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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Crash in systemd 210 when ssh is disconnected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81327">81327</a>
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</tr>
<tr>
<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Crash in systemd 210 when ssh is disconnected
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>umut@tezduyar.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>general
</td>
</tr>
<tr>
<th>Product</th>
<td>systemd
</td>
</tr></table>
<p>
<div>
<pre>We started seeing frequent systemd crashes when ssh connections are closed. We
were able to get a stack trace and the signal number which is SIGSEGV. Stack
trace is telling me some kind of memory problem in systemd.
Systemd version 210.
ssh.service
[Unit]
Description=Per-Connection SSH Daemon
IgnoreOnIsolate=yes
After=sshdgenkeys.service
[Service]
ExecStart=-/usr/sbin/sshd -i
StandardInput=socket
KillMode=process
Stack trace:
#0 0x77f5daf8 in pause () from
target/mipsisa32r2el-axis-linux-gnu/lib/libpthread.so.0
#1 0x0049a480 in freeze () at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/shared/util.c:3440
#2 0x0046fc30 in crash.1636 (sig=<optimized out>) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/main.c:207
#3 <signal handler called>
#4 0x0046ad98 in unit_unwatch_pid (u=0xd44700, pid=21222) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/unit.c:1734
#5 0x004472c4 in invoke_sigchld_event.2765 (m=<optimized out>, u=0xd44700,
si=0x7f9da448) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/manager.c:1429
#6 0x0047265c in manager_dispatch_sigchld.2770 (m=m@entry=0xcbe230) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/manager.c:1477
#7 0x0045990c in manager_dispatch_signal_fd.part.32 (userdata=<optimized out>)
at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/manager.c:1723
#8 manager_dispatch_signal_fd.2718 (source=<optimized out>, fd=<optimized
out>, revents=<optimized out>, userdata=0xcbe230)
at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/manager.c:1508
#9 0x0046eb04 in source_dispatch (s=0xcbe770) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/libsystemd/sd-event/sd-event.c:1861
#10 0x0046f494 in sd_event_run (e=0xcbe4d8, timeout=<optimized out>) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/libsystemd/sd-event/sd-event.c:2117
#11 0x00407fb4 in manager_loop (m=0xcbe230) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/manager.c:1844
#12 main (argc=1, argv=0x7f9dab74) at
/home/antonn/axis/P3367_new/unpacked/apps/systemd-IR210-2/systemd/src/core/main.c:1704
Please close the bug if this has been fixed in new version of systemds.
Umut</pre>
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