Re: [PATCH] conf: Add qemu_job_wait_time option

The waiting time to acquire the lock times out, which leads to a segment fault.

In essence we should make improvements around locks, but as a workaround we will change the timeout to allow the user to increase it. This value was defined as 30 seconds, so use it as the default value. The logs are as follows: ``` Timed out during operation: cannot acquire state change lock \ (held by monitor=remoteDispatchDomainCreateWithFlags) libvirtd.service: main process exited, code=killed,status=11/SEGV ```

Signed-off-by: MIKI Nobuhiro <nmiki(a)yahoo-corp.jp&gt; --- docs/news.xml | 9 +++++++++ src/qemu/libvirtd_qemu.aug | 1 + src/qemu/qemu.conf | 3 +++ src/qemu/qemu_conf.c | 3 +++ src/qemu/qemu_conf.h | 2 ++ src/qemu/qemu_domain.c | 7 ++----- src/qemu/test_libvirtd_qemu.aug.in | 1 + 7 files changed, 21 insertions(+), 5 deletions(-) diff --git a/docs/news.xml b/docs/news.xml index 80819ae..3755c49 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -119,6 +119,15 @@ Bounds Checking) and IBS (Indirect Branch Speculation). </description> </change> + <change> + <summary> + conf: Add job wait time setting to qemu.conf + </summary> + <description> + How many seconds the new job waits for the existing job to finish. + This only affects if you are using qemu as driver. + </description> + </change> </section> <section title="Improvements"> </section>

diff --git a/src/qemu/libvirtd_qemu.aug b/src/qemu/libvirtd_qemu.aug index 404498b..76c896e 100644 --- a/src/qemu/libvirtd_qemu.aug +++ b/src/qemu/libvirtd_qemu.aug @@ -97,6 +97,7 @@ module Libvirtd_qemu = | bool_entry "dump_guest_core" | str_entry "stdio_handler" | int_entry "max_threads_per_process" + | int_entry "qemu_job_wait_time" let device_entry = bool_entry "mac_filter" | bool_entry "relaxed_acs_check" diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf index abdbf07..a05aaa5 100644 --- a/src/qemu/qemu.conf +++ b/src/qemu/qemu.conf @@ -612,6 +612,9 @@ # #max_threads_per_process = 0 +# How many seconds the new job waits for the existing job to finish. +#qemu_job_wait_time = 30 + # If max_core is set to a non-zero integer, then QEMU will be # permitted to create core dumps when it crashes, provided its # RAM size is smaller than the limit set.