Date: Thu, 14 May 2009 09:17:53 -0700 (PDT) From: Chris Timmons <cwt@networks.cwu.edu> To: John Baldwin <jhb@freebsd.org> Cc: stable@freebsd.org, freebsd-stable@freebsd.org, Martin Sugioarto <nakal@web.de> Subject: Re: kernel trap 12 with interrupts disabled [bge0 on 7.2R] Message-ID: <20090514091410.H12558@n.cwu.edu> In-Reply-To: <200905140916.40594.jhb@freebsd.org> References: <1696198956@web.de> <200905140916.40594.jhb@freebsd.org>
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Yesterday I updated a rock-solid machine (uptime hundreds of days) from 7-stable circa July, 2008, to the latest stable. I run Nessus on this machine, with about 60 concurrent scans. It pushes the load average up as high as 20 for short periods of time, but overall is reasonably efficient. I have never had the box become unresponsive, let alone crash, under any load scenario. This morning, I ran my first scan on 7.2-stable, with Nessus 4.0. It lasted about 30 seconds before: Fatal trap 12: page fault while in kernel mode cpuid = 2; apic id = 06 fault virtual address = 0x1c fault code = supervisor read, page not present instruction pointer = 0x20:0xc07a4dac stack pointer = 0x28:0xee156ad4 frame pointer = 0x28:0xee156ad8 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 = 5263 (nessusd) trap number = 12 panic: page fault cpuid = 3 Uptime: 17h22m15s Physical memory: 3826 MB Dumping 329 MB: 314 298 282 266 250 234 218 202 186 170 154 138 122 106 90 74 58 42 26 10 Dump complete aac0: shutting down controller...done Automatic reboot in 15 seconds - press a key on the console to abort Rebooting... cpu_reset: Stopping other CPUs -c On Thu, 14 May 2009, John Baldwin wrote: > Given that that is a single bit set, it could possibly be due to bad RAM. > Does your kernel have debug symbols? If so, running 'l *0xffffffff80186249' > (from the 'instruction pointer' line in the fault message) would be helpful. > >> fault code = supervisor write data, page not present >> instruction pointer = 0x8:0xffffffff80186249 >> stack pointer = 0x10:0xffffffff8065f200 >> frame pointer = 0x10:0x36ee7f >> code segment = base 0x0, limit 0xfffff, type 0x1b >> = DPL 0, pres 1, long 1, def32 0, gran 1 >> processor eflags = resume, IOPL = 0 >> current process = 26 (irq256: bge0) >> trap number = 12 >> p[*CURSOR STOPPED HERE*] > > -- > John Baldwin > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >
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