Date: Thu, 16 Sep 2010 10:17:39 -0700 From: Patrick Mahan <pmahan@adaranet.com> To: John Baldwin <jhb@freebsd.org> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: odd issues with DDB vs GDB Message-ID: <4C925133.4060309@adaranet.com> In-Reply-To: <201009160815.18679.jhb@freebsd.org> References: <4C915E4F.9030006@adaranet.com> <201009160815.18679.jhb@freebsd.org>
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John Baldwin wrote: > On Wednesday, September 15, 2010 8:01:19 pm Patrick Mahan wrote: >> All, >> >> I am trying to debug a system hang occurring on my HP Proliant G6 running some of our >> kernel software. I am seeing that under certain test loads, the system will hang-up >> complete, no keyboard, no console, etc. I suspect it is some of the kernel code that >> I have inherited that contains a lot of locking (lots of data structure, each having >> their own mutex lock (sleepable)). > > You need to use 'kgdb' rather than 'gdb' on kernel.debug. > Doh! *-( I'm so used to gdb even though I use kgdb for looking at crash dumps. Thanks, Patrick
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