Messages in this thread | | | Date | Mon, 5 Mar 2012 15:01:30 +0100 | From | Tomáš Janoušek <> | Subject | Re: iwlagn: memory corruption with WPA enterprise |
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Hi,
On Tue, Feb 14, 2012 at 10:20:21AM +0100, Stanislaw Gruszka wrote: > > So it doesn't look like a memory corruption after all. It > > seems as if certain CPU instructions didn't work properly if running on a > > 32-bit kernel with a WiFi adapter doing something. But how can it be > > that those same CPU instructions work on a 64-bit host with 32-bit userspace? > > At the same time! That's just completely insane, and I can't think of an > > explanation. Shall I get a new CPU perhaps? :-) > > > > > > Please, give me any ideas that you might have. > > That make sense! Your "CPU instructions break things" theory sounds crazy, > but I think it's logical. WPA enterprise differ from WPA-PSA (pre shared > key) that the key changed periodically, SSL is used when keys are changed > (via wpa_supplicant). So looks like 32-bit openssl generate object code > that trigger bug on CPU, which crash other processes.
It seems that someone beat me to it. Since Linus fixed the FPU leaks in 3.3-rc4, I haven't experienced the problem. And I was this close! :-)
Anyway, thanks for assistance and sorry for being so slow to respond.
Regards, -- Tomáš Janoušek, a.k.a. Liskni_si, http://work.lisk.in/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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