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A server running Oracle Linux 6 with kernel RHCK 2.6.32-696.1.1.el6.x86_64 panicked with kernel BUG at fs/ext4/inode.c:2598! (Doc ID 2387154.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 6.9 and later
Information in this document applies to any platform.

Symptoms

A server crashed unexpectedly with the following back trace seen in the vmcore file generated by the crash:

KERNEL: /share/linuxrpm/vmlinux_repo/64/2.6.32-696.1.1.el6.x86_64/vmlinux
DUMPFILE: vmcore [PARTIAL DUMP]
CPUS: 24
DATE: Wed Jan 31 20:16:08 2018
UPTIME: 3 days, 14:14:47
LOAD AVERAGE: 1.63, 1.37, 1.29
TASKS: 752
NODENAME: localhost
RELEASE: 2.6.32-696.1.1.el6.x86_64
VERSION: #1 SMP Tue Apr 11 04:48:06 PDT 2017
MACHINE: x86_64 (3499 Mhz)
MEMORY: 63.9 GB
PANIC: "kernel BUG at fs/ext4/inode.c:2598!"
PID: 29370
COMMAND: "abrt-hook-ccpp"
TASK: ffff8810700e7520 [THREAD_INFO: ffff881071c74000]
CPU: 0
STATE: TASK_RUNNING (PANIC)

bt
PID: 29370 TASK: ffff8810700e7520 CPU: 0 COMMAND: "abrt-hook-ccpp"
#0 [ffff881071c778c0] machine_kexec at ffffffff8103fd6b
#1 [ffff881071c77920] crash_kexec at ffffffff810d1e12
#2 [ffff881071c779f0] oops_end at ffffffff8154ee30
#3 [ffff881071c77a20] die at ffffffff8101101b
#4 [ffff881071c77a50] do_trap at ffffffff8154e674
#5 [ffff881071c77ab0] do_invalid_op at ffffffff8100cd85
#6 [ffff881071c77b50] invalid_op at ffffffff8100c01b
[exception RIP: write_cache_pages_da+1119]
RIP: ffffffffa00b7e8f RSP: ffff881071c77c08 RFLAGS: 00010202
RAX: 00c000000000082d RBX: ffff88006c22d130 RCX: 24aad2f85e866a06
RDX: ffffea0029ec0808 RSI: ffff88010052acb8 RDI: 0000000000000286
RBP: ffff881071c77d18 R8: 0000000000017fc9 R9: ffff88006c22d130
R10: 0000000000017fc8 R11: 00000000000007c8 R12: ffff88010052add8
R13: ffff88006c22d130 R14: 0000000000017fc9 R15: ffff881071c77d98
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffff881071c77c00] write_cache_pages_da at ffffffffa00b7bff [ext4]
#8 [ffff881071c77d20] ext4_da_writepages at ffffffffa00b8172 [ext4]
#9 [ffff881071c77e20] do_writepages at ffffffff81143971
#10 [ffff881071c77e30] __filemap_fdatawrite_range at ffffffff8112ed3b
#11 [ffff881071c77eb0] filemap_write_and_wait_range at ffffffff8112ed9a
#12 [ffff881071c77ee0] vfs_fsync_range at ffffffff811ccabe
#13 [ffff881071c77f30] vfs_fsync at ffffffff811ccbad
#14 [ffff881071c77f40] do_fsync at ffffffff811ccbee
#15 [ffff881071c77f70] sys_fsync at ffffffff811ccc40
#16 [ffff881071c77f80] system_call_fastpath at ffffffff8100b0d2
RIP: 00000033b36e18e0 RSP: 00007fff69e07ce0 RFLAGS: 00000217
RAX: 000000000000004a RBX: ffffffff8100b0d2 RCX: 0000000000000010
RDX: 0000000000010000 RSI: 0000000029652000 RDI: 0000000000000006
RBP: 0000000000002000 R8: 0000000000002000 R9: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: ffffffff811ccc40
R13: ffff881071c77f78 R14: 0000000000000004 R15: 0000000000000007
ORIG_RAX: 000000000000004a CS: 0033 SS: 002b

 

 

Changes

 Subsequently, multiple crashes occurred, with different call traces captured.

Cause

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