On Thu, 2008-01-31 at 15:01 +0100, Eric Sesterhenn wrote: > hi, > > while running a modified version of fsfuzzer i triggered the BUG() in > ext4_mb_release_inode_pa(). Sadly I am not able to reproduce this using > the generated image, but running the fuzzer will usually trigger this in > less than 40 attempts. Increasing the JBD2 Debug level didnt give more > information. The kernel is current git with > ext4-fix-null-pointer-deref-in-journal_wait_on_commit_record.patch > applied. > > Greetings, Eric > Thanks for reporting this. > [ 1570.971980] EXT4-fs error (device loop0) in ext4_reserve_inode_write: Journal has aborted Is there any more info about why jbd has aborted? > [ 1570.972077] pa c6512330: logic 16, phys. 2337, len 16 > [ 1570.972103] free 2, pa_free 1 looks like free!=pa_free. Aneesh, could you take a look? Thanks! Mingming > [ 1570.972191] ------------[ cut here ]------------ > [ 1570.972217] kernel BUG at fs/ext4/mballoc.c:3752! > [ 1570.972241] invalid opcode: 0000 [#1] PREEMPT DEBUG_PAGEALLOC > [ 1570.972386] Modules linked in: > [ 1570.972425] > [ 1570.972509] Pid: 6629, comm: fstest Not tainted (2.6.24-05749-g8af03e7-dirty #19) > [ 1570.972534] EIP: 0060:[<c02266b9>] EFLAGS: 00010202 CPU: 0 > [ 1570.972570] EIP is at ext4_mb_release_inode_pa+0x169/0x1a0 > [ 1570.972595] EAX: 00000001 EBX: 00000930 ECX: 00000001 EDX: 00000001 > [ 1570.972678] ESI: 00000930 EDI: c6512330 EBP: cb638b28 ESP: cb638a84 > [ 1570.972703] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 > [ 1570.972728] Process fstest (pid: 6629, ti=cb638000 task=cb698000 task.ti=cb638000) > [ 1570.972751] Stack: c07c21bb 00000002 00000001 00000921 00000010 cbff34e0 cb638b54 00000002 > [ 1570.972899] cb5fa430 c64824a0 cb5fb920 00000022 cbff34e0 cb638ad4 00000246 00000400 > [ 1570.972899] cbfa2000 cb5fb920 cbff34e0 00000000 0000092e 00000000 00000002 cbfa2000 > [ 1570.972899] Call Trace: > [ 1570.972899] [<c020e3a4>] ? read_block_bitmap+0x54/0x120 > [ 1570.972899] [<c022bd24>] ? ext4_mb_discard_inode_preallocations+0x124/0x300 > [ 1570.972899] [<c022bda5>] ? ext4_mb_discard_inode_preallocations+0x1a5/0x300 > [ 1570.972899] [<c0223577>] ? ext4_ext_get_blocks+0x3a7/0x4b0 > [ 1570.972899] [<c0213928>] ? ext4_get_blocks_wrap+0xe8/0x130 > [ 1570.972899] [<c0213bce>] ? ext4_get_block+0x7e/0xf0 > [ 1570.972899] [<c019d7ba>] ? __block_prepare_write+0x17a/0x3a0 > [ 1570.972899] [<c019da68>] ? block_write_begin+0x48/0xe0 > [ 1570.972899] [<c0213b50>] ? ext4_get_block+0x0/0xf0 > [ 1570.972899] [<c0215127>] ? ext4_write_begin+0xb7/0x190 > [ 1570.972899] [<c0213b50>] ? ext4_get_block+0x0/0xf0 > [ 1570.972899] [<c01557e9>] ? generic_perform_write+0xa9/0x190 > [ 1570.972899] [<c01575bd>] ? generic_file_buffered_write+0x6d/0x130 > [ 1570.972899] [<c01578c1>] ? __generic_file_aio_write_nolock+0x241/0x550 > [ 1570.972899] [<c0144b44>] ? trace_hardirqs_on+0xc4/0x150 > [ 1570.972899] [<c0157c2c>] ? generic_file_aio_write+0x5c/0xd0 > [ 1570.972899] [<c015ab0d>] ? free_one_page+0x1ed/0x220 > [ 1570.972899] [<c0210410>] ? ext4_file_write+0x50/0x160 > [ 1570.972899] [<c017b11d>] ? do_sync_write+0xcd/0x110 > [ 1570.972899] [<c01096f9>] ? native_sched_clock+0x69/0xc0 > [ 1570.972899] [<c01373c0>] ? autoremove_wake_function+0x0/0x50 > [ 1570.972899] [<c01070e5>] ? do_softirq+0x55/0xd0 > [ 1570.972899] [<c01050d3>] ? restore_nocheck+0x12/0x15 > [ 1570.972899] [<c0144b44>] ? trace_hardirqs_on+0xc4/0x150 > [ 1570.972899] [<c017b959>] ? vfs_write+0x99/0x130 > [ 1570.972899] [<c017b050>] ? do_sync_write+0x0/0x110 > [ 1570.972899] [<c017c048>] ? sys_pwrite64+0x68/0x70 > [ 1570.972899] [<c0104fea>] ? sysenter_past_esp+0x5f/0xa5 > [ 1570.972899] ======================= > [ 1570.972899] Code: ff 0f b7 47 4e 89 44 24 08 8b 85 78 ff ff ff c7 04 24 bb 21 7c c0 89 44 24 04 e8 c3 e0 ef ff 0f b7 47 4e 39 85 78 ff ff ff 74 07 <0f> 0b eb fe 8d 76 00 8b 85 78 ff ff ff 8b 95 7c ff ff ff 01 82 > [ 1570.972899] EIP: [<c02266b9>] ext4_mb_release_inode_pa+0x169/0x1a0 SS:ESP 0068:cb638a84 > [ 1570.972942] ---[ end trace 51819e80cd9431da ]--- > [ 1570.972969] note: fstest[6629] exited with preempt_count 1 > [ 1570.973013] BUG: sleeping function called from invalid context at kernel/rwsem.c:21 > [ 1570.973039] in_atomic():1, irqs_disabled():0 > [ 1570.973077] INFO: lockdep is turned off. > [ 1570.973104] Pid: 6629, comm: fstest Tainted: G D 2.6.24-05749-g8af03e7-dirty #19 > [ 1570.973159] [<c011e1a6>] __might_sleep+0xc6/0xf0 > [ 1570.973224] [<c06b2c99>] down_read+0x19/0x80 > [ 1570.973295] [<c013a7fd>] ? hrtimer_try_to_cancel+0x3d/0x80 > [ 1570.973396] [<c0125a27>] exit_mm+0x27/0xd0 > [ 1570.973467] [<c01272f3>] do_exit+0x133/0x2e0 > [ 1570.973529] [<c010611c>] die+0x13c/0x140 > [ 1570.973590] [<c0135197>] ? search_exception_tables+0x27/0x30 > [ 1570.973993] [<c01061b1>] do_trap+0x91/0xc0 > [ 1570.974054] [<c0106440>] ? do_invalid_op+0x0/0xa0 > [ 1570.974133] [<c01064c9>] do_invalid_op+0x89/0xa0 > [ 1570.974195] [<c02266b9>] ? ext4_mb_release_inode_pa+0x169/0x1a0 > [ 1570.974290] [<c012007b>] ? account_system_time+0x9b/0xd0 > [ 1570.974370] [<c01245de>] ? vprintk+0x1ce/0x360 > [ 1570.974465] [<c06b4492>] error_code+0x6a/0x70 > [ 1570.974531] [<c012007b>] ? account_system_time+0x9b/0xd0 > [ 1570.974626] [<c02266b9>] ? ext4_mb_release_inode_pa+0x169/0x1a0 > [ 1570.974707] [<c020e3a4>] ? read_block_bitmap+0x54/0x120 > [ 1570.974803] [<c022bd24>] ? ext4_mb_discard_inode_preallocations+0x124/0x300 > [ 1570.975151] [<c022bda5>] ext4_mb_discard_inode_preallocations+0x1a5/0x300 > [ 1570.975221] [<c0223577>] ext4_ext_get_blocks+0x3a7/0x4b0 > [ 1570.975289] [<c0213928>] ext4_get_blocks_wrap+0xe8/0x130 > [ 1570.975352] [<c0213bce>] ext4_get_block+0x7e/0xf0 > [ 1570.975413] [<c019d7ba>] __block_prepare_write+0x17a/0x3a0 > [ 1570.975479] [<c019da68>] block_write_begin+0x48/0xe0 > [ 1570.975541] [<c0213b50>] ? ext4_get_block+0x0/0xf0 > [ 1570.975635] [<c0215127>] ext4_write_begin+0xb7/0x190 > [ 1570.975697] [<c0213b50>] ? ext4_get_block+0x0/0xf0 > [ 1570.975776] [<c01557e9>] generic_perform_write+0xa9/0x190 > [ 1570.975838] [<c01575bd>] generic_file_buffered_write+0x6d/0x130 > [ 1570.975944] [<c01578c1>] __generic_file_aio_write_nolock+0x241/0x550 > [ 1570.976007] [<c0144b44>] ? trace_hardirqs_on+0xc4/0x150 > [ 1570.976105] [<c0157c2c>] generic_file_aio_write+0x5c/0xd0 > [ 1570.976166] [<c015ab0d>] ? free_one_page+0x1ed/0x220 > [ 1570.976247] [<c0210410>] ext4_file_write+0x50/0x160 > [ 1570.976308] [<c017b11d>] do_sync_write+0xcd/0x110 > [ 1570.976372] [<c01096f9>] ? native_sched_clock+0x69/0xc0 > [ 1570.976470] [<c01373c0>] ? autoremove_wake_function+0x0/0x50 > [ 1570.976567] [<c01070e5>] ? do_softirq+0x55/0xd0 > [ 1570.976662] [<c01050d3>] ? restore_nocheck+0x12/0x15 > [ 1570.976741] [<c0144b44>] ? trace_hardirqs_on+0xc4/0x150 > [ 1570.976837] [<c017b959>] vfs_write+0x99/0x130 > [ 1570.976933] [<c017b050>] ? do_sync_write+0x0/0x110 > [ 1570.977014] [<c017c048>] sys_pwrite64+0x68/0x70 > [ 1570.977075] [<c0104fea>] sysenter_past_esp+0x5f/0xa5 > [ 1570.977137] ======================= > [ 1570.977400] BUG: scheduling while atomic: fstest/6629/0x00000002 > [ 1570.977426] INFO: lockdep is turned off. > [ 1570.977468] Pid: 6629, comm: fstest Tainted: G D 2.6.24-05749-g8af03e7-dirty #19 > [ 1570.977494] [<c0120125>] __schedule_bug+0x75/0x80 > [ 1570.977557] [<c06b1db5>] schedule+0x2d5/0x3a0 > [ 1570.977621] [<c06b3325>] rwsem_down_failed_common+0x75/0x170 > [ 1570.977684] [<c0142fde>] ? __lock_contended+0xbe/0x110 > [ 1570.977780] [<c06b343d>] rwsem_down_write_failed+0x1d/0x30 > [ 1570.977842] [<c06b34ca>] call_rwsem_down_write_failed+0x6/0x8 > [ 1570.977933] [<c06b2d81>] ? down_write+0x81/0x90 > [ 1570.978013] [<c021058c>] ? ext4_release_file+0x6c/0x80 > [ 1570.978108] [<c021058c>] ext4_release_file+0x6c/0x80 > [ 1570.978168] [<c017c484>] __fput+0xb4/0x1b0 > [ 1570.978231] [<c017c788>] fput+0x18/0x20 > [ 1570.978291] [<c0179827>] filp_close+0x47/0x70 > [ 1570.978352] [<c0125dd0>] close_files+0x70/0x80 > [ 1570.978415] [<c0125e0a>] put_files_struct+0x2a/0x60 > [ 1570.978477] [<c0125e80>] __exit_files+0x40/0x50 > [ 1570.978538] [<c0127301>] do_exit+0x141/0x2e0 > [ 1570.978600] [<c010611c>] die+0x13c/0x140 > [ 1570.978661] [<c0135197>] ? search_exception_tables+0x27/0x30 > [ 1570.978741] [<c01061b1>] do_trap+0x91/0xc0 > [ 1570.978803] [<c0106440>] ? do_invalid_op+0x0/0xa0 > [ 1570.979039] [<c01064c9>] do_invalid_op+0x89/0xa0 > [ 1570.979104] [<c02266b9>] ? ext4_mb_release_inode_pa+0x169/0x1a0 > [ 1570.979185] [<c012007b>] ? account_system_time+0x9b/0xd0 > [ 1570.979280] [<c01245de>] ? vprintk+0x1ce/0x360 > [ 1570.979360] [<c06b4492>] error_code+0x6a/0x70 > [ 1570.979423] [<c012007b>] ? account_system_time+0x9b/0xd0 > [ 1570.979519] [<c02266b9>] ? ext4_mb_release_inode_pa+0x169/0x1a0 > [ 1570.979600] [<c020e3a4>] ? read_block_bitmap+0x54/0x120 > [ 1570.979700] [<c022bd24>] ? ext4_mb_discard_inode_preallocations+0x124/0x300 > [ 1570.979797] [<c022bda5>] ext4_mb_discard_inode_preallocations+0x1a5/0x300 > [ 1570.979861] [<c0223577>] ext4_ext_get_blocks+0x3a7/0x4b0 > [ 1570.979964] [<c0213928>] ext4_get_blocks_wrap+0xe8/0x130 > [ 1570.980026] [<c0213bce>] ext4_get_block+0x7e/0xf0 > [ 1570.980087] [<c019d7ba>] __block_prepare_write+0x17a/0x3a0 > [ 1570.980153] [<c019da68>] block_write_begin+0x48/0xe0 > [ 1570.980215] [<c0213b50>] ? ext4_get_block+0x0/0xf0 > [ 1570.980309] [<c0215127>] ext4_write_begin+0xb7/0x190 > [ 1570.980371] [<c0213b50>] ? ext4_get_block+0x0/0xf0 > [ 1570.980450] [<c01557e9>] generic_perform_write+0xa9/0x190 > [ 1570.980513] [<c01575bd>] generic_file_buffered_write+0x6d/0x130 > [ 1570.980576] [<c01578c1>] __generic_file_aio_write_nolock+0x241/0x550 > [ 1570.980639] [<c0144b44>] ? trace_hardirqs_on+0xc4/0x150 > [ 1570.980735] [<c0157c2c>] generic_file_aio_write+0x5c/0xd0 > [ 1570.980796] [<c015ab0d>] ? free_one_page+0x1ed/0x220 > [ 1570.980932] [<c0210410>] ext4_file_write+0x50/0x160 > [ 1570.980995] [<c017b11d>] do_sync_write+0xcd/0x110 > [ 1570.981058] [<c01096f9>] ? native_sched_clock+0x69/0xc0 > [ 1570.981142] [<c01373c0>] ? autoremove_wake_function+0x0/0x50 > [ 1570.981238] [<c01070e5>] ? do_softirq+0x55/0xd0 > [ 1570.981317] [<c01050d3>] ? restore_nocheck+0x12/0x15 > [ 1570.981410] [<c0144b44>] ? trace_hardirqs_on+0xc4/0x150 > [ 1570.981491] [<c017b959>] vfs_write+0x99/0x130 > [ 1570.981552] [<c017b050>] ? do_sync_write+0x0/0x110 > [ 1570.981646] [<c017c048>] sys_pwrite64+0x68/0x70 > [ 1570.981708] [<c0104fea>] sysenter_past_esp+0x5f/0xa5 > [ 1570.981769] ======================= > - > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
