Messages in this thread | | | From | "dada1" <> | Subject | Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata | Date | Thu, 11 Sep 2003 06:58:23 +0200 |
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From: "Andi Kleen" <ak@muc.de> > > Of course they may want to also fix it in a different way to run on older > kernels (e.g. handling the signal in user space or avoiding the conditions). > But doing it centrally in the kernel is a bit cleaner and at some point > people have to update their kernels anyways.
Could you be kind enough to post here the example code for a SIGSEGV handler that would be necessary for old kernels ?
I do think it woul help some people like me, for the future googling on the prefetch errata.
I do use preftechnta instructions on my programs, and this errata could explain some strange crashes.
As the program crashing is a huge multi-threaded network application, with up to 300000 opened TCP sockets, the SIGSEGV fault is usually followed by a system crash (networks buffers using all of lowmem)
Thanks Eric Dumazet
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