrect destruction sequence in asus_oled_exit(). Fix the order, fixes the bug. Tested on an Asus G50V laptop only. Cc: Jakub Schmidtke <sjakub@gmail.com> Signed-off-by: Pekka Paalanen <pq@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * Staging: asus_oled: fix image processingPekka Paalanen2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 635032cb397b396241372fa0ff36ae758e658b23 upstream. Programming an image was broken, because odev->buf_offs was not advanced for val == 0 in append_values(). This regression was introduced in: commit 1ff12a4aa354bed093a0240d5e6347b1e27601bc Author: Kevin A. Granade <kevin.granade@gmail.com> Date: Sat Sep 5 01:03:39 2009 -0500 Staging: asus_oled: Cleaned up checkpatch issues. Fix the image processing by special-casing val == 0. I have tested this change on an Asus G50V laptop only. Cc: Jakub Schmidtke <sjakub@gmail.com> Cc: Kevin A. Granade <kevin.granade@gmail.com> Signed-off-by: Pekka Paalanen <pq@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * target: Correct sense key for INVALID FIELD IN {PARAMETER LIST,CDB}Roland Dreier2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 9fbc8909876a2160044e71d376848973b9bfdc3f upstream. According to SPC-4, the sense key for commands that are failed with INVALID FIELD IN PARAMETER LIST and INVALID FIELD IN CDB should be ILLEGAL REQUEST (5h) rather than ABORTED COMMAND (Bh). Without this patch, a tcm_loop LUN incorrectly gives: # sg_raw -r 1 -v /dev/sda 3 1 0 0 ff 0 Sense Information: Fixed format, current; Sense key: Aborted Command Additional sense: Invalid field in cdb Raw sense data (in hex): 70 00 0b 00 00 00 00 0a 00 00 00 00 24 00 00 00 00 00 While a real SCSI disk gives: Sense Information: Fixed format, current; Sense key: Illegal Request Additional sense: Invalid field in cdb Raw sense data (in hex): 70 00 05 00 00 00 00 18 00 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 with the main point being that the real disk gives a sense key of ILLEGAL REQUEST (5h). Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * target: Allow PERSISTENT RESERVE IN for non-reservation holderMarco Sanvido2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 6816966a8418b980481b4dced7eddd1796b145e8 upstream. Initiators that aren't the active reservation holder should be able to do a PERSISTENT RESERVE IN command in all cases, so add it to the list of allowed CDBs in core_scsi3_pr_seq_non_holder(). Signed-off-by: Marco Sanvido <marco@purestorage.com> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * target: Use correct preempted registration sense codeMarco Sanvido2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit 9e08e34e3735ae057eb3834da3570995811b7eb9 upstream. The comments quote the right parts of the spec: * d) Establish a unit attention condition for the * initiator port associated with every I_T nexus * that lost its registration other than the I_T * nexus on which the PERSISTENT RESERVE OUT command * was received, with the additional sense code set * to REGISTRATIONS PREEMPTED. and * e) Establish a unit attention condition for the initiator * port associated with every I_T nexus that lost its * persistent reservation and/or registration, with the * additional sense code set to REGISTRATIONS PREEMPTED; but the actual code accidentally uses ASCQ_2AH_RESERVATIONS_PREEMPTED instead of ASCQ_2AH_REGISTRATIONS_PREEMPTED. Fix this. Signed-off-by: Marco Sanvido <marco@purestorage.com> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * mm: fix UP THP spin_is_locked BUGsHugh Dickins2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit b9980cdcf2524c5fe15d8cbae9c97b3ed6385563 upstream. Fix CONFIG_TRANSPARENT_HUGEPAGE=y CONFIG_SMP=n CONFIG_DEBUG_VM=y CONFIG_DEBUG_SPINLOCK=n kernel: spin_is_locked() is then always false, and so triggers some BUGs in Transparent HugePage codepaths. asm-generic/bug.h mentions this problem, and provides a WARN_ON_SMP(x); but being too lazy to add VM_BUG_ON_SMP, BUG_ON_SMP, WARN_ON_SMP_ONCE, VM_WARN_ON_SMP_ONCE, just test NR_CPUS != 1 in the existing VM_BUG_ONs. Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
| * mm: compaction: check for overlapping nodes during isolation for migrationMel Gorman2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BugLink: http://bugs.launchpad.net/bugs/931719 commit dc9086004b3d5db75997a645b3fe08d9138b7ad0 upstream. When isolating pages for migration, migration starts at the start of a zone while the free scanner starts at the end of the zone. Migration avoids entering a new zone by never going beyond the free scanned. Unfortunately, in very rare cases nodes can overlap. When this happens, migration isolates pages without the LRU lock held, corrupting lists which will trigger errors in reclaim or during page free such as in the following oops BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff810f795c>] free_pcppages_bulk+0xcc/0x450 PGD 1dda554067 PUD 1e1cb58067 PMD 0 Oops: 0000 [#1] SMP CPU 37 Pid: 17088, comm: memcg_process_s Tainted: G X RIP: free_pcppages_bulk+0xcc/0x450 Process memcg_process_s (pid: 17088, threadinfo ffff881c2926e000, task ffff881c2926c0c0) Call Trace: free_hot_cold_page+0x17e/0x1f0 __pagevec_free+0x90/0xb0 release_pages+0x22a/0x260 pagevec_lru_move_fn+0xf3/0x110 putback_lru_page+0x66/0xe0 unmap_and_move+0x156/0x180 migrate_pages+0x9e/0x1b0 compact_zone+0x1f3/0x2f0 compact_zone_order+0xa2/0xe0 try_to_compact_pages+0xdf/0x110 __alloc_pages_direct_compact+0xee/0x1c0 __alloc_pages_slowpath+0x370/0x830 __alloc_pages_nodemask+0x1b1/0x1c0 alloc_pages_vma+0x9b/0x160 do_huge_pmd_anonymous_page+0x160/0x270 do_page_fault+0x207/0x4c0 page_fault+0x25/0x30 The "X" in the taint flag means that external modules were loaded but but is unrelated to the bug triggering. The real problem was because the PFN layout looks like this Zone PFN ranges: DMA 0x00000010 -> 0x00001000 DMA32 0x00001000 -> 0x00100000 Normal 0x00100000 -> 0x01e80000 Movable zone start PFN for each node early_node_map[14] active PFN ranges 0: 0x00000010 -> 0x0000009b 0: 0x00000100 -> 0x0007a1ec 0: 0x0007a354 -> 0x0007a379 0: 0x0007f7ff -> 0x0007f800 0: 0x00100000 -> 0x00680000 1: 0x00680000 -> 0x00e80000 0: 0x00e80000 -> 0x01080000 1: 0x01080000 -> 0x01280000 0: 0x01280000 -> 0x01480000 1: 0x01480000 -> 0x01680000 0: 0x01680000 -> 0x01880000 1: 0x01880000 -> 0x01a80000 0: 0x01a80000 -> 0x01c80000 1: 0x01c80000 -> 0x01e80000 The fix is straight-forward. isolate_migratepages() has to make a similar check to isolate_freepage to ensure that it never isolates pages from a zone it does not hold the LRU lock for. This was discovered in a 3.0-based kernel but it affects 3.1.x, 3.2.x and current mainline. Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
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