Details
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Bug
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Resolution: Duplicate
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Minor
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None
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Lustre 2.5.3
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RHEL6.6 Lustre client, kernel 2.6.32-504.1.3.el6.x86_64
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3
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17040
Description
From time to time, we can see the following stack trace on our Lustre clients.
WARNING: at fs/ext4/inode.c:3929 ext4_flush_unwritten_io+0x74/0x80 [ext4]() (Tainted: P --------------- ) Hardware name: bullx blade Modules linked in: sha512_generic crc32c_intel libcfs(U) panfs(P)(U) sunrpc acpi_cpufreq freq_table mperf rdma_ucm(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ib_cm(U) ipv6 ib_uverbs(U) ib_umad(U) mlx4_ib(U) ib_sa(U) mlx4_core(U) ib_mthca(U) ib_mad(U) dm_mirror dm_region_hash dm_log dm_mod mic(U) ipmi_devintf ipmi_si ipmi_msghandler sg lpc_ich mfd_core igb dca i2c_algo_bit i2c_core ptp pps_core mlx5_ib(U) mlx5_core(U) ib_core(U) compat(U) ext4 jbd2 mbcache sd_mod crc_t10dif ahci xhci_hcd megaraid_sas [last unloaded: lvfs] Pid: 18257, comm: lctl Tainted: P --------------- 2.6.32-504.1.3.el6.x86_64 #1 Call Trace: [<ffffffff81074df7>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff81074e4a>] ? warn_slowpath_null+0x1a/0x20 [<ffffffffa009fbb4>] ? ext4_flush_unwritten_io+0x74/0x80 [ext4] [<ffffffffa009bfc8>] ? ext4_sync_file+0x88/0x1d0 [ext4] [<ffffffffa11e43e8>] ? cfs_tracefile_dump_all_pages+0x188/0x2d0 [libcfs] [<ffffffffa11e45bb>] ? cfs_trace_dump_debug_buffer_usrstr+0x8b/0x90 [libcfs] [<ffffffffa11db6f3>] ? __proc_dump_kernel+0x23/0x30 [libcfs] [<ffffffffa11db0eb>] ? proc_call_handler+0x2b/0x70 [libcfs] [<ffffffffa11db185>] ? proc_dump_kernel+0x25/0x30 [libcfs] [<ffffffff81203b07>] ? proc_sys_call_handler+0x97/0xd0 [<ffffffff81203b54>] ? proc_sys_write+0x14/0x20 [<ffffffff8118e058>] ? vfs_write+0xb8/0x1a0 [<ffffffff8118ea21>] ? sys_write+0x51/0x90 [<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b
This issue is a duplicate of LU-5912, but for Lustre 2.5.3. Could you provide a backport of http://review.whamcloud.com/12731/ ?
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Issue Links
- duplicates
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- Resolved
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