From owner-freebsd-current Tue Jul 6 0:46:50 1999 Delivered-To: freebsd-current@freebsd.org Received: from ren.detir.qld.gov.au (ns.detir.qld.gov.au [203.46.81.66]) by hub.freebsd.org (Postfix) with ESMTP id BA1DE14C37 for ; Tue, 6 Jul 1999 00:46:46 -0700 (PDT) (envelope-from syssgm@detir.qld.gov.au) Received: by ren.detir.qld.gov.au; id RAA08638; Tue, 6 Jul 1999 17:45:50 +1000 (EST) Received: from ogre.detir.qld.gov.au(167.123.8.3) by ren.detir.qld.gov.au via smap (3.2) id xma008633; Tue, 6 Jul 99 17:45:30 +1000 Received: from atlas.detir.qld.gov.au (atlas.detir.qld.gov.au [167.123.8.9]) by ogre.detir.qld.gov.au (8.8.8/8.8.7) with ESMTP id RAA19257 for ; Tue, 6 Jul 1999 17:45:24 +1000 (EST) Received: from nymph.detir.qld.gov.au (nymph.detir.qld.gov.au [167.123.10.10]) by atlas.detir.qld.gov.au (8.8.5/8.8.5) with ESMTP id RAA19183 for ; Tue, 6 Jul 1999 17:45:12 +1000 (EST) Received: from nymph.detir.qld.gov.au (localhost.detir.qld.gov.au [127.0.0.1]) by nymph.detir.qld.gov.au (8.8.8/8.8.7) with ESMTP id RAA12161; Tue, 6 Jul 1999 17:45:11 +1000 (EST) (envelope-from syssgm@nymph.detir.qld.gov.au) Message-Id: <199907060745.RAA12161@nymph.detir.qld.gov.au> To: freebsd-current@freebsd.org Cc: syssgm@detir.qld.gov.au Subject: Re: Stuck in "objtrm" References: <199907021200.WAA06282@nymph.detir.qld.gov.au> In-Reply-To: <199907021200.WAA06282@nymph.detir.qld.gov.au> from Stephen McKay at "Fri, 02 Jul 1999 22:00:04 +1000" Date: Tue, 06 Jul 1999 17:45:11 +1000 From: Stephen McKay Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Friday, 2nd July 1999, Stephen McKay wrote: >I have an old 486 here that I thrash to death occasionally. Well, at least >I try to get it to page to death. I started a make world last week and >forgot about it. > >Today I noticed that it's been stuck for most of the week. Almost everything >is fine, but one cc1 process is stuck in "objtrm". Oh, and I hung a "cat >/proc/31624/map", too, trying to get some details (now stuck in "thrd_sleep"). > >So, am I just tripping over some old long-fixed bug? Or is this a new one >worth investigating? The kernel is from 1999/06/16 (just before the >vfs_cluster.c commit). Well, it's happened again, but this time it is a recent -current, less than a day old. After a couple hours of heavy paging (yes, this is a slow box), the make world hangs with cc1 in "objtrm". All the other processes seem to be waiting for it to exit. It's the only cc1 around, by the way, even though it was a -j5 parallel compile. All other machine functions are fine. ps, top, vmstat, et al show normal looking values. Does anybody have any hints on how to debug this? I know that "objtrm" implies that paging is in progress on some object, even though there's no paging happening, and so it's probably an accounting error with object->paging_in_progress. But other than that, I'm not sure where to look. Stephen. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message