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[Qemu-devel] [PATCH] qtest: Fix deadloop by running main loop AIO contex
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH] qtest: Fix deadloop by running main loop AIO context's timers |
Date: |
Fri, 16 Jan 2015 16:01:17 +0800 |
qemu_clock_run_timers() only takes care of main_loop_tlg, we shouldn't
forget aio timer list groups.
Currently, the qemu_clock_deadline_ns_all (a few lines above) counts all
the timergroups of this clock type, including aio tlg, but we don't fire
them, so they are never cleared, which makes a dead loop.
For example, this function hangs when trying to drive throttled block
request queue with qtest clock_step.
Signed-off-by: Fam Zheng <address@hidden>
---
cpus.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/cpus.c b/cpus.c
index 3a5323b..dd7e595 100644
--- a/cpus.c
+++ b/cpus.c
@@ -387,6 +387,7 @@ void qtest_clock_warp(int64_t dest)
seqlock_write_unlock(&timers_state.vm_clock_seqlock);
qemu_clock_run_timers(QEMU_CLOCK_VIRTUAL);
+ timerlistgroup_run_timers(&qemu_get_aio_context()->tlg);
clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
}
qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
--
1.9.3
- [Qemu-devel] [PATCH] qtest: Fix deadloop by running main loop AIO context's timers,
Fam Zheng <=