Red Hat Bugzilla – Bug 1248859
[aarch64] crash command "bt -f" Segmentation fault
Last modified: 2015-11-19 07:00:17 EST
Description of problem:
"bt -f" command will trigger Segmentation fault.
detail info: http://beaker-archive.app.eng.bos.redhat.com/beaker-logs/2015/07/10323/1032336/2115170/32833830/crash.vmcore.log
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Did you save the vmcore file?
It's typically impossible to debug crash issue that occur with dumpfiles
without having the vmcore.
I have another vmcore and can reproduce the problem.
This was introduced by this RHEL7.2 bugzilla:
BZ #1227508 - Enhancement to the ARM64 backtrace capability
It requires a one-line fix.
Fix applied in the upstream crash-utility git repository:
Fix for a segmentation violation generated by the ARM64 "bt -[f|F]"
options when analyzing the active tasks in vmcores generated by the
kdump facility. This bug is a regression that was introduced in
crash-7.1.2 by commit 15a58e4070486efa2aa965bdd636626e62b65cc7, which
was an enhancement of the ARM64 backtrace capability for active tasks
in kdump vmcores.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.