Date: Thu, 04 Nov 2004 10:25:01 -0800 From: Julian Elischer <julian@elischer.org> To: Ken Smith <kensmith@cse.Buffalo.EDU> Cc: re@freebsd.org Subject: Re: [FreeBSD 5.3-RC2] Processes STILL hanging in unkillable state Message-ID: <418A73FD.2070201@elischer.org> In-Reply-To: <20041104144605.GF24440@electra.cse.Buffalo.EDU> References: <200411020143.34251.gte990t@mail.gatech.edu> <200411040329.21834.michaelnottebrock@gmx.net> <4189CCB8.2050104@alexdupre.com> <200411041534.30965.michaelnottebrock@gmx.net> <20041104144605.GF24440@electra.cse.Buffalo.EDU>
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Ken Smith wrote:
>On Thu, Nov 04, 2004 at 03:34:26PM +0100, Michael Nottebrock wrote:
>
>
>>On Thursday, 4. November 2004 07:31, Alex Dupre wrote:
>>
>>
>>>Michael Nottebrock wrote:
>>>
>>>
>>>>Could all people who are seeing this please post their kernel
>>>>configurations, sysctl.conf and perhaps some system details (platform,
>>>>UP/MP), too.
>>>>
>>>>
>>Looking at all of these, I fail to see anything "special" that all these
>>machines have in common - looks like there's a full range from tuned
>>configurations with eyebrowraisers like PREEMPTION to almost-unmodified
>>GENERIC and pretty different hardware, too. :(
>>
>>So if anybody spots something interesting here after all, or thinks Marc
>>Ramirez backtraces / debug sessions reveal anything about the bug, please
>>take over...
>>
>>
if you can get to teh kernel debugger on a serial link, (there is a
sysctl to drop yuo into it) then
the appropriate lines of 'ps' would be interesting.
also x/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx {address}
where address is the address of the ksegrp in question (in threaded
processes) myght be interesting.
(you can get that from the ps in ddb)
>>
>>
>
>In particular if you manage to wedge processes in an unkillable state
>the output of "ps -o f -l" might be useful. I'd like to see all of the
>flags set for a process that gets wedged.
>
>
please also add the -H option to show the threads in question.
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