Date: Thu, 5 Jan 2006 21:16:42 GMT From: John Baldwin <jhb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 89233 for review Message-ID: <200601052116.k05LGgp5045699@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=89233 Change 89233 by jhb@jhb_slimer on 2006/01/05 21:16:19 Add a note about a panic I just ran into on alpha. Affected files ... .. //depot/projects/smpng/sys/kern/kern_proc.c#81 edit Differences ... ==== //depot/projects/smpng/sys/kern/kern_proc.c#81 (text+ko) ==== @@ -907,6 +907,12 @@ error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc, sizeof(kinfo_proc)); } else { + /* + * XXX: Can't call copyout() here on alpha with sched_lock + * held since we can get a pmap_emulate_reference() fault + * when we write to the page. Need to ask alc@ about how + * best to handle this. + */ mtx_lock_spin(&sched_lock); if (FIRST_THREAD_IN_PROC(p) != NULL) FOREACH_THREAD_IN_PROC(p, td) {
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