It seems to be fixed already:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=1fdd4748711a62d863744
** Changed in: qemu
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1789751
Title:
Using -overcommit flag leads to qemu crashing
Status in QEMU:
Fix Committed
Bug description:
Running the following leads to a qemu crash on startup:
jwhite@laptop:~/os$ qemu-system-i386 -overcommit cpu-pm=on
qemu-system-i386: -overcommit cpu-pm=on: There is no option group 'overcommit'
Segmentation fault (core dumped)
jwhite@laptop:~/os$
This fixes the issue:
--- ../tmp/qemu-3.0.0/vl.c 2018-08-14 12:10:35.000000000 -0700
+++ vl.c 2018-08-29 14:59:30.151554120 -0700
@@ -2987,6 +2987,7 @@
qemu_add_opts(&qemu_object_opts);
qemu_add_opts(&qemu_tpmdev_opts);
qemu_add_opts(&qemu_realtime_opts);
+ qemu_add_opts(&qemu_overcommit_opts);
qemu_add_opts(&qemu_msg_opts);
qemu_add_opts(&qemu_name_opts);
qemu_add_opts(&qemu_numa_opts);
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