Bug 231795 - 12-ALPHA8 top SIGSEGV
Summary: 12-ALPHA8 top SIGSEGV
Status: Closed Overcome By Events
Alias: None
Product: Base System
Classification: Unclassified
Component: bin (show other bugs)
Version: CURRENT
Hardware: amd64 Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
Keywords: regression
Depends on:
Reported: 2018-09-29 03:33 UTC by Jeremy Faulkner
Modified: 2021-01-16 21:52 UTC (History)
5 users (show)

See Also:

tar zcvf top-core.tar.gz /usr/bin/top top.core (96.59 KB, application/x-gzip)
2018-09-29 03:33 UTC, Jeremy Faulkner
no flags Details

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Description Jeremy Faulkner 2018-09-29 03:33:34 UTC
Created attachment 197585 [details]
tar zcvf top-core.tar.gz /usr/bin/top top.core

FreeBSD constans 12.0-ALPHA8 FreeBSD 12.0-ALPHA8 r338991 GENERIC  amd64

constans# gdb top top.core
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Reading symbols from top...Reading symbols from /usr/lib/debug//usr/bin/top.debug...done.
[New LWP 102558]
Core was generated by `top'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  format_next_process (xhandle=0x213590 <handle>, get_userid=0x20f6a0 <username>, flags=0)
    at /usr/src/usr.bin/top/machine.c:895
895             if ((pp->ki_flag & P_INMEM) == 0) {
(gdb) bt
#0  format_next_process (xhandle=0x213590 <handle>, get_userid=0x20f6a0 <username>, flags=0)
    at /usr/src/usr.bin/top/machine.c:895
#1  0x000000000020e398 in main (argc=2147483647, argv=0x8007cd000) at /usr/src/usr.bin/top/top.c:652
Comment 1 Jeremy Faulkner 2018-10-01 04:04:26 UTC
Top when run on the host has a chance to core dump when an new app loads in a jail. It has core dumped just logging in to a jail via ssh.
Comment 2 Mark Linimon freebsd_committer freebsd_triage 2018-10-09 15:46:36 UTC
Is this a regression from an earlier install, or is this a new install?
Comment 3 Jeremy Faulkner 2018-10-09 20:57:33 UTC
This system was upgraded from 11.2-RELENG branch to 12-ALPHA by cloning the boot environment, and then building from source. I forget exactly which ALPHA 4, or 5 but it's currently at 8.
Comment 4 Conrad Meyer freebsd_committer 2018-11-03 16:02:57 UTC
(In reply to Jeremy Faulkner from comment #0)
The attached top lacks debugging symbols.  Can you also copy your /usr/lib/debug/usr/bin/top.debug (or if the system has been upgraded since, have you been able to reproduce the problem?).
Comment 5 Jeremy Faulkner 2018-11-10 01:33:36 UTC
I have not been able to reproduce the issue with newer build

FreeBSD constans 12.0-BETA3 FreeBSD 12.0-BETA3 r340099 GENERIC  amd64