RHEL 5.7 システムが "WARNING: at mm/vmalloc.c:329 __vunmap()" を表示しハングアップする
Issue
- RHEL 5.7 インスタンスが以下のエラーとコールトレースを不定期に表示します。
kernel:Trying to vfree() nonexistent vm area (ffff8102ce540000)
kernel:WARNING: at mm/vmalloc.c:329 __vunmap()
kernel:
kernel:Call Trace:
kernel:[<ffffffff800454f0>] __free_fdtable+0x1c/0x30
kernel:[<ffffffff800efd9a>] free_fdtable_work+0x36/0x43
kernel:[<ffffffff8004d311>] run_workqueue+0x9e/0xfb
kernel:[<ffffffff80049b20>] worker_thread+0x0/0x122
kernel:[<ffffffff80049c10>] worker_thread+0xf0/0x122
kernel:[<ffffffff8008e857>] default_wake_function+0x0/0xe
kernel:[<ffffffff80032722>] kthread+0xfe/0x132
kernel:[<ffffffff8005dfb1>] child_rip+0xa/0x11
kernel:[<ffffffff80032624>] kthread+0x0/0x132
kernel:[<ffffffff8005dfa7>] child_rip+0x0/0x11
- RHEL 5.7 インスタンスが不定期にハングアップします。
Environment
- Red Hat Enterprise Linux 5.7
- Kernel 2.6.18-274.el5
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