[Bug 204426] Processes terminating cannot access memory

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Sun Feb 21 12:36:01 UTC 2016


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204426

--- Comment #44 from Robert Blayzor <rblayzor at inoc.net> ---
 FreeBSD 10.3-BETA1 #1 r295491M:

Failed to write core file for process exim (error 14)
pid 743 (exim), uid 26: exited on signal 11


#0  __thr_fork () at
/.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libthr/thread/thr_fork.c:186
186     /.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libthr/thread/thr_fork.c: No
such file or directory.
        in /.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libthr/thread/thr_fork.c
[New Thread 803006400 (LWP 100046/<unknown>)]
(gdb) bt full
#0  __thr_fork () at
/.amd_mnt/juno/pub/FreeBSD/10-STABLE/lib/libthr/thread/thr_fork.c:186
        rtld_locks = Cannot access memory at address 0x7fffffffc7d0
Current language:  auto; currently minimal
(gdb) x/i $rip
0x801206f3e <__thr_fork+190>:   callq  0x8012090e0 <__error_threaded>
(gdb) info registers
rax            0x17e44  97860
rbx            0x0      0
rcx            0x80238f70a      34397026058
rdx            0x0      0
rsi            0x801209658      34378651224
rdi            0x2      2
rbp            0x7fffffffc820   0x7fffffffc820
rsp            0x7fffffffc7c0   0x7fffffffc7c0
r8             0x2      2
r9             0x2      2
r10            0x2710   10000
r11            0x246    582
r12            0x803006400      34410095616
r13            0x76b5b0 7779760
r14            0x17e44  97860
r15            0x0      0
rip            0x801206f3e      0x801206f3e <__thr_fork+190>
eflags         0x10246  66118
cs             0x43     67
ss             0x3b     59
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0


procstat -f exim.core
  PID COMM               FD T V FLAGS     REF  OFFSET PRO NAME
  743 exim              text v r r-------  -       - -   /usr/local/sbin/exim
  743 exim               cwd v d r-------  -       - -   /var/spool/exim
  743 exim              root v d r-------  -       - -   /
  743 exim                 0 v c rw------  3       0 -   /dev/null
  743 exim                 1 v c rw------  3       0 -   /dev/null
  743 exim                 2 v c rw------  3       0 -   /dev/null
  743 exim                 3 s - rw------  1       0 TCP ::.25 ::.0
  743 exim                 4 s - rw------  1       0 TCP 0.0.0.0:25 0.0.0.0:0
  743 exim                 5 s - rw------  2       0 TCP
2607:f058:110:1::1:2.25 2607:f058:110:1::f:1.38009
  743 exim                 6 s - rw---n--  1       0 UDP 0.0.0.0:863 0.0.0.0:0
  743 exim                 7 s - rw------  2       0 TCP
2607:f058:110:1::1:2.25 2607:f058:110:1::f:1.38009
  743 exim                 8 s - rw------  1       0 UDD /var/run/log

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