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Date: Mon, 10 Mar 2008 23:16:54 +0100 From: Chr <chunkeey@....de> To: linux-kernel@...r.kernel.org Subject: endless loop in native_flush_tlb_others in smp_64.c Hi, ever since I moved to 2.6.25-rcY (Y should be between 2 and 5!). I've seen several, but really hard-to-catch instant freezes on my AMD64 Athlon X2 4200+ system... Most of them happend in X.org so at first I thought it had something to do with the NVIDIA module... BUT, one time it froze "a way before" the module could get loaded (and desynced my raid.......). --- SYSRQ-P revealed that the CPU were looping inside: smp_64.c native_flush_tlb_others: assembler code: < 1ee: f3 90 pause < 1f0: f6 45 00 03 testb $0x3,0x0(%rbp) < 1f4: 75 f8 jne 1ee <native_flush_tlb_others+0x5f> also known as: (in C) while (!cpus_empty(f->flush_cpumask)) cpu_relax(); So... has anyone a good idea what's happening here exactly? Or is there already another topic or even a patch available? Regards, Chr. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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