Date: Sun, 8 Nov 1998 16:57:02 -0500 (EST) From: garman@earthling.net To: green@unixhelp.org Cc: eivind@yes.no, dg@root.com, jfieber@indiana.edu, current@FreeBSD.ORG Subject: Re: The infamous dying daemons bug Message-ID: <199811082345.PAA07927@hub.freebsd.org> In-Reply-To: <Pine.BSF.4.05.9811081144340.4580-100000@janus.syracuse.net>
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On 8 Nov, Brian Feldman wrote: > Is it just me or has noone actually captured the corefiles, compiled > whatever died -g, and tried to debug exactly what caused the sig11? Not > the underlying cause, just the "actual" cause (like a certain register > being a wrong value). > Yes, I have in my samba case. In the samba case, smbd attempts to allocate 56 bytes for a ServicePtrs array. This (apparently) fails (according to the log files)... and the segv occurs when later it attempts to dereference it. I lost the nice traces I did earlier (remember those null postings from me? :)) cause my mail client wasn't able to allocate memory for my message :) I had traces from both a "normal" samba which didn't exhibit the symptoms, and a "tainted" samba which did. The only thing different was the ServicePtrs array was NULL in the smbd that segfaulted. This happens when my swap is at 50-70% capacity, so i'm not running critically low on memory here. I can redo the smbd traces if there's interest. I'd really like to know whats going on, as smbd isn't the only thing involved; ssh refuses connections after a while (yet the daemon is still running; i haven't gdb'ed it yet, but i'm assuming its the same problems) thanks -- Jason Garman http://garman.dyn.ml.org/ Student, University of Maryland garman@earthling.net And now... did you know that: Whois: JAG145 "If you fart consistently for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb." -- 0xdeadbeef posting To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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