Ubuntu
ksh package

  1. Artful (17.10)
  2. Bug #1697501
  3. Comment #1

Comment 1 for bug 1697501

Revision history for this message
Eric Desrochers (slashd) wrote : Re: ksh segfault on job_chksave ()

I found a similar RH bugfix[1], not upstream[2].

Both backtrace from what I have in Ubuntu[3] and RH bug[4] correlate.

ksh could terminate unexpectedly with a segfault after it received the SIGCHLD signal.
See (sig=17) at frame 1 in job_reap.

[1] https://access.redhat.com/solutions/1253243

[2] - https://github.com/att/ast

[3] (gdb) bt
(gdb) bt
#0 job_chksave (pid=pid@entry=19003) at /build/ksh-6IEHIC/ksh-93u+20120801/src/cmd/ksh93/sh/jobs.c:1948
#1 0x00000000004282ab in job_reap (sig=17) at /build/ksh-6IEHIC/ksh-93u+20120801/src/cmd/ksh93/sh/jobs.c:428
#2 <signal handler called>

[4] - (gdb) bt
#0 job_chksave (pid=5066) at /usr/src/debug/ksh-20120801/src/cmd/ksh93/sh/jobs.c:1949
#1 0x0000000000429240 in job_reap (sig=17) at /usr/src/debug/ksh-20120801/src/cmd/ksh93/sh/jobs.c:428
#2 <signal handler called>