Date: Thu, 6 Apr 2000 10:23:51 +1000 (EST) From: Bruce Campbell <bc-freebsd@vicious.dropbear.id.au> To: freebsd-mobile@freebsd.org Subject: Re: obscure panics under 4.0-STABLE Message-ID: <Pine.BSF.4.21.0004060955450.7241-100000@julubu.staff.apnic.net> In-Reply-To: <Pine.BSF.4.21.0004031952521.5073-100000@julubu.staff.apnic.net>
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On Mon, 3 Apr 2000, Bruce Campbell wrote: bc> Unrelated to my previous message, I've been experiencing odd panics on a bc> 4.0-STABLE system whenever particular network processes (using promiscious bc> mode) are specifically killed, specifically 'arpwatch' and 'tcpdump'. bc> bc> I'm not sure whether its a few suspend/resume cycles, a busy network, or bc> changing IP address which is the initial trigger for the problem (which I bc> cannot duplicate right now, in accordance with Murphy's Law). Further information, it does appear to require a few suspend/resume cycles to trigger a panic, ie, the below is attempting to kill tcpdump after tcpdump has been running on a very unloaded network, then suspend/resumed[1]: Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x8:0x0 stack pointer = 0x10:0xc931bd5c frame pointer = 0x10:0xc931bd94 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 424 (tcpdump) interrupt mask = net tty trap number = 12 panic: page fault syncing disks ... 6 6 4 done Uptime: 10h55m3s 4.0-STABLE, painstakenly (P133) compiled from cvs. --==-- Bruce. [1] The wonders of sending one's laptop off to diagnose someone else's home network. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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