Gregory Haskins <ghaskins@xxxxxxxxxx> writes: > *Patch submitted for inclusion in PREEMPT_RT 26-rt4. Applies to 2.6.26.3-rt3* > > Hi Ingo, Steven, Thomas, > Please consider for -rt4. This fixes a nasty deadlock on my systems under > heavy load. Does this even work under x86-64? x86-64 uses seqlocks in user space in its vsyscalls. And read_lock() definitely doesn't work there because it writes. You would need at least to disable vsyscall gettimeofday(), making it much much slower. Perhaps you tested on one of the systems where the vsyscalls need to fallback for other reasons? (e.g. one using pmtimer for timing). -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
