On Mon, 07 May 2007 23:58:36 +0100 Simon Arlott <[EMAIL PROTECTED]> wrote:
> > I've just got this under mainline too now > (0ec54aa8af5e6faa346aa55a1ad15ee6c25bb42d 2007-05-05 22:08:06): > > [84567.084000] BUG: scheduling while atomic: pdflush/0xeff84acf/186 > [84567.084000] INFO: lockdep is turned off. > [84567.084000] do_IRQ: stack overflow: 440 > [84567.084000] [<b0104f3a>] show_trace_log_lvl+0x1a/0x30 > [84567.084000] [<b0104f62>] show_trace+0x12/0x20 > [84567.084000] [<b0105075>] dump_stack+0x15/0x20 > [84567.084000] [<b01069a8>] do_IRQ+0xd8/0xe0 > [84567.084000] [<b0104bd6>] common_interrupt+0x2e/0x34 > [84567.084000] [<b0120a28>] printk+0x18/0x20 > [84567.084000] [<b0140b33>] debug_show_held_locks+0x23/0x30 > [84567.084000] [<b04e7fea>] schedule+0x52a/0x680 > [84567.084000] [<b04e8a0a>] schedule_timeout+0x8a/0x90 > [84567.084000] [<b026c61e>] xlog_state_sync+0x21e/0x260 > [84567.084000] [<b0269274>] _xfs_log_force+0x44/0x70 > [84567.084000] [<b022dd22>] xfs_alloc_search_busy+0xd2/0xe0 > [84567.084000] [<b022d1e6>] xfs_alloc_get_freelist+0xe6/0x100 > [84567.084000] [<b022fb7f>] xfs_alloc_split+0x1f/0x4c0 > [84567.084000] [<b022ec3d>] xfs_alloc_insrec+0x35d/0x3b0 > [84567.084000] [<b02304f9>] xfs_alloc_insert+0x59/0xd0 > [84567.084000] [<b022c847>] xfs_free_ag_extent+0x297/0x640 > [84567.084000] [<b022ce11>] xfs_alloc_fix_freelist+0x1d1/0x4c0 > [84567.084000] [<b022d73b>] xfs_alloc_vextent+0x1eb/0x4b0 > [84567.084000] [<b023d4bb>] xfs_bmap_btalloc+0x3bb/0x8f0 > [84567.084000] [<b023da11>] xfs_bmap_alloc+0x21/0x40 > [84567.084000] [<b02411bf>] xfs_bmapi+0xdbf/0x1450 > [84567.084000] [<b0266b4a>] xfs_iomap_write_allocate+0x2ba/0x520 > [84567.084000] [<b026587b>] xfs_iomap+0x45b/0x470 > [84567.084000] [<b028d85c>] xfs_bmap+0x2c/0x40 > [84567.084000] [<b0284a0c>] xfs_map_blocks+0x3c/0x80 > [84567.084000] [<b0285953>] xfs_page_state_convert+0x2f3/0x670 > [84567.084000] [<b0285d2a>] xfs_vm_writepage+0x5a/0xf0 > [84567.084000] [<b01539a6>] generic_writepages+0x226/0x360 > [84567.084000] [<b0285de4>] xfs_vm_writepages+0x24/0x60 > [84567.084000] [<b0153b0c>] do_writepages+0x2c/0x50 > [84567.084000] [<b01887d9>] __sync_single_inode+0x59/0x1f0 > [84567.084000] [<b01889b4>] __writeback_single_inode+0x44/0x1d0 > [84567.084000] [<b0188d09>] sync_sb_inodes+0x1c9/0x2e0 > [84567.084000] [<b0188eee>] writeback_inodes+0xce/0xe0 > [84567.084000] [<b01535c3>] wb_kupdate+0x73/0xf0 > [84567.084000] [<b015419e>] __pdflush+0xce/0x1a0 > [84567.084000] [<b0154295>] pdflush+0x25/0x30 > [84567.084000] [<b01342b4>] kthread+0x94/0xd0 > [84567.084000] [<b0104d7b>] kernel_thread_helper+0x7/0x1c > [84567.084000] ======================= > [84567.087000] [<b0104f3a>] show_trace_log_lvl+0x1a/0x30 > [84567.087000] [<b0104f62>] do_IRQ: stack overflow: 328 > [84567.087000] [<b0104f3a>] show_trace_log_lvl+0x1a/0x30 > [84567.087000] [<b0104f62>] show_trace+0x12/0x20 > [84567.087000] [<b0105075>] dump_stack+0x15/0x20 > [84567.087000] [<b01069a8>] do_IRQ+0xd8/0xe0 > [84567.087000] [<b0104bd6>] common_interrupt+0x2e/0x34 > [84567.087000] [<b0120a28>] printk+0x18/0x20 > [84567.087000] [<b0104f0d>] print_trace_address+0x1d/0x30 > [84567.087000] [<b0104e18>] dump_trace+0x48/0xb0 > [84567.087000] [<b0104f3a>] show_trace_log_lvl+0x1a/0x30 > [84567.087000] [<b0104f62>] show_trace+0x12/0x20 > [84567.087000] [<b0105075>] dump_stack+0x15/0x20 > [84567.087000] [<b04e7ffa>] schedule+0x53a/0x680 > [84567.087000] [<b04e8a0a>] schedule_timeout+0x8a/0x90 > [84567.087000] [<b026c61e>] xlog_state_sync+0x21e/0x260 > [84567.087000] [<b0269274>] _xfs_log_force+0x44/0x70 > [84567.087000] [<b022dd22>] xfs_alloc_search_busy+0xd2/0xe0 > [84567.087000] [<b022d1e6>] xfs_alloc_get_freelist+0xe6/0x100 > [84567.087000] [<b022fb7f>] xfs_alloc_split+0x1f/0x4c0 > [84567.087000] [<b022ec3d>] xfs_alloc_insrec+0x35d/0x3b0 > [84567.087000] [<b02304f9>] xfs_alloc_insert+0x59/0xd0 > [84567.087000] [<b022c847>] xfs_free_ag_extent+0x297/0x640 > [84567.087000] [<b022ce11>] xfs_alloc_fix_freelist+0x1d1/0x4c0 > [84567.087000] [<b022d73b>] xfs_alloc_vextent+0x1eb/0x4b0 > [84567.087000] [<b023d4bb>] xfs_bmap_btalloc+0x3bb/0x8f0 > [84567.087000] [<b023da11>] xfs_bmap_alloc+0x21/0x40 > [84567.087000] [<b02411bf>] xfs_bmapi+0xdbf/0x1450 > [84567.087000] [<b0266b4a>] xfs_iomap_write_allocate+0x2ba/0x520 > [84567.087000] [<b026587b>] xfs_iomap+0x45b/0x470 > [84567.087000] [<b028d85c>] xfs_bmap+0x2c/0x40 > [84567.087000] [<b0284a0c>] xfs_map_blocks+0x3c/0x80 > [84567.087000] [<b0285953>] xfs_page_state_convert+0x2f3/0x670 > [84567.087000] [<b0285d2a>] xfs_vm_writepage+0x5a/0xf0 > [84567.087000] [<b01539a6>] generic_writepages+0x226/0x360 > [84567.087000] [<b0285de4>] xfs_vm_writepages+0x24/0x60 > [84567.087000] [<b0153b0c>] do_writepages+0x2c/0x50 > [84567.087000] [<b01887d9>] __sync_single_inode+0x59/0x1f0 > [84567.087000] [<b01889b4>] __writeback_single_inode+0x44/0x1d0 > [84567.087000] [<b0188d09>] sync_sb_inodes+0x1c9/0x2e0 > [84567.087000] [<b0188eee>] writeback_inodes+0xce/0xe0 > [84567.087000] [<b01535c3>] wb_kupdate+0x73/0xf0 > [84567.087000] [<b015419e>] __pdflush+0xce/0x1a0 > [84567.087000] [<b0154295>] pdflush+0x25/0x30 > [84567.087000] [<b01342b4>] kthread+0x94/0xd0 > [84567.087000] [<b0104d7b>] kernel_thread_helper+0x7/0x1c > [84567.087000] BUG: unable to handle kernel paging request at virtual address > 00008034 > [84567.087000] printing eip: > [84567.087000] b0104e36 > [84567.087000] *pde = 00000000 > [84567.087000] Oops: 0000 [#1] > [84567.087000] PREEMPT > [84567.087000] Modules linked in: drbd mt352 saa7134_dvb dvb_pll > video_buf_dvb dvb_core > [84567.087000] CPU: 0 > [84567.087000] EIP: 0060:[<b0104e36>] Not tainted VLI > [84567.087000] EFLAGS: 00010046 (2.6.21-git #197) > [84567.087000] EIP is at dump_trace+0x66/0xb0 > [84567.087000] eax: 00000000 ebx: b18f6fe0 ecx: b06323ec edx: b05afc71 > [84567.087000] esi: 00008000 edi: 00008ffd ebp: b18f6138 esp: b18f6120 > [84567.087000] ds: 007b es: 007b fs: 0000 gs: 0000 ss: 0068 > [84567.087000] Process pdflush (pid: 186, ti=b18f5000 task=eff84ad0 > task.ti=b18f6000) > [84567.087000] Stack: b18f6130 b04ea9af 00000001 b05b9937 0000000a b06d656e > b18f6158 b0104f3a > [84567.087000] b06323ec b05b9937 00000000 b06356a8 b18f6160 b18f622a > b18f6168 b0104f62 > [84567.087000] b05b9937 b06d656e b18f6178 b0105075 b05afeac b18f6184 > b18f61a8 b01069a8 > [84567.087000] Call Trace: > [84567.087000] BUG: unable to handle kernel NULL pointer dereference at > virtual address 00000034 > [84567.087000] printing eip: > [84567.087000] b0104e36 > [84567.087000] *pde = 00000000 > [84567.087000] Oops: 0000 [#2] > [84567.087000] PREEMPT > [84567.087000] Modules linked in: drbd mt352 saa7134_dvb dvb_pll > video_buf_dvb dvb_core > [84567.087000] CPU: 0 > [84567.087000] EIP: 0060:[<b0104e36>] Not tainted VLI > [84567.087000] EFLAGS: 00010046 (2.6.21-git #197) > [84567.087000] EIP is at dump_trace+0x66/0xb0 > [84567.087000] eax: 00000000 ebx: b18f5f60 ecx: b06323ec edx: b05afc71 > [84567.087000] esi: 00000000 edi: 00000ffd ebp: b18f5f60 esp: b18f5f48 > [84567.087000] ds: 007b es: 007b fs: 0000 gs: 0000 ss: 0068 > [84567.087000] Process pdflush (pid: 186, ti=b18f5000 task=eff84ad0 > task.ti=b18f6000) > [84567.087000] Stack: 5b3e303c 36353438 38302e37 b05afcde 00000018 00000000 > b18f5f80 b0104f3a > [84567.087000] b06323ec b05afcde > > Then it just gave up doing anything sane, presumably because of the stack > overflow in do_IRQ: > http://redrum.lp0.eu/tmp/100_4037.jpg > http://redrum.lp0.eu/tmp/100_4038.jpg > ugly. And you're using 8k stacks? The way we'll fix this is to wait for someone to do a git-bisect on it. Perhaps you can do that? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
