I submitted a bug report: https://bugs.centos.org/view.php?id=11242
On 07/29/2016 09:53 AM, Casey Bodley wrote:
Hi, thanks for the details. We have seen that deadlock, and tracked it
down to a bug in curl_multi_wait() that wasn't fixed until curl v7.31.
You can read more about it here:
https://bugzilla.redhat.com/show_bug.cgi?id=1347904
https://bugzilla.redhat.com/show_bug.cgi?id=1327142
Casey
On 07/29/2016 03:17 AM, Zhangzengran wrote:
Hi Casey:
My OS is CentOS Linux release 7.2.1511 (Core), libcurl
version is 7.29.0-25. (with HAVE_CURL_MULTI_WAIT is TRUE).
-----------------------
Hi Casey:
We are testing multisite on v10.2.2, and found that the meta
sync thread blocked when shards reading remote mdlog response(write
method in RGWHTTPManager::signal_thread()), and the
RGWHTTPManager::ReqsThread also blocked on poll.Are there some kown
bugs be fixed already? Thank you!
[RGWCloneMetaLogCoroutine]
(gdb) frame
#0 0x00007f6d66abd1cd in write () from /lib64/libpthread.so.0
(gdb) info frame
Stack level 0, frame at 0x7f6c74fe6bb0:
rip = 0x7f6d66abd1cd in write; saved rip 0x7f6d67457b20 called by
frame at 0x7f6c74fe6d10 Arglist at 0x7f6c74fe6b98, args:
Locals at 0x7f6c74fe6b98, Previous frame's sp is 0x7f6c74fe6bb0
Saved registers:
rip at 0x7f6c74fe6ba8
(gdb) help frame
Select and print a stack frame.
With no argument, print the selected stack frame. (See also "info
frame").
An argument specifies the frame to select.
It can be a stack frame number or the address of the frame.
With argument, nothing is printed if input is coming from a command
file or a user-defined command.
(gdb) frame 0x7f6c74fe6d10
#1 0x00007f6d67457b20 in RGWHTTPManager::signal_thread() () from
/lib64/librgw.so.2
[RGWHTTPManager::ReqsThread]
(gdb) thread 153
[Switching to thread 153 (Thread 0x7f6c757ea700 (LWP 10691))]
#0 0x00007f6d660b769d in poll () from /lib64/libc.so.6
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