[ 6.881473] =================================================== [ 6.881474] DEPT: Circular dependency has been detected. [ 6.881475] 5.17.0-rc1-00014-gcf3441bb2012 #2 Tainted: G W [ 6.881476] --------------------------------------------------- [ 6.881476] summary [ 6.881477] --------------------------------------------------- [ 6.881478] *** DEADLOCK *** [ 6.881478] [ 6.881478] context A [ 6.881479] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0) [ 6.881480] [W] __raw_read_lock(&journal->j_state_lock:8) [ 6.881481] [E] event(&(&journal->j_wait_commit)->dmap:0) [ 6.881482] [ 6.881483] context B [ 6.881483] [S] __raw_write_lock(&journal->j_state_lock:8) [ 6.881484] [W] wait(&(&journal->j_wait_commit)->dmap:0) [ 6.881485] [E] write_unlock(&journal->j_state_lock:8) [ 6.881486] [ 6.881487] [S]: start of the event context [ 6.881487] [W]: the wait blocked [ 6.881488] [E]: the event not reachable [ 6.881489] --------------------------------------------------- [ 6.881489] context A's detail [ 6.881490] --------------------------------------------------- [ 6.881490] context A [ 6.881491] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0) [ 6.881492] [W] __raw_read_lock(&journal->j_state_lock:8) [ 6.881493] [E] event(&(&journal->j_wait_commit)->dmap:0) [ 6.881494] [ 6.881495] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0): [ 6.881496] (N/A) [ 6.881496] [ 6.881497] [W] __raw_read_lock(&journal->j_state_lock:8): [ 6.881498] [<ffffffff8133cd87>] start_this_handle+0xa7/0x5e0 [ 6.881500] stacktrace: [ 6.881500] _raw_read_lock+0x57/0xd0 [ 6.881502] start_this_handle+0xa7/0x5e0 [ 6.881504] jbd2__journal_start+0xe6/0x220 [ 6.881506] __ext4_journal_start_sb+0x11c/0x150 [ 6.881508] ext4_truncate+0x167/0x4b0 [ 6.881509] ext4_da_write_begin+0x19c/0x2a0 [ 6.881511] generic_perform_write+0xa6/0x1c0 [ 6.881512] ext4_buffered_write_iter+0x89/0x100 [ 6.881515] ext4_file_write_iter+0x4a/0x7f0 [ 6.881516] new_sync_write+0x100/0x190 [ 6.881518] vfs_write+0x134/0x360 [ 6.881521] ksys_write+0x4d/0xc0 [ 6.881522] do_syscall_64+0x3a/0x90 [ 6.881523] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 6.881525] [ 6.881526] [E] event(&(&journal->j_wait_commit)->dmap:0): [ 6.881527] [<ffffffff810baa53>] __wake_up_common+0x93/0x1a0 [ 6.881529] stacktrace: [ 6.881529] dept_event+0x12b/0x1f0 [ 6.881531] __wake_up_common+0xb0/0x1a0 [ 6.881532] __wake_up_common_lock+0x65/0x90 [ 6.881533] __jbd2_log_start_commit+0x8a/0xa0 [ 6.881535] jbd2_log_start_commit+0x24/0x40 [ 6.881536] __jbd2_journal_force_commit+0x91/0xb0 [ 6.881538] jbd2_journal_force_commit_nested+0x5/0x10 [ 6.881540] ext4_should_retry_alloc+0x5b/0xb0 [ 6.881541] ext4_da_write_begin+0xf2/0x2a0 [ 6.881543] generic_perform_write+0xa6/0x1c0 [ 6.881544] ext4_buffered_write_iter+0x89/0x100 [ 6.881546] ext4_file_write_iter+0x4a/0x7f0 [ 6.881548] new_sync_write+0x100/0x190 [ 6.881550] vfs_write+0x134/0x360 [ 6.881552] ksys_write+0x4d/0xc0 [ 6.881553] do_syscall_64+0x3a/0x90 [ 6.881555] --------------------------------------------------- [ 6.881556] context B's detail [ 6.881556] --------------------------------------------------- [ 6.881557] context B [ 6.881558] [S] __raw_write_lock(&journal->j_state_lock:8) [ 6.881559] [W] wait(&(&journal->j_wait_commit)->dmap:0) [ 6.881560] [E] write_unlock(&journal->j_state_lock:8) [ 6.881561] [ 6.881561] [S] __raw_write_lock(&journal->j_state_lock:8): [ 6.881562] [<ffffffff81346e9e>] kjournald2+0x7e/0x260 [ 6.881564] stacktrace: [ 6.881564] _raw_write_lock+0x6e/0x90 [ 6.881566] kjournald2+0x7e/0x260 [ 6.881567] kthread+0xe3/0x110 [ 6.881569] ret_from_fork+0x22/0x30 [ 6.881571] [ 6.881572] [W] wait(&(&journal->j_wait_commit)->dmap:0): [ 6.881573] [<ffffffff810bb017>] prepare_to_wait+0x47/0xd0 [ 6.881574] stacktrace: [ 6.881575] kjournald2+0x164/0x260 [ 6.881576] kthread+0xe3/0x110 [ 6.881578] ret_from_fork+0x22/0x30 [ 6.881579] [ 6.881580] [E] write_unlock(&journal->j_state_lock:8): [ 6.881581] [<ffffffff8134700b>] kjournald2+0x1eb/0x260 [ 6.881582] stacktrace: [ 6.881583] _raw_write_unlock+0x30/0x70 [ 6.881585] kjournald2+0x1eb/0x260 [ 6.881586] kthread+0xe3/0x110 [ 6.881588] ret_from_fork+0x22/0x30 [ 6.881589] --------------------------------------------------- [ 6.881590] information that might be helpful [ 6.881590] --------------------------------------------------- [ 6.881591] CPU: 2 PID: 628 Comm: rs:main Q:Reg Tainted: G W 5.17.0-rc1-00014-gcf3441bb2012 #2 [ 6.881593] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 6.881594] Call Trace: [ 6.881595] <TASK> [ 6.881596] dump_stack_lvl+0x44/0x57 [ 6.881597] print_circle+0x384/0x510 [ 6.881599] ? __kernel_text_address+0x9/0x30 [ 6.881601] ? print_circle+0x510/0x510 [ 6.881603] cb_check_dl+0x58/0x60 [ 6.881605] bfs+0xdc/0x1b0 [ 6.881607] add_dep+0x94/0x120 [ 6.881609] do_event.isra.22+0x284/0x300 [ 6.881611] ? __wake_up_common+0x93/0x1a0 [ 6.881612] dept_event+0x12b/0x1f0 [ 6.881615] __wake_up_common+0xb0/0x1a0 [ 6.881617] __wake_up_common_lock+0x65/0x90 [ 6.881619] __jbd2_log_start_commit+0x8a/0xa0 [ 6.881621] jbd2_log_start_commit+0x24/0x40 [ 6.881622] __jbd2_journal_force_commit+0x91/0xb0 [ 6.881624] jbd2_journal_force_commit_nested+0x5/0x10 [ 6.881626] ext4_should_retry_alloc+0x5b/0xb0 [ 6.881628] ext4_da_write_begin+0xf2/0x2a0 [ 6.881630] generic_perform_write+0xa6/0x1c0 [ 6.881633] ext4_buffered_write_iter+0x89/0x100 [ 6.881636] ext4_file_write_iter+0x4a/0x7f0 [ 6.881638] new_sync_write+0x100/0x190 [ 6.881642] vfs_write+0x134/0x360 [ 6.881644] ksys_write+0x4d/0xc0 [ 6.881645] ? trace_hardirqs_on+0x38/0xe0 [ 6.881648] do_syscall_64+0x3a/0x90 [ 6.881650] entry_SYSCALL_64_after_hwframe+0x44/0xae
