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possible deadlock in __get_super (2)

Status: auto-closed as invalid on 2022/01/29 13:10
Reported-by: syzbot+877ab0d1586baf218a59@syzkaller.appspotmail.com
First crash: 1159d, last: 1159d
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 possible deadlock in __get_super (3) 1 936d 936d 0/1 auto-obsoleted due to no activity on 2022/09/09 09:07
linux-4.19 possible deadlock in __get_super 2 1441d 1499d 0/1 auto-closed as invalid on 2021/04/22 12:47
linux-4.19 possible deadlock in __get_super (4) reiserfs C 3 662d 709d 0/1 upstream: reported C repro on 2022/12/25 20:02
linux-4.14 possible deadlock in __get_super reiserfs C 4 662d 1486d 0/1 upstream: reported C repro on 2020/11/08 14:16

Sample crash report:
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
======================================================
WARNING: possible circular locking dependency detected
4.19.208-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.5/18086 is trying to acquire lock:
000000007477e049 (&type->s_umount_key#90){++++}, at: __get_super.part.0+0x209/0x2e0 fs/super.c:698

but task is already holding lock:
00000000aea704c4 (&bdev->bd_mutex){+.+.}, at: blkdev_reread_part+0x1b/0x40 block/ioctl.c:192

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&bdev->bd_mutex){+.+.}:
       blkdev_put+0x30/0x520 fs/block_dev.c:1839
       release_journal_dev fs/reiserfs/journal.c:2601 [inline]
       free_journal_ram+0x44b/0x600 fs/reiserfs/journal.c:1904
       do_journal_release fs/reiserfs/journal.c:1970 [inline]
       journal_release+0x225/0x4d0 fs/reiserfs/journal.c:1981
       reiserfs_put_super+0xe0/0x5c0 fs/reiserfs/super.c:616
       generic_shutdown_super+0x144/0x370 fs/super.c:456
       kill_block_super+0x97/0xf0 fs/super.c:1185
       deactivate_locked_super+0x94/0x160 fs/super.c:329
       deactivate_super+0x174/0x1a0 fs/super.c:360
       cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
       task_work_run+0x148/0x1c0 kernel/task_work.c:113
       tracehook_notify_resume include/linux/tracehook.h:193 [inline]
       exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
       prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
       syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
       do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&type->s_umount_key#90){++++}:
       down_read+0x36/0x80 kernel/locking/rwsem.c:24
       __get_super.part.0+0x209/0x2e0 fs/super.c:698
       __get_super include/linux/spinlock.h:329 [inline]
       get_super+0x2b/0x50 fs/super.c:727
       fsync_bdev+0x14/0xc0 fs/block_dev.c:483
       invalidate_partition+0x74/0xb0 block/genhd.c:1592
       drop_partitions.isra.0+0x9c/0x190 block/partition-generic.c:454
       rescan_partitions+0xab/0x970 block/partition-generic.c:527
       __blkdev_reread_part+0x189/0x220 block/ioctl.c:173
       blkdev_reread_part+0x23/0x40 block/ioctl.c:193
       loop_reread_partitions drivers/block/loop.c:645 [inline]
       loop_set_status+0x103e/0x1800 drivers/block/loop.c:1330
       loop_set_status_old+0x1bb/0x250 drivers/block/loop.c:1440
       lo_ioctl+0x3b5/0x20e0 drivers/block/loop.c:1584
       __blkdev_driver_ioctl block/ioctl.c:303 [inline]
       blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601
       block_ioctl+0xe9/0x130 fs/block_dev.c:1906
       vfs_ioctl fs/ioctl.c:46 [inline]
       file_ioctl fs/ioctl.c:501 [inline]
       do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
       ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
       __do_sys_ioctl fs/ioctl.c:712 [inline]
       __se_sys_ioctl fs/ioctl.c:710 [inline]
       __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&bdev->bd_mutex);
                               lock(&type->s_umount_key#90);
                               lock(&bdev->bd_mutex);
  lock(&type->s_umount_key#90);

 *** DEADLOCK ***

1 lock held by syz-executor.5/18086:
 #0: 00000000aea704c4 (&bdev->bd_mutex){+.+.}, at: blkdev_reread_part+0x1b/0x40 block/ioctl.c:192

stack backtrace:
CPU: 1 PID: 18086 Comm: syz-executor.5 Not tainted 4.19.208-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222
 check_prev_add kernel/locking/lockdep.c:1866 [inline]
 check_prevs_add kernel/locking/lockdep.c:1979 [inline]
 validate_chain kernel/locking/lockdep.c:2420 [inline]
 __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 down_read+0x36/0x80 kernel/locking/rwsem.c:24
 __get_super.part.0+0x209/0x2e0 fs/super.c:698
 __get_super include/linux/spinlock.h:329 [inline]
 get_super+0x2b/0x50 fs/super.c:727
 fsync_bdev+0x14/0xc0 fs/block_dev.c:483
 invalidate_partition+0x74/0xb0 block/genhd.c:1592
 drop_partitions.isra.0+0x9c/0x190 block/partition-generic.c:454
 rescan_partitions+0xab/0x970 block/partition-generic.c:527
 __blkdev_reread_part+0x189/0x220 block/ioctl.c:173
 blkdev_reread_part+0x23/0x40 block/ioctl.c:193
 loop_reread_partitions drivers/block/loop.c:645 [inline]
 loop_set_status+0x103e/0x1800 drivers/block/loop.c:1330
 loop_set_status_old+0x1bb/0x250 drivers/block/loop.c:1440
 lo_ioctl+0x3b5/0x20e0 drivers/block/loop.c:1584
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601
 block_ioctl+0xe9/0x130 fs/block_dev.c:1906
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f4332abb8d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4330032188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4332bbff60 RCX: 00007f4332abb8d9
RDX: 0000000020000000 RSI: 0000000000004c02 RDI: 0000000000000003
RBP: 00007f4332b15cb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe2394b9df R14: 00007f4330032300 R15: 0000000000022000
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,8192)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(140,255)': -6
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): using ordered data mode
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(244,0)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
REISERFS (device loop2): using ordered data mode
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS (device loop4): using ordered data mode
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(244,0)': -6
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,8192)': -6
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(152,1)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(152,1)': -6
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,12288)': -6
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(245,255)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop4): using ordered data mode
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,12288)': -6
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(245,255)': -6
REISERFS (device loop3): using ordered data mode
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(152,2)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(152,2)': -6
REISERFS (device loop3): using ordered data mode
REISERFS (device loop0): using ordered data mode
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(246,255)': -6
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,8192)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(246,255)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(192,237)': -6
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,4096)': -6
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,15)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(192,237)': -6
REISERFS (device loop0): using ordered data mode
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,4096)': -6
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,15)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(196,1)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,4096)': -6
REISERFS (device loop4): using ordered data mode
REISERFS (device loop3): using ordered data mode
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS (device loop2): using ordered data mode
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(196,1)': -6
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(198,0)': -6
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
hfsplus: unable to parse mount options
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,8192)': -6
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): using ordered data mode
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop3): using ordered data mode
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop4): using ordered data mode
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,8192)': -6
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(198,0)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
hfsplus: unable to parse mount options
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
hfsplus: unable to parse mount options
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop2): using ordered data mode
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-460 journal_init: journal header magic 0 (device loop0) does not match to magic found in super block 49ad1c61
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(214,0)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop3): using ordered data mode
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop0): using ordered data mode
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
reiserfs: using flush barriers
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): using ordered data mode
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,12288)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(214,0)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,12288)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop3): using ordered data mode
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
reiserfs: using flush barriers
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(245,255)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
hfsplus: unable to parse mount options
REISERFS (device loop3): using ordered data mode
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(245,255)': -6
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(4095,1048320)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS (device loop0): using ordered data mode
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
hfsplus: unable to parse mount options
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(246,255)': -6
REISERFS (device loop3): using ordered data mode
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(4095,1048320)': -6
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,255)': -6
REISERFS warning (device loop2): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(246,255)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-460 journal_init: journal header magic 0 (device loop2) does not match to magic found in super block 49ad1c61
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(4095,1048320)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(250,0)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-460 journal_init: journal header magic 0 (device loop2) does not match to magic found in super block 49ad1c61
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): using ordered data mode
hfsplus: unable to parse mount options
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop0): using ordered data mode
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop3): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(250,0)': -6
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(4095,1048320)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
reiserfs: using flush barriers
hfsplus: unable to parse mount options
REISERFS warning (device loop2): sh-460 journal_init: journal header magic 0 (device loop2) does not match to magic found in super block 49ad1c61
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop3): using ordered data mode
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop4): using ordered data mode
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
reiserfs: using flush barriers
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(253,1)': -6
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,4096)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): using ordered data mode
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
reiserfs: using flush barriers
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,4096)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop2): using ordered data mode
REISERFS (device loop3): using ordered data mode
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop2): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop2): sh-2022 reiserfs_fill_super: unable to initialize journal space
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,2)': -6
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
hfsplus: unable to parse mount options
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop4): using ordered data mode
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS warning (device loop2):  reiserfs_fill_super: Cannot allocate commit workqueue
REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal
reiserfs: using flush barriers
REISERFS (device loop3): using ordered data mode
REISERFS warning (device loop4): sh-458 journal_init_dev: cannot init journal device 'unknown-block(255,2)': -6
reiserfs: using flush barriers
REISERFS warning (device loop4): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop3): sh-459 journal_init: unable to read journal header
REISERFS warning (device loop0): sh-458 journal_init_dev: cannot init journal device 'unknown-block(0,4096)': -6
REISERFS warning (device loop0): sh-462 journal_init: unable to initialize journal device
REISERFS warning (device loop4): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space
REISERFS warning (device loop3): sh-2022 reiserfs_fill_super: unable to initialize journal space

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/10/01 13:09 linux-4.19.y c2276d585654 1d849ab4 .config console log report info ci2-linux-4-19 possible deadlock in __get_super
* Struck through repros no longer work on HEAD.