Bug 1267707 - systemd-logind __epoll_wait_nocancel crash
Summary: systemd-logind __epoll_wait_nocancel crash
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: systemd
Version: 7.2
Hardware: x86_64
OS: Linux
Target Milestone: rc
: 7.3
Assignee: Jan Synacek
QA Contact: Branislav Blaškovič
Lucie Maňásková
Depends On:
Blocks: 1203710 1546795
TreeView+ depends on / blocked
Reported: 2015-09-30 18:19 UTC by Scott Poore
Modified: 2020-01-17 15:34 UTC (History)
10 users (show)

Fixed In Version: systemd-219-25.el7
Doc Type: Release Note
Doc Text:
The value of "net.unix.max_dgram_qlen" increased to 512 Previously, the default value of the "net.unix.max_dgram_qlen" kernel option was 16. As a consequence, when the network traffic was too high, certain services could terminate unexpectedly. This update sets the value to 512, thus preventing this problem. Users need to reboot the machine to apply this change.
Clone Of:
Last Closed: 2016-11-04 00:44:05 UTC
Target Upstream Version:

Attachments (Terms of Use)
abrt email (21.72 KB, text/plain)
2015-09-30 18:22 UTC, Scott Poore
no flags Details

System ID Private Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 2999471 0 None None None 2019-11-04 14:20:25 UTC
Red Hat Product Errata RHBA-2016:2216 0 normal SHIPPED_LIVE systemd bug fix and enhancement update 2016-11-03 13:24:51 UTC

Description Scott Poore 2015-09-30 18:19:42 UTC
Description of problem:

Received abrt report on crash:

time:           Wed 30 Sep 2015 11:31:49 AM EDT
cmdline:        /usr/lib/systemd/systemd-logind
uid:            0 (root)
abrt_version:   2.1.11
backtrace_rating: 4
crash_function: __epoll_wait_nocancel
executable:     /usr/lib/systemd/systemd-logind
global_pid:     621
hostname:       ibm-hs21-12.testrelm.test
kernel:         3.10.0-320.el7.x86_64
last_occurrence: 1443627109
pid:            621
pkg_arch:       x86_64
pkg_epoch:      0
pkg_name:       systemd
pkg_release:    17.el7
pkg_version:    219
pwd:            /
runlevel:       N 3
username:       root

coredump.gz:    Binary file, 71736 bytes

Version-Release number of selected component (if applicable):
pkg_name:       systemd
pkg_release:    17.el7
pkg_version:    219

How reproducible:

Steps to Reproduce:

Actual results:

Expected results:
no crash

Additional info:

Comment 1 Scott Poore 2015-09-30 18:22:09 UTC
Created attachment 1078763 [details]
abrt email

Comment 3 masanari iida 2016-03-03 04:55:02 UTC
Same crash 
OS RHEL7.1 + Update systemd, dracut, linux-firmware and kernel.


(gdb) bt
#0  0x00007fa408d77763 in __epoll_wait_nocancel () from /lib64/libc.so.6
#1  0x00007fa409ce3449 in sd_event_wait (e=e@entry=0x7fa40a4b1230,
    at src/libsystemd/sd-event/sd-event.c:2372
#2  0x00007fa409cda137 in sd_event_run (timeout=18446744073709551615,
    e=0x7fa40a4b1230) at src/libsystemd/sd-event/sd-event.c:2499
#3  manager_run (m=0x7fa40a4b00a0) at src/login/logind.c:1119
#4  main (argc=<optimized out>, argv=<optimized out>)
    at src/login/logind.c:1181

Comment 6 Michal Sekletar 2016-06-27 16:21:00 UTC
We should definitely backport commit that adjusts watchdog timeout. 1min. is just too short in some cases. Also there are couple other related fixes we should pull in


Comment 7 Jan Synacek 2016-07-13 12:07:10 UTC

Comment 8 Branislav Blaškovič 2016-07-18 07:26:00 UTC
QA acking..

Comment 13 errata-xmlrpc 2016-11-04 00:44:05 UTC
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.


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