Bug #18047: assertion in MDSMap::get_up_features() - CephFS - Ceph

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Bug #18047

closed

assertion in MDSMap::get_up_features()

Added by Zheng Yan over 7 years ago. Updated over 7 years ago.

Status:

Resolved

Priority:

Normal

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Category:

Target version:

% Done:

Source:

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Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

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Crash signature (v1):

Crash signature (v2):

Description

     0> 2016-11-28 11:44:31.396479 7f6c49d05700 -1 /home/zhyan/Ceph/ceph/src/mds/MDSMap.h: In function 'uint64_t MDSMap::get_up_features()' thread 7f6c49d05700 time 2016-11-28 11:44:31.377558
/home/zhyan/Ceph/ceph/src/mds/MDSMap.h: 386: FAILED assert(q != mds_info.end())

 ceph version 11.0.2-1785-g83230e0 (83230e003d364bc9d1b0ceef60c4b6cc09e2fb7b)
 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x8a) [0x562bb3e1d35a]
 2: (MDLog::_submit_thread()+0xc27) [0x562bb3ce8cc7]
 3: (MDLog::SubmitThread::entry()+0xd) [0x562bb3a71bed]
 4: (()+0x75ca) [0x7f6c54d745ca]
 5: (clone()+0x6d) [0x7f6c53be10ed]

looks like the log submit was accessing the mdsmap while the mdsmap was being modified.