ok, so here we go
but i don't see much more withour bt full, do i understand correctly ?
the command:
coredumpctl gdb 754
display/i $pc
info reg
disassemble $pc-0x50,$pc+0x50
thanks
coredumpctl gdb 754
quit
PID: 754 (logrotate)
UID: 0 (root)
GID: 0 (root)
Signal: 11 (SEGV)
Timestamp: Sun 2019-01-20 11:24:28 CET (1 day 5h ago)
Command Line: /usr/sbin/logrotate /etc/logrotate.conf
Executable: /usr/sbin/logrotate
Control Group: /system.slice/cron.service
Unit: cron.service
Slice: system.slice
Boot ID: a57707f859fe4471ae781dd31d2b75f7
Machine ID: 230c8c9b6d3840749a45bcf6e73d8a82
Hostname: syslog
Storage:
/var/lib/systemd/coredump/core.logrotate.0.a57707f859fe4471ae781dd31d2b75f7.754.1547979868000000000000.lz4
Message: Process 754 (logrotate) of user 0 dumped core.
Stack trace of thread 754:
#0 0x000055e3239db88a rotateLogSet (logrotate)
#1 0x000055e3239d298d main (logrotate)
#2 0x00007faf357fb2e1 __libc_start_main (libc.so.6)
#3 0x000055e3239d312a _start (logrotate)
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
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<http://www.gnu.org/software/gdb/bugs/>.
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Reading symbols from /usr/sbin/logrotate...Reading symbols from
/usr/lib/debug/.build-id/4b/a3d893d18935ef292da47c51a97214648caf82.debug...done.
done.
[New LWP 754]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/sbin/logrotate /etc/logrotate.conf'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000055e3239db88a in rotateLogSet (log=0x55e323ec4ca0, force=0) at
logrotate.c:1880
1880 logrotate.c: Aucun fichier ou dossier de ce type.
display/i $pc
1: x/i $pc
=> 0x55e3239db88a <rotateLogSet+74>: callq 0x55e3239d6ec0 <message>
info reg
info reg
rax 0x0 0
rbx 0x55e323ec4ca0 94434048625824
rcx 0x0 0
rdx 0x55e323ec4650 94434048624208
rsi 0x55e3239dd734 94434043483956
rdi 0x2 2
rbp 0x7fff984ad610 0x7fff984ad610
rsp 0x7fff97c94a30 0x7fff97c94a30
r8 0x55e358a20040 94434932949056
r9 0x0 0
r10 0x0 0
r11 0x246 582
r12 0x55e3239d3100 94434043441408
r13 0x0 0
r14 0x0 0
r15 0x55e323ec4ca0 94434048625824
rip 0x55e3239db88a 0x55e3239db88a <rotateLogSet+74>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
disassemble $pc-0x50,$pc+0x50
Dump of assembler code from 0x55e3239db83a to 0x55e3239db8da:
0x000055e3239db83a: test %al,(%rax)
0x000055e3239db83c: add %al,(%rax)
0x000055e3239db83e: add %al,(%rax)
0x000055e3239db840 <rotateLogSet+0>: push %rbp
0x000055e3239db841 <rotateLogSet+1>: mov %rsp,%rbp
0x000055e3239db844 <rotateLogSet+4>: push %r15
0x000055e3239db846 <rotateLogSet+6>: push %r14
0x000055e3239db848 <rotateLogSet+8>: push %r13
0x000055e3239db84a <rotateLogSet+10>: push %r12
0x000055e3239db84c <rotateLogSet+12>: mov %esi,%r13d
0x000055e3239db84f <rotateLogSet+15>: push %rbx
0x000055e3239db850 <rotateLogSet+16>: lea 0x1edd(%rip),%rsi
# 0x55e3239dd734
0x000055e3239db857 <rotateLogSet+23>: mov %rdi,%r15
0x000055e3239db85a <rotateLogSet+26>: sub $0x58,%rsp
0x000055e3239db85e <rotateLogSet+30>: mov (%rdi),%rdx
0x000055e3239db861 <rotateLogSet+33>: mov %fs:0x28,%rax
0x000055e3239db86a <rotateLogSet+42>: mov %rax,-0x38(%rbp)
0x000055e3239db86e <rotateLogSet+46>: xor %eax,%eax
0x000055e3239db870 <rotateLogSet+48>: movslq 0x10(%rdi),%rax
0x000055e3239db874 <rotateLogSet+52>: mov $0x2,%edi
0x000055e3239db879 <rotateLogSet+57>: lea 0x12(,%rax,4),%rax
0x000055e3239db881 <rotateLogSet+65>: and $0xfffffffffffffff0,%rax
0x000055e3239db885 <rotateLogSet+69>: sub %rax,%rsp
0x000055e3239db888 <rotateLogSet+72>: xor %eax,%eax
=> 0x000055e3239db88a <rotateLogSet+74>: callq 0x55e3239d6ec0 <message>
0x000055e3239db88f <rotateLogSet+79>: test %r13d,%r13d
0x000055e3239db892 <rotateLogSet+82>: mov %rsp,%r12
0x000055e3239db895 <rotateLogSet+85>: jne 0x55e3239dbb70
<rotateLogSet+816>
0x000055e3239db89b <rotateLogSet+91>: cmpl $0x5,0x20(%r15)
0x000055e3239db8a0 <rotateLogSet+96>: ja 0x55e3239db8e0
<rotateLogSet+160>
0x000055e3239db8a2 <rotateLogSet+98>: mov 0x20(%r15),%eax
0x000055e3239db8a6 <rotateLogSet+102>: lea 0x35ab(%rip),%rdx
# 0x55e3239dee58
0x000055e3239db8ad <rotateLogSet+109>: movslq (%rdx,%rax,4),%rax
0x000055e3239db8b1 <rotateLogSet+113>: add %rdx,%rax
0x000055e3239db8b4 <rotateLogSet+116>: jmpq *%rax
0x000055e3239db8b6 <rotateLogSet+118>: nopw %cs:0x0(%rax,%rax,1)
0x000055e3239db8c0 <rotateLogSet+128>: mov 0x28(%r15),%rdx
0x000055e3239db8c4 <rotateLogSet+132>: lea 0x1ecc(%rip),%rsi
# 0x55e3239dd797
0x000055e3239db8cb <rotateLogSet+139>: mov $0x2,%edi
0x000055e3239db8d0 <rotateLogSet+144>: xor %eax,%eax
---Type <return> to continue, or q <return> to quit---
0x000055e3239db8d2 <rotateLogSet+146>: callq 0x55e3239d6ec0 <message>
0x000055e3239db8d7 <rotateLogSet+151>: nopw 0x0(%rax,%rax,1)
End of assembler dump.
----- Mail original -----
De: "Bernhard Übelacker" <[email protected]>
À: [email protected], [email protected]
Envoyé: Lundi 21 Janvier 2019 16:37:17
Objet: Bug#918106: logrotate: segfaults in rotateLogSet
Control: retitle 918106 logrotate: segfaults in rotateLogSet
Hello Marc,
I am sorry, but my advice to use 'bt full' makes
following commands to show the state of frame #1.
Therefore can you repeat the "coredumpctl gdb 754"
without the "bt full"?
Kind regards,
Bernhard
