sparc64/107947: mysqld periodically core dumps (signal 4) with
libthr
Andrew Belashov
bel at orel.ru
Mon Jan 15 10:40:19 UTC 2007
>Number: 107947
>Category: sparc64
>Synopsis: mysqld periodically core dumps (signal 4) with libthr
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-sparc64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jan 15 10:40:17 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator: Andrew Belashov
>Release: FreeBSD 6.2-RC2 sparc64
>Organization:
JSC CenterTelecomm
>Environment:
System: FreeBSD localhost 6.2-RC2 FreeBSD 6.2-RC2 #0: Thu Jan 11 06:59:52 MSK
2007 bel at netra2.orel.ru:/usr/obj/usr/src/sys/GENERIC sparc64
mysql-server-4.1.22 depends on: mysql-client-4.1.22
$ ldd /usr/local/libexec/mysqld
/usr/local/libexec/mysqld:
libz.so.3 => /lib/libz.so.3 (0x406a0000)
libwrap.so.4 => /usr/lib/libwrap.so.4 (0x407b6000)
libcrypt.so.3 => /lib/libcrypt.so.3 (0x408c0000)
libstdc++.so.5 => /usr/lib/libstdc++.so.5 (0x409dc000)
libm.so.4 => /lib/libm.so.4 (0x40bec000)
libc_r.so.6 => /usr/lib/libthr-debug.so.2 (0x40d18000)
libc.so.6 => /lib/libc.so.6 (0x40e3a000)
libthr-debug.so.2 is same as libthr.so.2 but compiled with "-g -O0".
>Description:
The mysqld works 15 minutes - 60 minutes with multithreaded client
(intensive connect-query-disconnect) and dump core by signal 4 (illegal
instruction).
>How-To-Repeat:
Some debugging information:
# gdb /usr/local/libexec/mysqld mysqld.core
GNU gdb 6.1.1 [FreeBSD]
[...]
Program terminated with signal 4, Illegal instruction.
[...]
#0 thread_start (curthread=Cannot access memory at address 0x87f
) at /usr/src/lib/libthr/thread/thr_create.c:224
224 {
(gdb) l
219 return (ret);
220 }
221
222 static void
223 thread_start(struct pthread *curthread)
224 {
225 if (curthread->attr.suspend == THR_CREATE_SUSPENDED) {
226 sigset_t set = curthread->sigmask;
227
228 _thr_ast(curthread);
(gdb) x/5i $pc
0x40d23b00 <thread_start>: save %sp, -208, %sp
0x40d23b04 <thread_start+4>: sethi %hi(0x113800), %l7
0x40d23b08 <thread_start+8>: call 0x40d22ec0 <pthread_detach+1344>
0x40d23b0c <thread_start+12>:
add %l7, 0x78, %l7 ! 0x113878 <_init+63664>
0x40d23b10 <thread_start+16>: stx %i0, [ %fp + 0x87f ]
(gdb) info registers
g0 0x0 0
g1 0x1c7 455
g2 0xec9da0 15506848
g3 0x40e39468 1088656488
g4 0x18783 100227
g5 0x40e39468 1088656488
g6 0x0 0
g7 0x405a25c0 1079649728
o0 0x4 4
o1 0x28 40
o2 0x7fdffb67c40 8787498269760
o3 0x40d23b00 1087519488
o4 0x17e460 1565792
o5 0x16e0d547 383833415
sp 0x7fdffb67741 0x7fdffb67741
o7 0x40d23520 1087517984
l0 0x0 0
l1 0x0 0
l2 0x0 0
l3 0x0 0
l4 0x0 0
l5 0x0 0
l6 0x0 0
l7 0x0 0
i0 0x0 0
i1 0x0 0
i2 0x0 0
i3 0x0 0
i4 0x0 0
i5 0x0 0
fp 0x0 0x0
^^^^^^^^^^^^^^^^^^^^^^^^^^^
i7 0x0 0
pc 0x40d23b00 0x40d23b00 <thread_start>
npc 0x40d23b04 0x40d23b04 <thread_start+4>
state 0x4400001206 292057780742
fsr 0x21 33
fprs 0x3 3
y 0x0 0
cwp 0x6 6
pstate 0x12 18
asi 0x0 0
ccr 0x44 68
(gdb) bt
#0 thread_start (curthread=Cannot access memory at address 0x87f
) at /usr/src/lib/libthr/thread/thr_create.c:224
#1 0x0000000040d23528 in _pthread_create (thread=Cannot access memory at address 0x87f
)
at /usr/src/lib/libthr/thread/thr_create.c:177
(gdb) info threads
18 process 100227 0x0000000040f2d3c8 in select () from /lib/libc.so.6
17 process 100064 0x0000000040e998a8 in sigwait () from /lib/libc.so.6
16 process 100244 0x0000000040f2d4c8 in read () from /lib/libc.so.6
15 process 100246 0x0000000040f2d4c8 in read () from /lib/libc.so.6
14 process 100200 0x0000000040f2d4c8 in read () from /lib/libc.so.6
13 process 100268 0x0000000040f2d4c8 in read () from /lib/libc.so.6
12 process 100241 0x0000000040f2d4c8 in read () from /lib/libc.so.6
11 process 100245 0x0000000040f2d4c8 in read () from /lib/libc.so.6
10 process 100220 0x0000000040f2d4c8 in read () from /lib/libc.so.6
9 process 100264 0x0000000040f2d4c8 in read () from /lib/libc.so.6
8 process 100266 0x0000000040f2d4c8 in read () from /lib/libc.so.6
7 process 100198 0x0000000040f2d4c8 in read () from /lib/libc.so.6
6 process 100243 0x0000000040f2d4c8 in read () from /lib/libc.so.6
5 process 100267 0x0000000040f2d4c8 in read () from /lib/libc.so.6
4 process 100270 0x0000000040f2d4c8 in read () from /lib/libc.so.6
3 process 100272 0x0000000040f2d4c8 in read () from /lib/libc.so.6
2 process 100233 0x0000000040f2d4c8 in read () from /lib/libc.so.6
* 1 process 100103 thread_start (curthread=Cannot access memory at address 0x87f
)
at /usr/src/lib/libthr/thread/thr_create.c:224
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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