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Message #00321
[Bug 333750] [NEW] rw_lock still has possibility to hangup
Public bug reported:
rw_lock implementation may still have possibility to hangup
--Thread 1409067328 has waited at ../../storage/innobase/include/btr0btr.ic line 31 for 7.00 seconds the semaphore:
X-lock on RW-latch at 0x7f1b0bf3cab8 created in file buf/buf0buf.c line 810
a writer (thread id 1409067328) has reserved it in mode wait exclusive
number of readers 0, s_waiters flag 1, x_waiters flag 1
Last time read locked in file not yet reserved line 0
Last time write locked in file btr/btr0cur.c line 467
or
--Thread 1397074240 has waited at btr/btr0cur.c line 418 for 0.00 seconds the semaphore:
S-lock on RW-latch at 0x7f8ef9292138 created in file dict/dict0dict.c line 1541
number of readers 0, s_waiters flag 0, x_waiters flag 0
Last time read locked in file btr/btr0cur.c line 418
Last time write locked in file btr/btr0cur.c line 411
** Affects: percona-patches
Importance: High
Assignee: Yasufumi Kinoshita (yasufumi-kinoshita)
Status: Confirmed
** Affects: percona-xtradb
Importance: High
Assignee: Yasufumi Kinoshita (yasufumi-kinoshita)
Status: In Progress
** Also affects: percona-patches
Importance: Undecided
Status: New
** Changed in: percona-xtradb
Importance: Undecided => High
Assignee: (unassigned) => Yasufumi Kinoshita (yasufumi-kinoshita)
** Changed in: percona-patches
Importance: Undecided => High
Assignee: (unassigned) => Yasufumi Kinoshita (yasufumi-kinoshita)
Status: New => Confirmed
** Changed in: percona-xtradb
Status: New => In Progress
--
rw_lock still has possibility to hangup
https://bugs.launchpad.net/bugs/333750
You received this bug notification because you are a member of Percona
developers, which is the registrant for Percona patches.
Status in Patches for MySQL by Percona: Confirmed
Status in Percona XtraDB Storage Engine for MySQL: In Progress
Bug description:
rw_lock implementation may still have possibility to hangup
--Thread 1409067328 has waited at ../../storage/innobase/include/btr0btr.ic line 31 for 7.00 seconds the semaphore:
X-lock on RW-latch at 0x7f1b0bf3cab8 created in file buf/buf0buf.c line 810
a writer (thread id 1409067328) has reserved it in mode wait exclusive
number of readers 0, s_waiters flag 1, x_waiters flag 1
Last time read locked in file not yet reserved line 0
Last time write locked in file btr/btr0cur.c line 467
or
--Thread 1397074240 has waited at btr/btr0cur.c line 418 for 0.00 seconds the semaphore:
S-lock on RW-latch at 0x7f8ef9292138 created in file dict/dict0dict.c line 1541
number of readers 0, s_waiters flag 0, x_waiters flag 0
Last time read locked in file btr/btr0cur.c line 418
Last time write locked in file btr/btr0cur.c line 411
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