Why the pmdtm process is getting blocked for more than 120 seconds ?
Issue
- pmdtm process is getting blocked for more than 120 seconds:
INFO: task pmdtm:21775 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
pmdtm D ffff810136437860 0 21775 6464 21779 27293 (NOTLB)
ffff810311957dc8 0000000000000082 ffff81033a87b448 ffffffff800099ae
ffff8102896e2860 000000000000000a ffff8102896e2860 ffff810136437860
00000cdd935664dd 00000000000e1577 ffff8102896e2a48 000000023d826c48
Call Trace:
[<ffffffff800099ae>] __link_path_walk+0x173/0xf42
[<ffffffff8002cd2c>] mntput_no_expire+0x19/0x89
[<ffffffff8000ea75>] link_path_walk+0xa6/0xb2
[<ffffffff80064c6f>] __mutex_lock_slowpath+0x60/0x9b
[<ffffffff800236d7>] __path_lookup_intent_open+0x56/0x97
[<ffffffff80064cb9>] .text.lock.mutex+0xf/0x14
[<ffffffff8001afe7>] open_namei+0xea/0x6d5
[<ffffffff80067b88>] do_page_fault+0x4fe/0x874
[<ffffffff800274fb>] do_filp_open+0x1c/0x38
[<ffffffff80019e1e>] do_sys_open+0x44/0xbe
[<ffffffff8005e28d>] tracesys+0xd5/0xe0
Environment
- Red Hat Enterprise Linux 5
- kernel-2.6.18-194.el5
- pmdtm process provided by Informatica
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.
