Messages in this thread | | | Date | Sun, 18 Feb 2007 01:53:16 +0100 | Subject | Re: mm snapshot broken-out-2007-02-17-03-25.tar.gz uploaded | From | Michal Piotrowski <> |
| |
Andrew Morton napisał(a): > On Sat, 17 Feb 2007 23:23:17 +0100 "Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote: > >> On 17/02/07, Andrew Morton <akpm@linux-foundation.org> wrote: >>> On Sat, 17 Feb 2007 20:58:55 +0100 "Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote: >>> >>>> On 17/02/07, Andrew Morton <akpm@linux-foundation.org> wrote: >>>>> On Sat, 17 Feb 2007 19:36:39 +0100 Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote: >>>>> >>>>>> akpm@linux-foundation.org napisał(a): >>>>>>> The mm snapshot broken-out-2007-02-17-03-25.tar.gz has been uploaded to >>>>>>> >>>>>>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/mm/broken-out-2007-02-17-03-25.tar.gz >>>>>>> >>>>>> BUG: unable to handle kernel paging request at virtual address 6b6b6b6f >>>>> hm, how did you make that happen? >>>>> >>>> I don't know. I can reproduce this bug. >>>> >>> Could you bisect it please? The patches to suspect are >> [..] >>> For git-block, do >>> >>> quilt pop scsi-megaraid_sas-return-sync-cache-call-with-success.patch >>> >>> and retest. If that doesn't fail, do >>> >>> quilt push git-block-xfs-barriers-broke.patch >>> >>> and retest. >>> >> Ok, this must be a git-block-* stuff. >> >> Jens, can you take a look at this bug? >> http://www.ussg.iu.edu/hypermail/linux/kernel/0702.2/0646.html >> > > I wonder why. I can't make it happen on two machines, scsi, sata and IDE. > And afaict git-block isn't changed from 2.6.20-mm1. > > Are you sure? >
Absolutely? No.
Do you believe in statistic?
10 clean boots http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/broken-out-2007-02-17-03-25/10_clean_boots_without_git_block_stuff.txt
10 boots with git-block-* http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/broken-out-2007-02-17-03-25/10_boots_with_git_bloack_stuff.txt
cat 10_boots_with_git_bloack_stuff.txt | grep "BUG: unable to handle kernel paging request at virtual address 6b6b6b6f" | wc -l 1
cat 10_boots_with_git_bloack_stuff.txt | grep "EIP" EIP: 0060:[<c01df352>] Not tainted VLI EIP is at blk_unplug_current+0x4d/0x132 EIP: [<c01df352>] blk_unplug_current+0x4d/0x132 SS:ESP 0068:f6eabd54 EIP: 0060:[<c01df352>] Not tainted VLI EIP is at blk_unplug_current+0x4d/0x132 EIP: [<c01df352>] blk_unplug_current+0x4d/0x132 SS:ESP 0068:f6eabaf8 EIP: 0060:[<c01e2871>] Not tainted VLI EIP is at __make_request+0xeb/0x2e6 EIP: [<c01e2871>] __make_request+0xeb/0x2e6 SS:ESP 0068:f7e35cc0 EIP: 0060:[<c01e11ee>] Not tainted VLI EIP is at bio_attempt_back_merge+0x1b/0xb2 EIP: [<c01e11ee>] bio_attempt_back_merge+0x1b/0xb2 SS:ESP 0068:f6f31b88
----------------
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000108 printing eip: c01df352 *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP last sysfs file: /block/sda/removable Modules linked in: snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm evdev intel_agp snd_timer snd soundcore agpgart skge sk98lin snd_page_alloc i2c_i801 8139too mii ide_cd cdrom rtc unix CPU: 0 EIP: 0060:[<c01df352>] Not tainted VLI EFLAGS: 00010202 (2.6.20 #8) EIP is at blk_unplug_current+0x4d/0x132 eax: f7c2bce8 ebx: 00000001 ecx: f6eab000 edx: c56deae0 esi: f7c2bcd4 edi: 00000000 ebp: f6eabd90 esp: f6eabd54 ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Process vol_id (pid: 1313, ti=f6eab000 task=f6f800b0 task.ti=f6eab000) Stack: 00000000 f6f800b0 c03159e5 00000000 f6eabd84 c013ca75 c6004fb0 f7c2bce8 00000046 c6004fb0 c6004fb0 00000282 00000001 c044bda0 05bd5d80 f6eabda4 c031377a f6eabdd0 f6eabdd0 c6004fb0 f6eabdac c01554d6 f6eabdc4 c03138d6 Call Trace: [<c010513d>] show_trace_log_lvl+0x1a/0x2f [<c01051ef>] show_stack_log_lvl+0x9d/0xa5 [<c01053e4>] show_registers+0x1ed/0x32c [<c0105640>] die+0x11d/0x234 [<c0119729>] do_page_fault+0x43a/0x50d [<c0315cac>] error_code+0x7c/0x84 [<c031377a>] io_schedule+0x3d/0x9a [<c01554d6>] sleep_on_page+0x8/0xc [<c03138d6>] __wait_on_bit_lock+0x30/0x59 [<c01554c7>] __lock_page+0x53/0x5a [<c0155bc4>] do_generic_mapping_read+0x1cd/0x41e [<c01578a3>] generic_file_aio_read+0x16a/0x197 [<c0171441>] do_sync_read+0xc2/0xff [<c0171c51>] vfs_read+0xad/0x136 [<c0172084>] sys_read+0x3d/0x61 [<c0104164>] syscall_call+0x7/0xb ======================= Code: 75 04 0f 0b eb fe 48 89 46 0c 85 c0 0f 85 f6 00 00 00 8b 7e <4>AC'97 0 analog subsections not ready 1c c7 46 1c 00 00 00 00 8d 46 14 89 45 e0 39 46 14 0f 84 c3 00 00 00 <8b> 87 08 01 00 00 e8 c8 62 13 00 c7 45 e4 00 00 00 00 8b 5e 14 EIP: [<c01df352>] blk_unplug_current+0x4d/0x132 SS:ESP 0068:f6eabd54 BUG: unable to handle kernel NULL pointer dereference at virtual address 00000108 printing eip: c01df352 *pde = 00000000 Oops: 0000 [#2] PREEMPT SMP last sysfs file: /block/sdb/dev Modules linked in: snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm evdev intel_agp snd_timer snd soundcore agpgart skge sk98lin snd_page_alloc i2c_i801 8139too mii ide_cd cdrom rtc unix CPU: 1 EIP: 0060:[<c01df352>] Not tainted VLI EFLAGS: 00010202 (2.6.20 #8) EIP is at blk_unplug_current+0x4d/0x132 eax: f7c2bce8 ebx: f6eabb5c ecx: f6eabaec edx: f7d9ce70 esi: f7c2bcd4 edi: 00000000 ebp: f6eabb34 esp: f6eabaf8 ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068 Process vol_id (pid: 1313, ti=f6eab000 task=f6f800b0 task.ti=f6eab000) Stack: c03eb58c c5fc4560 f6eabb24 c01591c1 c015b3eb 00000000 c03eb480 f7c2bce8 00000000 00000000 00000000 00000000 f6eabb5c f7d9ce70 00000000 f6eabb48 c015a320 0000000a f7d9ce70 f6eabb84 f6eabb90 c015610c 00000000 00000000 Call Trace: [<c010513d>] show_trace_log_lvl+0x1a/0x2f [<c01051ef>] show_stack_log_lvl+0x9d/0xa5 [<c01053e4>] show_registers+0x1ed/0x32c [<c0105640>] die+0x11d/0x234 [<c0119729>] do_page_fault+0x43a/0x50d [<c0315cac>] error_code+0x7c/0x84 [<c015a320>] do_writepages+0x41/0x48 [<c015610c>] __filemap_fdatawrite_range+0x5b/0x67 [<c0156319>] filemap_fdatawrite+0x26/0x28 [<c015632f>] filemap_write_and_wait+0x14/0x2d [<c018e04f>] sync_blockdev+0x17/0x1d [<c0191a24>] __blkdev_put+0x45/0x129 [<c0191b12>] blkdev_put+0xa/0xc [<c01923b9>] blkdev_close+0x28/0x2b [<c017240e>] __fput+0xb9/0x163 [<c01724cf>] fput+0x17/0x19 [<c016feb1>] filp_close+0x54/0x5c [<c012373a>] put_files_struct+0x67/0xa9 [<c01247ec>] do_exit+0x22b/0x702 [<c0105731>] die+0x20e/0x234 [<c0119729>] do_page_fault+0x43a/0x50d [<c0315cac>] error_code+0x7c/0x84 [<c031377a>] io_schedule+0x3d/0x9a [<c01554d6>] sleep_on_page+0x8/0xc [<c03138d6>] __wait_on_bit_lock+0x30/0x59 [<c01554c7>] __lock_page+0x53/0x5a [<c0155bc4>] do_generic_mapping_read+0x1cd/0x41e [<c01578a3>] generic_file_aio_read+0x16a/0x197 [<c0171441>] do_sync_read+0xc2/0xff [<c0171c51>] vfs_read+0xad/0x136 [<c0172084>] sys_read+0x3d/0x61 [<c0104164>] syscall_call+0x7/0xb ======================= Code: 75 04 0f 0b eb fe 48 89 46 0c 85 c0 0f 85 f6 00 00 00 8b 7e 1c c7 46 1c 00 00 00 00 8d 46 14 89 45 e0 39 46 14 0f 84 c3 00 00 00 <8b> 87 08 01 00 00 e8 c8 62 13 00 c7 45 e4 00 00 00 00 8b 5e 14 EIP: [<c01df352>] blk_unplug_current+0x4d/0x132 SS:ESP 0068:f6eabaf8
0xc01df352 is in blk_unplug_current (block/ll_rw_blk.c:3739). 3734 ioc->plugged_queue = NULL; 3735 if (list_empty(&ioc->plugged_list)) 3736 goto out; 3737 3738 nr_unplug = 0; 3739 spin_lock_irq(q->queue_lock); 3740 do { 3741 req = list_entry_rq(ioc->plugged_list.next); 3742 list_del_init(&req->queuelist); 3743 add_request(q, req);
------------[ cut here ]------------ kernel BUG at block/ll_rw_blk.c:2781! invalid opcode: 0000 [#1] PREEMPT SMP last sysfs file: /block/hdd/dev Modules linked in: snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm skge evdev snd_timer snd intel_agp sk98lin soundcore agpgart snd_page_alloc i2c_i801 8139too mii ide_cd cdrom rtc unix CPU: 1 EIP: 0060:[<c01e11ee>] Not tainted VLI EFLAGS: 00010282 (2.6.20 #8) EIP is at bio_attempt_back_merge+0x1b/0xb2 eax: f7cb92c8 ebx: f7d32d60 ecx: f7d32d60 edx: f7fbf074 esi: f7fbf074 edi: f7cb92c8 ebp: f6f31ba8 esp: f6f31b88 ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Process vol_id (pid: 1320, ti=f6f31000 task=f6deca80 task.ti=f6f31000) Stack: f7cb92c8 f7fb007b f7d3007b c61e00d8 ffffff10 f7fbf074 f7cb92c8 c61ed89c f6f31be0 c01e2855 f6f31bbc c031591f f7e032b0 f6f31c28 c016d6ec 00000000 f7d32d60 f7d32d60 f7fbf074 00000008 f7d32d60 00000000 f6f31c50 c01e0295 Call Trace: [<c010513d>] show_trace_log_lvl+0x1a/0x2f [<c01051ef>] show_stack_log_lvl+0x9d/0xa5 [<c01053e4>] show_registers+0x1ed/0x32c [<c0105640>] die+0x11d/0x234 [<c01057d0>] do_trap+0x79/0x91 [<c0106060>] do_invalid_op+0x97/0xa1 [<c0315cac>] error_code+0x7c/0x84 [<c01e2855>] __make_request+0xcf/0x2e6 [<c01e0295>] generic_make_request+0x205/0x215 [<c01e2448>] submit_bio+0xf0/0xf8 [<c018d607>] submit_bh+0xbf/0xdc [<c018fc1f>] block_read_full_page+0x25e/0x26e [<c01915e1>] blkdev_readpage+0xf/0x11 [<c015af00>] __do_page_cache_readahead+0x16f/0x1c0 [<c015af9e>] blockable_page_cache_readahead+0x4d/0xa0 [<c015b1b5>] page_cache_readahead+0x128/0x18f [<c0155b27>] do_generic_mapping_read+0x130/0x41e [<c01578a3>] generic_file_aio_read+0x16a/0x197 [<c0171441>] do_sync_read+0xc2/0xff [<c0171c51>] vfs_read+0xad/0x136 [<c0172084>] sys_read+0x3d/0x61 [<c0104164>] syscall_call+0x7/0xb ======================= Code: ff ff ff e9 2c ff ff ff 83 c4 2c 5b 5e 5f 5d c3 55 89 e5 57 56 53 83 ec 14 89 c7 89 d6 89 cb f6 42 14 d8 75 06 83 7a 18 01 74 04 <0f> 0b eb fe e8 62 e3 ff ff 31 d2 85 c0 74 7e 8b bf ac 01 00 00 EIP: [<c01e11ee>] bio_attempt_back_merge+0x1b/0xb2 SS:ESP 0068:f6f31b88
0xc01e11ee is in bio_attempt_back_merge (block/ll_rw_blk.c:2781). 2776 } 2777 2778 static int bio_attempt_back_merge(request_queue_t *q, struct request *req, 2779 struct bio *bio) 2780 { 2781 BUG_ON(!rq_mergeable(req)); 2782 2783 if (!ll_back_merge_fn(q, req, bio)) 2784 return 0; 2785
Regards, Michal
-- Michal K. K. Piotrowski LTG - Linux Testers Group (PL) (http://www.stardust.webpages.pl/ltg/) LTG - Linux Testers Group (EN) (http://www.stardust.webpages.pl/linux_testers_group_en/) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |