Date: Thu, 16 Sep 2004 15:07:48 -0700 From: Julian Elischer <julian@elischer.org> To: Joost Bekkers <joost@jodocus.org> Cc: freebsd-threads@freebsd.org Subject: Re: SIGILL @ pthread_create() after execv -FIXED- Message-ID: <414A0EB4.5060304@elischer.org> In-Reply-To: <20040916211757.GA4830@bps.jodocus.org> References: <20040912141838.GA89862@bps.jodocus.org> <414489FF.3090705@elischer.org> <414645C8.8070001@elischer.org> <20040914140002.GA32528@bps.jodocus.org> <41494310.40907@elischer.org> <20040916162828.GA855@bps.jodocus.org> <20040916211757.GA4830@bps.jodocus.org>
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Ick.
Joost Bekkers wrote:
>On Thu, Sep 16, 2004 at 06:28:28PM +0200, Joost Bekkers wrote:
>
>
>>On Thu, Sep 16, 2004 at 12:38:56AM -0700, Julian Elischer wrote:
>>
>>
>>>I checked in David's patch, which may fox this..
>>>try -current .
>>>
>>>
>>>
>>I'm not experiencing the problem anymore.
>>
>>
>>
>
>Celebrated too soon....
>
>Signals are not being delivered to the process after it did
>its execv.
>
>The only signal that seems to be working is KILL (-9)
>
the man page is: (for execve)
Signals set to be ignored in the calling process are set to be
ignored in
the new process. Signals which are set to be caught in the calling
process image are set to default action in the new process image.
Blocked signals remain blocked regardless of changes to the signal
action. The signal stack is reset to be undefined (see
sigaction(2) for
more information).
so we need to keep track of all signals accepted by the process (which is an
OR of the signals accepted by all the threads) and set it back to that
state
regardless of what thread is doing the exit.
(yuck that is quite a difficult question) I wonder if the "signal
gatherring thread"
has that info?
Maybe if the signal thread exits it should look to see if the process
is exec/exiting
(by looking at the thread_single mode) and transfer its mask to teh
'survicor' thread?
David?
>
>
>
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