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* mmc: need to zero sglist on initJens Axboe2007-10-16
| | | | | | | | Otherwise we could have junk in the sg fields, fooling the sg chaining into thinking ->page is valid. Acked-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Panic in blk_rq_map_sg() from CCISS driverLee Schermerhorn2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New scatter/gather list chaining [sg_next()] treats 'page' member of struct scatterlist with low bit set [0x01] as a chain pointer to another struct scatterlist [array]. The CCISS driver request function passes an uninitialized, temporary, on-stack scatterlist array to blk_rq_map_sq(). sg_next() interprets random data on the stack as a chain pointer and eventually tries to de-reference an invalid pointer, resulting in: [<ffffffff8031dd70>] blk_rq_map_sg+0x70/0x170 PGD 6090c3067 PUD 0 Oops: 0000 [1] SMP last sysfs file: /block/cciss!c0d0/cciss!c0d0p1/dev CPU 6 Modules linked in: ehci_hcd ohci_hcd uhci_hcd Pid: 1, comm: init Not tainted 2.6.23-rc6-mm1 #3 RIP: 0010:[<ffffffff8031dd70>] [<ffffffff8031dd70>] blk_rq_map_sg+0x70/0x170 RSP: 0018:ffff81060901f768 EFLAGS: 00010206 RAX: 000000040b161000 RBX: ffff81060901f7d8 RCX: 000000040b162c00 RDX: 0000000000000000 RSI: ffff81060b13a260 RDI: ffff81060b139600 RBP: 0000000000001400 R08: 00000000fffffffe R09: 0000000000000400 R10: 0000000000000000 R11: 000000040b163000 R12: ffff810102fe0000 R13: 0000000000000001 R14: 0000000000000001 R15: 00001e0000000000 FS: 00000000026108f0(0063) GS:ffff810409000b80(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000010000001e CR3: 00000006090c6000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process init (pid: 1, threadinfo ffff81060901e000, task ffff810409020800) last branch before last exception/interrupt from [<ffffffff8031de0a>] blk_rq_map_sg+0x10a/0x170 to [<ffffffff8031dd70>] blk_rq_map_sg+0x70/0x170 Stack: 000000018068ea00 ffff810102fe0000 0000000000000000 ffff810011400000 0000000000000002 0000000000000000 ffff81040b172000 ffffffff803acd3d 0000000000003ec1 ffff8106090d5000 ffff8106090d5000 ffff810102fe0000 Call Trace: [<ffffffff803acd3d>] do_cciss_request+0x15d/0x4c0 [<ffffffff80298968>] new_slab+0x1c8/0x270 [<ffffffff80298ffd>] __slab_alloc+0x22d/0x470 [<ffffffff8027327b>] mempool_alloc+0x4b/0x130 [<ffffffff8032b21e>] cfq_set_request+0xee/0x380 [<ffffffff8027327b>] mempool_alloc+0x4b/0x130 [<ffffffff8031ff98>] get_request+0x168/0x360 [<ffffffff80331b0d>] rb_insert_color+0x8d/0x110 [<ffffffff8031cfd8>] elv_rb_add+0x58/0x60 [<ffffffff8032a329>] cfq_add_rq_rb+0x69/0xa0 [<ffffffff8031c1ab>] elv_merged_request+0x5b/0x60 [<ffffffff803224fd>] __make_request+0x23d/0x650 [<ffffffff80298ffd>] __slab_alloc+0x22d/0x470 [<ffffffff80270000>] generic_write_checks+0x140/0x190 [<ffffffff8031f012>] generic_make_request+0x1c2/0x3a0 <etc> Kernel panic - not syncing: Attempted to kill init! This patch initializes the tmp_sg array to zeroes. Perhaps not the ultimate fix, but an effective work-around. I can now boot 23-rc6-mm1 on an HP Proliant x86_64 with CCISS boot disk. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> drivers/block/cciss.c | 1 + 1 file changed, 1 insertion(+) Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* remove sglist_lenFUJITA Tomonori2007-10-16
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* remove blk_queue_max_phys_segments in libataFUJITA Tomonori2007-10-16
| | | | | | | | | | | | | | | | | | | LIBATA_MAX_PRD is the maximum number of DMA scatter/gather elements permitted by the HBA's DMA engine. It's properly set to q->max_hw_segments via the sg_tablesize parameter. libata shouldn't call blk_queue_max_phys_segments. Now LIBATA_MAX_PRD is equal to SCSI_MAX_PHYS_SEGMENTS by default (both is 128), so everything is fine. But if they are changed, some code (like the scsi mid layer, sg chaining, etc) might not work properly. (Addition from Jens) The basic issue is that the physical segment setting is purely a driver issue. And since SCSI is managing the sglist, libata has no business changing the setting. All libata should care about is the hw segment setting. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* revert sg segment size ifdefsFUJITA Tomonori2007-10-16
| | | | | | | | This reverts sg segment size ifdefs that the current code has in order to provide a way to reduce sgpool memory consumption. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Fixup u14-34f ENABLE_SG_CHAININGAndrew Morton2007-10-16
| | | | | Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* qla1280: enable use_sg_chaining optionFUJITA Tomonori2007-10-16
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* [SCSI] add use_sg_chaining option to scsi_host_templateFUJITA Tomonori2007-10-16
| | | | | | | | | | This option is true if a low-level driver can support sg chaining. This will be removed eventually when all the drivers are converted to support sg chaining. q->max_phys_segments is set to SCSI_MAX_SG_SEGMENTS if false. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* qla1280: sg chaining fixesFUJITA Tomonori2007-10-16
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* libata sg chaining support fixFUJITA Tomonori2007-10-16
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* zfcp: sg chaining supportFUJITA Tomonori2007-10-16
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ips: sg chaining supportFUJITA Tomonori2007-10-16
| | | | | | | | ips properly uses scsi_for_each_sg for the normal I/O path, however, the breakup path doesn't. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* IDE: sg chaining supportJens Axboe2007-10-16
| | | | | Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Fusion: sg chaining supportJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* USB storage: sg chaining supportJens Axboe2007-10-16
| | | | | | | | | | | [PATCH] USB storage: sg chaining support Modify usb_stor_access_xfer_buf() to take a pointer to an sg entry pointer, so we can keep track of that instead of passing around an integer index (which we can't use when dealing with multiple scatterlist arrays). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* infiniband: sg chaining supportJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* aha1542: convert to use the data buffer accessorsJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ide-scsi: sg chaining supportJens Axboe2007-10-16
| | | | | Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* qlogicpti: sg chaining supportJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* aic94xx: sg chaining supportJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* qla1280: sg chaining supportJens Axboe2007-10-16
| | | | | | Interesting hardware setup... Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* scsi generic: sg chaining supportJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* scsi_debug: support sg chainingJens Axboe2007-10-16
| | | | | Signed-off-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* libata: convert to using sg helpersJens Axboe2007-10-16
| | | | | | | This converts libata to using the sg helpers for looking up sg elements, instead of doing it manually. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* SCSI: support for allocating large scatterlistsJens Axboe2007-10-16
| | | | | | | | | | This is what enables large commands. If we need to allocate an sgtable that doesn't fit in a single page, allocate several SCSI_MAX_SG_SEGMENTS sized tables and chain them together. SCSI defaults to large chained sg tables, if the arch supports it. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* scsi: simplify scsi_free_sgtable()Jens Axboe2007-10-16
| | | | | | | Just pass in the command, no point in passing in the scatterlist and scatterlist pool index seperately. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* scsi: convert to using sg helpersJens Axboe2007-10-16
| | | | | | | This converts the SCSI mid layer to using the sg helpers for looking up sg elements, instead of doing it manually. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* pktcdvd: don't rely on bio_init() preserving bio->bi_destructorLaurent Riffard2007-10-16
| | | | | Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* pktcdvd: don't rely on bio_init() preserving bio->bi_io_vecJens Axboe2007-10-16
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* remove ide_get_error_location()Adrian Bunk2007-10-16
| | | | | Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* block: convert blkdev_issue_flush() to use empty barriersJens Axboe2007-10-16
| | | | | | | Then we can get rid of ->issue_flush_fn() and all the driver private implementations of that. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-10-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits) [ARM] 4578/1: CM-x270: PCMCIA support [ARM] 4577/1: ITE 8152 PCI bridge support [ARM] 4576/1: CM-X270 machine support [ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put() [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c [ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols [ARM] pxa: PXA3xx base support [NET] smc91x: fix PXA DMA support code [SERIAL] Fix console initialisation ordering [ARM] pxa: tidy up arch/arm/mach-pxa/Makefile [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes [ARM] 4600/1: fix kernel build failure with build-id-supporting binutils [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23) [ARM] Rename consistent_sync() as dma_cache_maint() [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 [ARM] 4594/1: ns9xxx: use the new gpio functions [ARM] 4593/1: ns9xxx: implement generic clockevents ...
| * [ARM] 4578/1: CM-x270: PCMCIA supportMike Rapoport2007-10-15
| | | | | | | | | | | | | | This patch provides support for PCMCIA on CM-X270 Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 4576/1: CM-X270 machine supportMike Rapoport2007-10-15
| | | | | | | | | | | | | | This patch provides core support for CM-X270 platform. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.cRussell King2007-10-15
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.cRussell King2007-10-15
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [NET] smc91x: fix PXA DMA support codeRussell King2007-10-15
| | | | | | | | | | | | | | | | | | | | | | | | The PXA DMA support code for smc91x doesn't pass a struct device to the dma_*map_single() functions, which leads to an oops in the dma bounce code. We have a struct device which was used to probe the SMC chip. Use it. (This patch is slightly larger because it requires struct smc_local to move into the header file.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [SERIAL] Fix console initialisation orderingRussell King2007-10-15
| | | | | | | | | | | | | | | | Ensure pm callback is called upon initialisation to place port in correct power saving state. Ensure console is initialised prior to deciding whether to power down the port. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update pxa irda driver to use clk supportRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update PXA UDC driver to use clk supportRussell King2007-10-12
| | | | | | | | | | | | Note: this produces a WARN() dump. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update pxa serial driver to use clk supportRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update PXA MMC interface driver to use clk supportRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update pxa27x keypad driver to use clk supportRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update pxa i2c driver to use clk supportRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: update pxafb to use clk supportRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] pxa: convert PXA serial drivers to use platform resourcesRussell King2007-10-12
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [libata] pata_cs5536: new API build fixJeff Garzik2007-10-15
| | | | | | | | | | | | This driver was using hooks that were very recently removed. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | Merge branch 'master' of ↵Linus Torvalds2007-10-15
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits) [IPV6]: Consolidate the ip6_pol_route_(input|output) pair [TCP]: Make snd_cwnd_cnt 32-bit [TCP]: Update the /proc/net/tcp documentation [NETNS]: Don't panic on creating the namespace's loopback [NEIGH]: Ensure that pneigh_lookup is protected with RTNL [INET]: kmalloc+memset -> kzalloc in frag_alloc_queue [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled. [IPV6]: Replace sk_buff ** with sk_buff * in input handlers [SELINUX]: Update for netfilter ->hook() arg changes. [INET]: Consolidate the xxx_put [INET]: Small cleanup for xxx_put after evictor consolidation [INET]: Consolidate the xxx_evictor [INET]: Consolidate the xxx_frag_destroy [INET]: Consolidate xxx_the secret_rebuild [INET]: Consolidate the xxx_frag_kill [INET]: Collect common frag sysctl variables together [INET]: Collect frag queues management objects together [INET]: Move common fields from frag_queues in one place. [TG3]: Fix performance regression on 5705. [ISDN]: Remove local copy of device name to make sure renames work. ...
| * | [NETNS]: Don't panic on creating the namespace's loopbackPavel Emelyanov2007-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the loopback device is failed to initialize inside the new namespaces, panic() is called. Do not do it when the namespace in question is not the init_net. Plus cleanup the error path a bit. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled.Denis V. Lunev2007-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Mon, Oct 15, 2007 at 06:44:56PM +0400, Denis V. Lunev wrote: Compilation fix. The problem appears after 7c076d1de869256848dacb8de0050a3a390f95df by Karsten Keil <kkeil@suse.de> Acked-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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