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Message-ID: <CAE5jQCc3hrq6E-Ff1oiYUOSDA08PMrqnu80XQtaD5adcUQvV8w@mail.gmail.com>
Date: Sun, 28 Oct 2018 20:50:46 +0300
From: Anatoly Trosinenko <anatoly.trosinenko@...il.com>
To: "Darrick J. Wong" <darrick.wong@...cle.com>
Cc: linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: XFS: Hang and dmesg flood on mounting invalid FS image
Hello,
When mounting a broken XFS image, the kernel hangs and floods dmesg
with stack traces.
How to reproduce with kvm-xfstests:
1) Checkout v4.19, copy x86_64-config-4.14 to .config, `make
olddefconfig` and compile
2) Unpack the attached image (128 Mb uncompressed) to /tmp/kvm-xfstests-$USER
3) Inside the `kvm-xfstests shell`:
root@...-xfstests:~# mount /vtmp
root@...-xfstests:~# mount /vtmp/xfs.img /mnt
[ 39.280840] XFS (loop0): Mounting V5 Filesystem
[ 39.303657] XFS (loop0): Internal error xlog_valid_rec_header(2) at
line 5283 of file fs/xfs/xfs_log_recover.c. Caller
xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.304886] CPU: 0 PID: 373 Comm: mount Not tainted 4.19.0-xfstests #1
[ 39.305491] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.11.1-1ubuntu1 04/01/2014
[ 39.306247] Call Trace:
[ 39.306464] dump_stack+0x85/0xc0
[ 39.306751] xlog_valid_rec_header.isra.6+0xd5/0xe0
[ 39.307250] xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.307624] ? xlog_bread_noalign+0x98/0x110
[ 39.307983] ? xlog_bread_noalign+0x98/0x110
[ 39.308344] xlog_verify_head+0xab/0x190
[ 39.308675] xlog_find_tail+0x208/0x350
[ 39.308999] xlog_recover+0x2b/0x160
[ 39.309307] xfs_log_mount+0x280/0x2a0
[ 39.309625] xfs_mountfs+0x42f/0x890
[ 39.309928] ? xfs_mru_cache_create+0x18b/0x1f0
[ 39.310309] xfs_fs_fill_super+0x4f8/0x6d0
[ 39.310655] ? xfs_test_remount_options+0x60/0x60
[ 39.311050] mount_bdev+0x17f/0x1b0
[ 39.311347] mount_fs+0x3b/0x170
[ 39.311624] ? __init_waitqueue_head+0x36/0x50
[ 39.311999] vfs_kern_mount.part.16+0x54/0x160
[ 39.312374] do_mount+0x20e/0xdf0
[ 39.312657] ? memdup_user+0x3e/0x70
[ 39.312961] __ia32_compat_sys_mount+0xa3/0x140
[ 39.313346] do_fast_syscall_32+0x9d/0x2f0
[ 39.313694] entry_SYSENTER_compat+0x84/0x96
[ 39.314126] XFS (loop0): Torn write (CRC failure) detected at log
block 0xaaf. Truncating head block from 0xab7.
[ 39.316912] XFS (loop0): Internal error xlog_valid_rec_header(2) at
line 5283 of file fs/xfs/xfs_log_recover.c. Caller
xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.318057] CPU: 0 PID: 373 Comm: mount Not tainted 4.19.0-xfstests #1
[ 39.318601] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.11.1-1ubuntu1 04/01/2014
[ 39.319339] Call Trace:
[ 39.319552] dump_stack+0x85/0xc0
[ 39.319834] xlog_valid_rec_header.isra.6+0xd5/0xe0
[ 39.320244] xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.320618] ? xlog_bread_noalign+0x98/0x110
[ 39.320979] ? xlog_bread_noalign+0x98/0x110
[ 39.321344] xlog_verify_tail+0x144/0x1e0
[ 39.321686] xlog_verify_head+0xd4/0x190
[ 39.322021] xlog_find_tail+0x208/0x350
[ 39.322348] xlog_recover+0x2b/0x160
[ 39.322654] xfs_log_mount+0x280/0x2a0
[ 39.322974] xfs_mountfs+0x42f/0x890
[ 39.323280] ? xfs_mru_cache_create+0x18b/0x1f0
[ 39.323664] xfs_fs_fill_super+0x4f8/0x6d0
[ 39.324013] ? xfs_test_remount_options+0x60/0x60
[ 39.324411] mount_bdev+0x17f/0x1b0
[ 39.324710] mount_fs+0x3b/0x170
[ 39.324988] ? __init_waitqueue_head+0x36/0x50
[ 39.325369] vfs_kern_mount.part.16+0x54/0x160
[ 39.325747] do_mount+0x20e/0xdf0
[ 39.326063] ? memdup_user+0x3e/0x70
[ 39.326369] __ia32_compat_sys_mount+0xa3/0x140
[ 39.326753] do_fast_syscall_32+0x9d/0x2f0
[ 39.327101] entry_SYSENTER_compat+0x84/0x96
[ 39.328873] XFS (loop0): Internal error xlog_valid_rec_header(2) at
line 5283 of file fs/xfs/xfs_log_recover.c. Caller
xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.330024] CPU: 0 PID: 373 Comm: mount Not tainted 4.19.0-xfstests #1
[ 39.330574] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.11.1-1ubuntu1 04/01/2014
[ 39.331349] Call Trace:
[ 39.331565] dump_stack+0x85/0xc0
[ 39.331850] xlog_valid_rec_header.isra.6+0xd5/0xe0
[ 39.332264] xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.332642] ? xlog_bread_noalign+0x98/0x110
[ 39.333005] ? xlog_bread_noalign+0x98/0x110
[ 39.333371] xlog_verify_tail+0x144/0x1e0
[ 39.333713] xlog_verify_head+0xd4/0x190
[ 39.334048] xlog_find_tail+0x208/0x350
[ 39.334376] xlog_recover+0x2b/0x160
[ 39.334682] xfs_log_mount+0x280/0x2a0
[ 39.335003] xfs_mountfs+0x42f/0x890
[ 39.335309] ? xfs_mru_cache_create+0x18b/0x1f0
[ 39.335693] xfs_fs_fill_super+0x4f8/0x6d0
[ 39.336041] ? xfs_test_remount_options+0x60/0x60
[ 39.336439] mount_bdev+0x17f/0x1b0
[ 39.336739] mount_fs+0x3b/0x170
[ 39.337016] ? __init_waitqueue_head+0x36/0x50
[ 39.337396] vfs_kern_mount.part.16+0x54/0x160
[ 39.337774] do_mount+0x20e/0xdf0
[ 39.338059] ? memdup_user+0x3e/0x70
[ 39.338365] __ia32_compat_sys_mount+0xa3/0x140
[ 39.338749] do_fast_syscall_32+0x9d/0x2f0
[ 39.339098] entry_SYSENTER_compat+0x84/0x96
[ 39.340891] XFS (loop0): Internal error xlog_valid_rec_header(2) at
line 5283 of file fs/xfs/xfs_log_recover.c. Caller
xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.342084] CPU: 0 PID: 373 Comm: mount Not tainted 4.19.0-xfstests #1
[ 39.342636] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.11.1-1ubuntu1 04/01/2014
[ 39.343385] Call Trace:
[ 39.343601] dump_stack+0x85/0xc0
[ 39.343890] xlog_valid_rec_header.isra.6+0xd5/0xe0
[ 39.344309] xlog_do_recovery_pass+0x2bd/0x5d0
[ 39.344692] ? xlog_bread_noalign+0x98/0x110
[ 39.345092] ? xlog_bread_noalign+0x98/0x110
[ 39.345709] xlog_verify_tail+0x144/0x1e0
[ 39.346059] xlog_verify_head+0xd4/0x190
[ 39.346392] xlog_find_tail+0x208/0x350
[ 39.346718] xlog_recover+0x2b/0x160
[ 39.347025] xfs_log_mount+0x280/0x2a0
[ 39.347345] xfs_mountfs+0x42f/0x890
[ 39.347650] ? xfs_mru_cache_create+0x18b/0x1f0
[ 39.348032] xfs_fs_fill_super+0x4f8/0x6d0
[ 39.348380] ? xfs_test_remount_options+0x60/0x60
[ 39.348778] mount_bdev+0x17f/0x1b0
[ 39.349077] mount_fs+0x3b/0x170
[ 39.349366] ? __init_waitqueue_head+0x36/0x50
[ 39.349753] vfs_kern_mount.part.16+0x54/0x160
[ 39.350138] do_mount+0x20e/0xdf0
[ 39.350425] ? memdup_user+0x3e/0x70
[ 39.350731] __ia32_compat_sys_mount+0xa3/0x140
[ 39.351115] do_fast_syscall_32+0x9d/0x2f0
[ 39.351464] entry_SYSENTER_compat+0x84/0x96
[ 39.353323] XFS (loop0): Internal error xlog_valid_rec_header(2) at
line 5283 of file fs/xfs/xfs_log_recover.c. Caller
xlog_do_recovery_pass+0x2bd/0x5d0
// ... and so on ...
Best regards
Anatoly
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