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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - disable_coredump=1 does not disable coredump on systemd"
href="https://bugs.llvm.org/show_bug.cgi?id=46452">46452</a>
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<th>Summary</th>
<td>disable_coredump=1 does not disable coredump on systemd
</td>
</tr>
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<th>Product</th>
<td>compiler-rt
</td>
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<th>Version</th>
<td>10.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>asan
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>ed@catmur.co.uk
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>(related: #44214)
If /proc/sys/kernel/core_pattern is a pipe (e.g. '|/usr/bin/coredump
<args...>') then setting RLIMIT_CORE to 0 does not actually disable coredumps;
they are still generated and passed to the coredump helper, which will then
send it to /dev/null (if written to respect RLIMIT_CORE).
Per <a href="https://github.com/systemd/systemd/issues/2643#issuecomment-234021824">https://github.com/systemd/systemd/issues/2643#issuecomment-234021824</a> the
solution is to set RLIMIT_CORE=1 (!) which will fully disable core dumping (no
core is generated, the coredump helper is not invoked, and si_code is
CLD_KILLED not CLD_DUMPED).</pre>
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