On 02/21/2013 05:33 PM, Joao Eduardo Luis wrote:
On 02/20/2013 06:39 PM, Travis Rhoden wrote:
Actually, looking at the source code, that is a valid command -- and the
monitor correctly responded that it needed either "exit" or "enter"
after the command. I don't know why it segfaulted, though.
By far the weirdest segfault I've seen in a while.
Will look into this and report back.
Thanks!
-Joao
Oh, not weird at all. We're trying to read the next position in the
array without even checking if it exists. I'll have a fix in a minute
or so.
Thanks again!
-Joao
On Wed, Feb 20, 2013 at 1:31 PM, Travis Rhoden <trhoden@xxxxxxxxx
<mailto:trhoden@xxxxxxxxx>> wrote:
I typed in the following command and it crashed one of my monitors:
# ceph quorum
2013-02-20 18:22:59.327916 7f908186f700 0 monclient: hunting for
new mon
unknown quorum subcommand; use exit or enter
# ceph -s
health HEALTH_WARN 1 mons down, quorum 0,1,3,4 a,b,d,e
Log from ceph-mon.c.log:
-1> 2013-02-20 18:22:57.594190 7f92d84db700 0 mon.c@2(peon) e1
handle_command mon_command(quorum v 0) v1
0> 2013-02-20 18:22:57.721764 7f92d84db700 -1 *** Caught
signal (Segmentation fault) **
in thread 7f92d84db700
ceph version 0.56.3 (6eb7e15a4783b122e9b0c85ea9ba064145958aa5)
1: /usr/bin/ceph-mon() [0x5379da]
2: (()+0xfcb0) [0x7f92dd8cecb0]
3: (std::string::compare(char const*) const+0x2c) [0x7f92dcfe382c]
4: (bool std::operator==<char, std::char_traits<char>,
std::allocator<char> >(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, char
const*)+0x9) [0x488919]
5: (Monitor::handle_command(MMonCommand*)+0x13a8) [0x4741e8]
6: (Monitor::_ms_dispatch(Message*)+0x103b) [0x484bcb]
7: (Monitor::ms_dispatch(Message*)+0x32) [0x4945c2]
8: (DispatchQueue::entry()+0x349) [0x63d009]
9: (DispatchQueue::DispatchThread::entry()+0xd) [0x5d67bd]
10: (()+0x7e9a) [0x7f92dd8c6e9a]
11: (clone()+0x6d) [0x7f92dc767cbd]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
I had meant to do "ceph quorum_status". doh.
Version is 0.56.3 all around
- Travis
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