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Re: [Qemu-devel] [PATCH v5 3/4] QemuMutex: support --enable-debug-mutex


From: Emilio G. Cota
Subject: Re: [Qemu-devel] [PATCH v5 3/4] QemuMutex: support --enable-debug-mutex
Date: Tue, 24 Apr 2018 11:47:30 -0400
User-agent: Mutt/1.5.24 (2015-08-30)

On Tue, Apr 24, 2018 at 12:51:11 +0800, Peter Xu wrote:
> We have had some tracing tools for mutex but it's not easy to use them
> for e.g. dead locks.  Let's provide "--enable-debug-mutex" parameter
> when configure to allow QemuMutex to store the last owner that took
> specific lock.  It will be easy to use this tool to debug deadlocks
> since we can directly know who took the lock then as long as we can have
> a debugger attached to the process.
> 
> Signed-off-by: Peter Xu <address@hidden>

Reviewed-by: Emilio G. Cota <address@hidden>

                E.



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