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Message-ID: <bug-202925-13602-4pHvF7lShl@https.bugzilla.kernel.org/>
Date: Thu, 14 Mar 2019 19:28:46 +0000
From: bugzilla-daemon@...zilla.kernel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 202925] BUG: failure at
fs/buffer.c:195/__find_get_block_slow()!
https://bugzilla.kernel.org/show_bug.cgi?id=202925
--- Comment #1 from Jungyeon (jungyeon@...ech.edu) ---
I'm attaching original messages without BUG_ON inserted, just in case.
[ 0.000000] Linux version 5.0.0+ (jungyeon@...per) (gcc version 7.3.0
(Ubuntu 7.3.0-27ubuntu1~18.04)) #1 Tue Mar 12 20:26:38 EDT 2019
[ 0.000000] memblock address range: 0x7fffe4000000 - 0x7fffebfff000
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32319
[ 0.000000] Kernel command line: mem=128M virtio_mmio.device=316@...000000:1
[ 0.000000] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.000000] Memory available: 129044k/131068k RAM
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 4096
[ 0.000000] lkl: irqs initialized
[ 0.000000] clocksource: lkl: mask: 0xffffffffffffffff max_cycles:
0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.000001] lkl: time and timers initialized (irq2)
[ 0.000008] pid_max: default: 4096 minimum: 301
[ 0.000073] Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
[ 0.000083] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes)
[ 0.002211] printk: console [lkl_console0] enabled
[ 0.002242] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 19112604462750000 ns
[ 0.004003] clocksource: Switched to clocksource lkl
[ 0.004291] virtio-mmio: Registering device virtio-mmio.0 at
0x1000000-0x100013b, IRQ 1.
[ 0.004761] workingset: timestamp_bits=62 max_order=15 bucket_order=0
[ 0.015057] virtio-mmio virtio-mmio.0: Failed to enable 64-bit or 32-bit
DMA. Trying to continue, but this might not work.
[ 0.015283] virtio_blk virtio0: [vda] 32768 512-byte logical blocks (16.8
MB/16.0 MiB)
[ 0.016182] random: get_random_bytes called from init_oops_id+0x35/0x40 with
crng_init=0
[ 0.016509] Warning: unable to open an initial console.
[ 0.016545] This architecture does not have kernel memory protection.
[ 0.016550] Run /init as init process
[ 0.019152] EXT4-fs warning (device vda): ext4_clear_journal_err:4988:
Filesystem error recorded from previous mount: Readonly filesystem
[ 0.019166] EXT4-fs warning (device vda): ext4_clear_journal_err:4989:
Marking fs in need of filesystem check.
[ 0.019503] EXT4-fs (vda): warning: mounting fs with errors, running e2fsck
is recommended
[ 0.019672] EXT4-fs (vda): mounted filesystem with writeback data mode.
Opts: errors=remount-ro
v13 = syscall(SYS_open, (long)v12, 65536, 0);
syscall(SYS_getdents64, (long)v13, (long)v1, 1435);
syscall(SYS_fsync, (long)v13);
v15 = syscall(SYS_open, (long)v14, 66, 438);
syscall(SYS_fdatasync, (long)v15);
syscall(SYS_newlstat, (long)v9, (long)v1);
syscall(SYS_link, (long)v4, (long)v16);
syscall(SYS_fsync, (long)v15);
syscall(SYS_fsync, (long)v15);
syscall(SYS_ftruncate, (long)v15, 6784);
syscall(SYS_ftruncate, (long)v15, 4214);
syscall(SYS_fsync, (long)v15);
syscall(SYS_ftruncate, (long)v15, 150);
syscall(SYS_removexattr, (long)v2, (long)v17);
syscall(SYS_write, (long)v15, (long)v1, 7533);
syscall(SYS_ftruncate, (long)v15, 7340);
syscall(SYS_fsync, (long)v13);
syscall(SYS_listxattr, (long)v12, (long)v1, 2897);
syscall(SYS_ftruncate, (long)v15, 4203);
syscall(SYS_write, (long)v15, (long)v1, 7906);
syscall(SYS_symlink, (long)v5, (long)v18);
syscall(SYS_write, (long)v15, (long)v1, 3168);
syscall(SYS_write, (long)v15, (long)v1, 8165);
syscall(SYS_readlink, (long)v2, (long)v1, 8192);
syscall(SYS_symlink, (long)v11, (long)v19);
syscall(SYS_fsync, (long)v13);
syscall(SYS_pwrite64, (long)v15, (long)v1, 1395, 6228);
syscall(SYS_lseek, (long)v15, 943, 4);
syscall(SYS_fsync, (long)v15);
syscall(SYS_read, (long)v15, (long)v0, 143);
syscall(SYS_setxattr, (long)v2, (long)v21, (long)v20, 47, 1);
syscall(SYS_newlstat, (long)v4, (long)v1);
syscall(SYS_lseek, (long)v15, 6040, 2);
syscall(SYS_ftruncate, (long)v15, 7971);
syscall(SYS_write, (long)v15, (long)v1, 6752);
syscall(SYS_ftruncate, (long)v15, 2719);
syscall(SYS_truncate, (long)v7, 7015);
syscall(SYS_fsync, (long)v13);
syscall(SYS_write, (long)v15, (long)v1, 7688);
syscall(SYS_rmdir, (long)v4);
syscall(SYS_ftruncate, (long)v15, 6532);
syscall(SYS_access, (long)v3, 4);
syscall(SYS_fsync, (long)v15);
syscall(SYS_write, (long)v15, (long)v1, 2075);
syscall(SYS_chmod, (long)v8, 3072);
syscall(SYS_access, (long)v6, 4);
syscall(SYS_symlink, (long)v3, (long)v22);
syscall(SYS_fsync, (long)v13);
syscall(SYS_write, (long)v15, (long)v1, 2053);
syscall(SYS_newlstat, (long)v10, (long)v1);
syscall(SYS_pwrite64, (long)v15, (long)v1, 8187, 6095);
syscall(SYS_fsync, (long)v15);
syscall(SYS_rmdir, (long)v12);
syscall(SYS_unlink, (long)v18);
syscall(SYS_link, (long)v19, (long)v23);
syscall(SYS_rmdir, (long)v16);
syscall(SYS_listxattr, (long)v11, (long)v1, 3204);
syscall(SYS_truncate, (long)v14, 1234);
syscall(SYS_unlink, (long)v14);
syscall(SYS_write, (long)v15, (long)v1, 5057);
syscall(SYS_fsync, (long)v15);
syscall(SYS_access, (long)v5, 2);
syscall(SYS_write, (long)v15, (long)v1, 3487);
v25 = syscall(SYS_open, (long)v24, 66, 438);
syscall(SYS_listxattr, (long)v23, (long)v1, 5475);
syscall(SYS_unlink, (long)v19);
syscall(SYS_write, (long)v15, (long)v1, 6720);
syscall(SYS_truncate, (long)v10, 4907);
syscall(SYS_getdents64, (long)v13, (long)v1, 2280);
syscall(SYS_fsync, (long)v15);
syscall(SYS_fdatasync, (long)v25);
syscall(SYS_pwrite64, (long)v25, (long)v1, 6152, 4834);
syscall(SYS_removexattr, (long)v23, (long)v26);
syscall(SYS_lseek, (long)v25, 3817, 2);
v28 = syscall(SYS_open, (long)v27, 66, 438);
syscall(SYS_pwrite64, (long)v28, (long)v1, 7246, 2701);
syscall(SYS_newlstat, (long)v24, (long)v1);
syscall(SYS_lseek, (long)v28, 2201, 0);
syscall(SYS_fsync, (long)v28);
syscall(SYS_lseek, (long)v25, 118, 3);
syscall(SYS_lseek, (long)v25, 731, 4);
syscall(SYS_lseek, (long)v25, 3045, 2);
syscall(SYS_newstat, (long)v5, (long)v1);
v29 = syscall(SYS_open, (long)v3, 65536, 0);
syscall(SYS_link, (long)v7, (long)v30);
syscall(SYS_lseek, (long)v25, 3463, 3);
syscall(SYS_removexattr, (long)v27, (long)v31);
syscall(SYS_fsync, (long)v25);
v33 = syscall(SYS_open, (long)v32, 66, 438);
syscall(SYS_mkdir, (long)v34, 511);
syscall(SYS_fdatasync, (long)v33);
syscall(SYS_write, (long)v33, (long)v1, 1254);
syscall(SYS_utimes, (long)v24, (long)v1);
syscall(SYS_chmod, (long)v32, 3072);
syscall(SYS_truncate, (long)v3, 537);
syscall(SYS_removexattr, (long)v5, (long)v35);
syscall(SYS_fsync, (long)v29);
Segmentation fault (core dumped)
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