[systemd-devel] systemd-coredump, coredump is truncated to exactly 2GiB

[Chris Murphy]

qemu-system-x86 core dumped on me for some reason, and I see it in the journal:

Jul 22 13:24:30 f24m systemd-coredump[3914]: Process 3829
(qemu-system-x86) of user 107 dumped core.

OK no problem.

[chris at f24m ~]$ sudo coredumpctl gdb 3829
[...snip...]
BFD: Warning: /var/tmp/coredump-DtRBEA is truncated: expected core
file size >= 4115308544, found: 2147483648.

OK let's extract the coredump to its own file:

# sudo coredumpctl -o qemu-system-x86.coredump dump /usr/bin/qemu-system-x86_64
# ls -l
-rw-r--r--. 1 chris chris 2147483648 Jul 22 14:08 qemu-system-x86.coredump

Huh, 2147483648 is 0x80000000 or exactly 2GiB. Suspicious? Is there a
misconfiguration of some kind causing this truncation? Or?

This is Fedora 24, systemd-229-8.fc24.x86_64


-- 
Chris Murphy