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* x86/agp: Fix agp_amd64_init regressionFUJITA Tomonori2010-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the regression introduced by commit 42590a75019a50012f25a962246498dead428433 ("x86/agp: Fix agp_amd64_init and agp_amd64_cleanup"). The above commit changes agp_amd64_init() not to do anything if gart_iommu_aperture is not zero. If GART iommu calls agp_amd64_init(), we need to skip agp_amd64_init() when it's called later via module_init. The problem is that gart_iommu_init() calls agp_amd64_init() with not zero gart_iommu_aperture so agp_amd64_init() is never initialized. When gart_iommu_init() calls agp_amd64_init(), agp should be always initialized. Reported-by: Marin Mitov <mitov@issp.bas.bg> Reported-by: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Marin Mitov <mitov@issp.bas.bg> Tested-by: Kevin Winchester <kjwinchester@gmail.com> Cc: davej@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <20100125141006O.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: Add quirk for Intel DG45FC board to avoid low memory corruptionDavid Härdeman2010-01-29
| | | | | | | | | | | | | | | | | Commit 6aa542a694dc9ea4344a8a590d2628c33d1b9431 added a quirk for the Intel DG45ID board due to low memory corruption. The Intel DG45FC shares the same BIOS (and the same bug) as noted in: http://bugzilla.kernel.org/show_bug.cgi?id=13736 Signed-off-by: David Härdeman <david@hardeman.nu> LKML-Reference: <20100128200254.GA9134@hardeman.nu> Cc: <stable@kernel.org> Cc: Alexey Fisher <bug-track@fisher-privat.net> Cc: ykzhao <yakui.zhao@intel.com> Cc: Tony Bones <aabonesml@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86: Add Dell OptiPlex 760 reboot quirkLeann Ogasawara2010-01-27
| | | | | | | | | | | | Dell OptiPlex 760 hangs on reboot unless reboot=bios is used. Add quirk to reboot through the BIOS. BugLink: https://bugs.launchpad.net/bugs/488319 Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com> LKML-Reference: <1264634958.27335.1091.camel@emiko> Cc: <stable@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86, UV: Fix RTC latency bug by reading replicated cachelinesDimitri Sivanich2010-01-27
| | | | | | | | | | | For SGI UV node controllers (HUB) rev 2.0 or greater, use replicated cachelines to read the RTC timer. This optimization allows faster simulataneous reads from a given socket. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Cc: Jack Steiner <steiner@sgi.com> LKML-Reference: <20100122154140.GB4975@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'iommu/fixes' of ↵Ingo Molnar2010-01-27
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
| * Merge branches 'amd-iommu/fixes' and 'dma-debug/fixes' into iommu/fixesJoerg Roedel2010-01-22
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| | * lib/dma-debug.c: mark file-local struct symbol static.Thiago Farina2010-01-22
| | | | | | | | | | | | | | | | | | | | | warning: symbol 'filter_fops' was not declared. Should it be static? Signed-off-by: Thiago Farina <tfransosi@gmail.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | x86/amd-iommu: Fix deassignment of a device from the pt_domainJoerg Roedel2010-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | Deassigning a device from the passthrough domain does not work and breaks device assignment to kvm guests. This patch fixes the issue. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | x86/amd-iommu: Fix IOMMU-API initialization for iommu=ptJoerg Roedel2010-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the initialization of the iommu-api out of the dma-ops initialization code. This ensures that the iommu-api is initialized even with iommu=pt. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | x86/amd-iommu: Fix NULL pointer dereference in __detach_device()Joerg Roedel2010-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the __detach_device function the reference count for a device-domain binding may become zero. This results in the device being removed from the domain and dev_data->domain will be NULL. This is bad because this pointer is dereferenced when trying to unlock the domain->lock. This patch fixes the issue by keeping the domain in a seperate variable. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | x86/amd-iommu: Fix possible integer overflowJoerg Roedel2010-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | The variable i in this function could be increased to over 2**32 which would result in an integer overflow when using int. Fix it by changing i to unsigned long. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* | | Merge branch 'urgent' of ↵Ingo Molnar2010-01-27
|\ \ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
| * | | oprofile/x86: add Xeon 7500 series supportAndi Kleen2010-01-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add Xeon 7500 series support to oprofile. Straight forward: it's the same as Core i7, so just detect the model number. No user space changes needed. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| * | | oprofile/x86: fix crash when profiling more than 28 eventsSuravee Suthikulpanit2010-01-25
| |/ / | | | | | | | | | | | | | | | | | | | | | With multiplexing enabled oprofile crashs when profiling more than 28 events. This patch fixes this. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
* | | x86, msr/cpuid: Pass the number of minors when unregistering MSR and CPUID ↵Russ Anderson2010-01-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers. Pass the number of minors when unregistering MSR and CPUID drivers. Reported-by: Dean Nelson <dnelson@redhat.com> Signed-off-by: Dean Nelson <dnelson@redhat.com> LKML-Reference: <20100127023722.GA22305@sgi.com> Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | x86: Remove "x86 CPU features in debugfs" (CONFIG_X86_CPU_DEBUG)H. Peter Anvin2010-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_X86_CPU_DEBUG, which provides some parsed versions of the x86 CPU configuration via debugfs, has caused boot failures on real hardware. The value of this feature has been marginal at best, as all this information is already available to userspace via generic interfaces. Causes crashes that have not been fixed + minimal utility -> remove. See the referenced LKML thread for more information. Reported-by: Ozan Çağlayan <ozan@pardus.org.tr> Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <alpine.LFD.2.00.1001221755320.13231@localhost.localdomain> Cc: Jaswinder Singh Rajput <jaswinder@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Yinghai Lu <yinghai@kernel.org> Cc: <stable@kernel.org>
* | | Revert "x86: ucode-amd: Load ucode-patches once ..."Andreas Herrmann2010-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d1c84f79a6ba992dc01e312c44a21496303874d6 leads to a regression when microcode_amd.c is compiled into the kernel. It causes a big boot delay because the firmware is not available. See http://marc.info/?l=linux-kernel&m=126267290920060 It also renders the reload sysfs attribute useless. Fixing this is too intrusive for an -rc5 kernel. Thus I'd like to restore the microcode loading behaviour of kernel 2.6.32. CC: Gene Heskett <gene.heskett@verizon.net> Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100122203456.GB13792@alberich.amd.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | x86: Disable HPET MSI on ATI SB700/SB800Pallipadi, Venkatesh2010-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HPET MSI on platforms with ATI SB700/SB800 as they seem to have some side-effects on floppy DMA. Do not use HPET MSI on such platforms. Original problem report from Mark Hounschell http://lkml.indiana.edu/hypermail/linux/kernel/0912.2/01118.html [ This patch needs to go to stable as well. But, there are some conflicts that prevents the patch from going as is. I can rebase/resubmit to stable once the patch goes upstream. hpa: still Cc:'ing stable@ as an FYI. ] Tested-by: Mark Hounschell <markh@compro.net> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: <stable@kernel.org> LKML-Reference: <20100121190952.GA32523@linux-os.sc.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | x86: Set hotpluggable nodes in nodes_possible_mapDavid Rientjes2010-01-23
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nodes_possible_map does not currently include nodes that have SRAT entries that are all ACPI_SRAT_MEM_HOT_PLUGGABLE since the bit is cleared in nodes_parsed if it does not have an online address range. Unequivocally setting the bit in nodes_parsed is insufficient since existing code, such as acpi_get_nodes(), assumes all nodes in the map have online address ranges. In fact, all code using nodes_parsed assumes such nodes represent an address range of online memory. nodes_possible_map is created by unioning nodes_parsed and cpu_nodes_parsed; the former represents nodes with online memory and the latter represents memoryless nodes. We now set the bit for hotpluggable nodes in cpu_nodes_parsed so that it also gets set in nodes_possible_map. [ hpa: Haicheng Li points out that this makes the naming of the variable cpu_nodes_parsed somewhat counterintuitive. However, leave it as is in the interest of keeping the pure bug fix patch small. ] Signed-off-by: David Rientjes <rientjes@google.com> Tested-by: Haicheng Li <haicheng.li@linux.intel.com> LKML-Reference: <alpine.DEB.2.00.1001201152040.30528@chino.kir.corp.google.com> Cc: <stable@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | Linux 2.6.33-rc5v2.6.33-rc5Linus Torvalds2010-01-21
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* | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-01-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: x86: Add support for the ANY bit perf: Change the is_software_event() definition perf: Honour event state for aux stream data perf: Fix perf_event_do_pending() fallback callsite perf kmem: Print usage help for unknown commands perf kmem: Increase "Hit" column length hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference change perf timechart: Use tid not pid for COMM change
| * | perf: x86: Add support for the ANY bitStephane Eranian2010-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Propagate the ANY bit into the fixed counter config for v3 and higher. Signed-off-by: Stephane Eranian <eranian@google.com> [a.p.zijlstra@chello.nl: split from larger patch] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4b5430c6.0f975e0a.1bf9.ffff85fe@mx.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | perf: Change the is_software_event() definitionPeter Zijlstra2010-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | The is_software_event() definition always confuses me because its an exclusive expression, make it an inclusive one. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | perf: Honour event state for aux stream dataPeter Zijlstra2010-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Anton reported that perf record kept receiving events even after calling ioctl(PERF_EVENT_IOC_DISABLE). It turns out that FORK,COMM and MMAP events didn't respect the disabled state and kept flowing in. Reported-by: Anton Blanchard <anton@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Tested-by: Anton Blanchard <anton@samba.org> LKML-Reference: <1263459187.4244.265.camel@laptop> CC: stable@kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | perf: Fix perf_event_do_pending() fallback callsitePeter Zijlstra2010-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Paul questioned the context in which we should call perf_event_do_pending(). After looking at that I found that it should be called from IRQ context these days, however the fallback call-site is placed in softirq context. Ammend this by placing the callback in the IRQ timer path. Reported-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1263374859.4244.192.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | perf kmem: Print usage help for unknown commandsPekka Enberg2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes "perf kmem" to print usage help instead of doing nothing. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> LKML-Reference: <1263921971-10782-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | perf kmem: Increase "Hit" column lengthPekka Enberg2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's fairly easy to overflow the "Hit" column with just few seconds of tracing so increase the column length to avoid broken formatting. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> LKML-Reference: <1263921803-10214-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference changeLuca Barbieri2010-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 62edab9056a6cf0c9207339c8892c923a5217e45 (from June 2009 but merged in 2.6.33) changes notify_die to pass dr6 by reference. However, it forgets to fix the check for DR_STEP in kmmio.c, breaking mmiotrace. It also passes a wrong value to the post handler. This simple fix makes mmiotrace work again. Signed-off-by: Luca Barbieri <luca@luca-barbieri.com> Acked-by: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1263634770-14578-1-git-send-email-luca@luca-barbieri.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | perf timechart: Use tid not pid for COMM changeArjan van de Ven2010-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A process that changes its comm field, does this on a per kernel task struct basis. The timechart tool used, incorrectly, the pid to track this, and should have used the tid instead... Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> CC: <stable@kernel.org> LKML-Reference: <20100116125319.34ac3edd@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2010-01-21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Reassign prev and switch_count when reacquire_kernel_lock() fail sched: Fix vmark regression on big machines
| * | | sched: Reassign prev and switch_count when reacquire_kernel_lock() failYong Zhang2010-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Assume A->B schedule is processing, if B have acquired BKL before and it need reschedule this time. Then on B's context, it will go to need_resched_nonpreemptible for reschedule. But at this time, prev and switch_count are related to A. It's wrong and will lead to incorrect scheduler statistics. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <2674af741001102238w7b0ddcadref00d345e2181d11@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | sched: Fix vmark regression on big machinesMike Galbraith2010-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SD_PREFER_SIBLING is set at the CPU domain level if power saving isn't enabled, leading to many cache misses on large machines as we traverse looking for an idle shared cache to wake to. Change the enabler of select_idle_sibling() to SD_SHARE_PKG_RESOURCES, and enable same at the sibling domain level. Reported-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1262612696.15495.15.camel@marge.simson.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'upstream-linus' of ↵Linus Torvalds2010-01-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: retry FS IOs even if it has failed with AC_ERR_INVALID
| * | | | libata: retry FS IOs even if it has failed with AC_ERR_INVALIDTejun Heo2010-01-20
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libata currently doesn't retry if a command fails with AC_ERR_INVALID assuming that retrying won't get it any further even if retried. However, a failure may be classified as invalid through hardware glitch (incorrect reading of the error register or firmware bug) and there isn't whole lot to gain by not retrying as actually invalid commands will be failed immediately. Also, commands serving FS IOs are extremely unlikely to be invalid. Retry FS IOs even if it's marked invalid. Transient and incorrect invalid failure was seen while debugging firmware related issue on Samsung n130 on bko#14314. http://bugzilla.kernel.org/show_bug.cgi?id=14314 Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds2010-01-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: tty: fix race in tty_fasync serial: serial_cs: oxsemi quirk breaks resume serial: imx: bit &/| confusion serial: Fix crash if the minimum rate of the device is > 9600 baud serial-core: resume serial hardware with no_console_suspend serial: 8250_pnp: use wildcard for serial Wacom tablets nozomi: quick fix for the close/close bug compat_ioctl: Supress "unknown cmd" message on serial /dev/console
| * | | | tty: fix race in tty_fasyncGreg Kroah-Hartman2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to keep the lock held over the call to __f_setown() to prevent a PID race. Thanks to Al Viro for pointing out the problem, and to Travis for making us look here in the first place. Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Tavis Ormandy <taviso@google.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Julien Tinnes <jln@google.com> Cc: Matt Mackall <mpm@selenic.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: serial_cs: oxsemi quirk breaks resumePavel Machek2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quirk is applied on all cards with given manfid (is it that correct?). Unfortunately, that quirk breaks resume on zaurus with billionton bluetooth card inserted: c950ctrl is 0 and outb() faults. I believe it is simply not a multiport card. (info->multi == 1). ... ... confirmed by printks. Signed-off-by: Pavel Machek <pavel@ucw.cz> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: imx: bit &/| confusionRoel Kluin2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since UCR1_UARTEN is defined 1, the port was always treated as enabled. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Acked-by: Oskar Schirmer <os@emlix.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabian Godehardt <fg@emlix.com> Cc: Daniel Glöckner <dg@emlix.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: Fix crash if the minimum rate of the device is > 9600 baudAlan Cox2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In that situation if the old rate is invalid and the new rate is invalid and the chip cannot do 9600 baud we report zero, which makes all the drivers explode. Instead force the rate based on min/max Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial-core: resume serial hardware with no_console_suspendStanislav Brabec2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Perform a tricky suspend/resume even with no_console_suspend. With no_console_suspend, kernel skips serial port suspend/resume and the serial hardware may remain in undefined state after resume. It actually happens on devices that don't have BIOS that handle serial initialization. It makes impossible to use serial console after resume. Devices affected by this problem include: Sharp Zaurus devices Several PXA based ARM embedded boards The patch does: - Save the hardware state - Perform buffer flush in time of its suspend call - Tell the driver that port is suspended - But still accept new data - And keep console hardware in state that allows to send them It allows to capture late console messages without breaking console after resume. This is just a resend of a patch discussed in these threads, as the patch was not yet applied. "Possible suspend/resume regression in .32-rc?" (Nov 1-5, 2009, ARM list, later LKML) "serial-core: resume serial hardware with no_console_suspend" (Sep 15-Oct 18, 2009, LKML & ARM lists) Signed-off-by: Stanislav Brabec <sbrabec@suse.cz> Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com> Tested-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: 8250_pnp: use wildcard for serial Wacom tabletsMatthew Garrett2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wacom claims that the WACF namespace will always be devoted to serial Wacom tablets. Remove the existing entries and add a wildcard to avoid having to update the kernel every time they add a new device. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> Tested-by: Ping Cheng <pingc@wacom.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | nozomi: quick fix for the close/close bugAlan Cox2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nozomi goes wrong if you get the sequence open open close [stuff] close which turns out to occur on some ppp type setups. This is a quick patch up for the problem. It's not really fixing Nozomi which completely fails to implement tty open/close semantics and all the other needed stuff. Doing it right is a rather more invasive patch set and not one that will backport. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | compat_ioctl: Supress "unknown cmd" message on serial /dev/consoleAtsushi Nemoto2010-01-20
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the commit fb07a5f8 ("compat_ioctl: remove all VT ioctl handling"), I got this error message on 64-bit mips kernel with 32-bit busybox userland: ioctl32(init:1): Unknown cmd fd(0) cmd(00005600){t:'V';sz:0} arg(7fd76480) on /dev/console The cmd 5600 is VT_OPENQRY. The busybox's init issues this ioctl to know vt-console or serial-console. If the console was serial console, VT ioctls are not handled by the serial driver. And by quick search, I found some programs using VT_GETMODE to check vt-console is available or not. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds2010-01-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: hv: fix smp problems in the hyperv core code Staging: et131x: Fix 2.6.33rc1 regression in et131x Staging: asus_oled: fix oops in 2.6.32.2
| * | | | Staging: hv: fix smp problems in the hyperv core codeGreg Kroah-Hartman2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a number of SMP problems that were in the hyperv core code. Patch originally written by K. Y. Srinivasan <ksrinivasan@novell.com> but forward ported to the latest in-kernel code and tweaked slightly by me. Novell, Inc. hereby disclaims all copyright in any derivative work copyright associated with this patch. Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com> Cc: Hank Janssen <hjanssen@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com>. Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | Staging: et131x: Fix 2.6.33rc1 regression in et131xAlan Cox2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | et131x: Fix 12bit wrapping From: Alan Cox <alan@linux.intel.com> The 12bit wrap logic conversion is wrong and this shows up for some memory sizes and layouts of card. Patch it up for now, once the kernel view of status is cleaned up it'll become two variables and a lot saner. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | Staging: asus_oled: fix oops in 2.6.32.2Eugeni Dodonov2010-01-20
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After updating to 2.6.32 kernel, I started experiencing Oopses caused by the asus_oled module. After quick investigation, I wrapped this simple patch which fixes an Oops in by asus_oled module on 2.6.32.2 kernel, caused by incorrect usage of strict_strtoul function call within set_enabled and set_disabled functions. This can be triggered by simple running the userspace client for asus_old (e.g., 'asusoled -e' or 'asusoled -d'). Signed-off-by: Eugeni Dodonov <eugeni@mandriva.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds2010-01-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Revert "sysdev: fix prototype for memory_sysdev_class show/store functions" driver-core: fix devtmpfs crash on s390
| * | | | Revert "sysdev: fix prototype for memory_sysdev_class show/store functions"Greg Kroah-Hartman2010-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 8ff410daa009c4b44be445ded5b0cec00abc0426 It should not have been sent to Linus's tree yet, as it depends on changes that are queued up in my driver-core for the .34 kernel merge. Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: "Zheng, Shaohui" <shaohui.zheng@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | driver-core: fix devtmpfs crash on s390Heiko Carstens2010-01-20
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Mon, Jan 18, 2010 at 05:26:20PM +0530, Sachin Sant wrote: > Hello Heiko, > > Today while trying to boot next-20100118 i came across > the following Oops : > > Brought up 4 CPUs > Unable to handle kernel pointer dereference at virtual kernel address 0000000000 > 543000 > Oops: 0004 #1 SMP > Modules linked in: > CPU: 0 Not tainted 2.6.33-rc4-autotest-next-20100118-5-default #1 > Process swapper (pid: 1, task: 00000000fd792038, ksp: 00000000fd797a30) > Krnl PSW : 0704200180000000 00000000001eb0b8 (shmem_parse_options+0xc0/0x328) > R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 > Krnl GPRS: 000000000054388a 000000000000003d 0000000000543836 000000000000003d > 0000000000000000 0000000000483f28 0000000000536112 00000000fd797d00 > 00000000fd4ba100 0000000000000100 0000000000483978 0000000000543832 > 0000000000000000 0000000000465958 00000000001eb0b0 00000000fd797c58 > Krnl Code: 00000000001eb0aa: c0e5000994f1 brasl %r14,31da8c > 00000000001eb0b0: b9020022 ltgr %r2,%r2 > 00000000001eb0b4: a784010b brc 8,1eb2ca > >00000000001eb0b8: 92002000 mvi 0(%r2),0 > 00000000001eb0bc: a7080000 lhi %r0,0 > 00000000001eb0c0: 41902001 la %r9,1(%r2) > 00000000001eb0c4: b9040016 lgr %r1,%r6 > 00000000001eb0c8: b904002b lgr %r2,%r11 > Call Trace: > (<00000000fd797c50> 0xfd797c50) > <00000000001eb5da> shmem_fill_super+0x13a/0x25c > <0000000000228cfa> get_sb_single+0xbe/0xdc > <000000000034ffc0> dev_get_sb+0x2c/0x38 > <000000000066c602> devtmpfs_init+0x46/0xc0 > <000000000066c53e> driver_init+0x22/0x60 > <000000000064d40a> kernel_init+0x24e/0x3d0 > <000000000010a7ea> kernel_thread_starter+0x6/0xc > <000000000010a7e4> kernel_thread_starter+0x0/0xc > > I never tried to boot a kernel with DEVTMPFS enabled on a s390 box. > So am wondering if this is supported or not ? If you think this > is supported i will send a mail to community on this. There is nothing arch specific to devtmpfs. This part crashes because the kernel tries to modify the data read-only section which is write protected on s390. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-01 17:24:34 -0400