From: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
To: Jeff Dike <jdike@addtoit.com>
Cc: "Stroesser, Bodo" <Bodo.Stroesser@fujitsu-siemens.com>,
user-mode-linux-devel@lists.sourceforge.net,
BlaisorBlade <blaisorblade_spam@yahoo.it>
Subject: Re: [uml-devel] Panic while core dumping in tt-mode
Date: Wed, 13 Oct 2004 18:55:54 +0200 [thread overview]
Message-ID: <416D5E1A.9020507@fujitsu-siemens.com> (raw)
In-Reply-To: <200410122334.i9CNYE3P004286@ccure.user-mode-linux.org>
Jeff Dike wrote:
> Bodo.Stroesser@fujitsu-siemens.com said:
>
>>No, silly speculation! The real reason is, that in signal delivery no
>>fp-status is written and the pointer to the fp-status in the
>>signalcontext is set to NULL, if a thread had never used the fp-regs.
>>Easy to fix that, but what with the other issues: - In skas fpregs
>>never are dumped. (Instead random data is written
>> to core) - dumping the register sets of other threads running in the
>>same
>> thread group and mm is not supported - fpxregs are not dumped. They
>>could be dumped "if (have_fpx_regs)"
>> (from arch/um/os-Linux/sys-i386/registers.c) Should I try a fix?
>>Does it make sense to fix all this?
>
>
> It does. I just haven't bothered because no one has complained about it and
> the fp stuff is ugly.
>
> Jeff
OK. I will try to fix it.
Bodo
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next prev parent reply other threads:[~2004-10-13 16:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-07 16:13 [uml-devel] Panic while core dumping in tt-mode Stroesser, Bodo
2004-10-12 23:34 ` Jeff Dike
2004-10-13 16:55 ` Bodo Stroesser [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-10-06 12:57 Stroesser, Bodo
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