Date: Sat, 18 Sep 2004 12:06:43 -0700 From: Sean McNeil <sean@mcneil.com> To: freebsd-current@freebsd.org Subject: ULE scheduler not quite there yet Message-ID: <1095534403.1151.4.camel@server.mcneil.com>
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I've had good luck with the 4BSD scheduler and PREEMPTION on so I thought I would try the ULE scheduler. Was up for just a short time before I got the following on my amd64 machine: Sep 18 11:58:54 server kernel: Fatal trap 12: page fault while in kernel mode Sep 18 11:58:54 server kernel: fault virtual address = 0x288 Sep 18 11:58:54 server kernel: fault code = supervisor read, page not present Sep 18 11:58:54 server kernel: instruction pointer = 0x8:0xffffffff803134fcSep 18 11:58:54 server kernel: stack pointer = 0x10:0xffffffffb1b988a0 Sep 18 11:58:54 server kernel: frame pointer = 0x10:0xffffffffb1b988b0 Sep 18 11:58:54 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Sep 18 11:58:54 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1 Sep 18 11:58:54 server kernel: processor eflags = resume, IOPL = 0 Sep 18 11:58:54 server kernel: current process = 37 (swi1: net) Sep 18 11:58:54 server kernel: trap number = 12 Sep 18 11:58:54 server kernel: panic: page fault Sep 18 11:58:54 server kernel: KDB: enter: panic Sep 18 11:58:54 server kernel: Sep 18 11:58:54 server kernel: Sep 18 11:58:54 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode Sep 18 11:58:54 server kernel: instruction pointer = 0x8:0xffffffff8031bb5fSep 18 11:58:54 server kernel: stack pointer = 0x10:0xffffffffb1b98620 Sep 18 11:58:54 server kernel: frame pointer = 0x10:0xffffffffb1b98630 Sep 18 11:58:54 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Sep 18 11:58:54 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1 Sep 18 11:58:54 server kernel: processor eflags = IOPL = 0 Sep 18 11:58:54 server kernel: current process = 37 (swi1: net) Sep 18 11:58:54 server kernel: trap number = 3 Sep 18 11:58:54 server kernel: panic: breakpoint instruction fault Sep 18 11:58:54 server kernel: KDB: enter: panic Sep 18 11:58:54 server kernel: Sep 18 11:58:54 server kernel: Sep 18 11:58:54 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode Sep 18 11:58:54 server kernel: instruction pointer = 0x8:0xffffffff8031bb5fSep 18 11:58:54 server kernel: stack pointer = 0x10:0xffffffffb1b983a0 Sep 18 11:58:54 server kernel: frame pointer = 0x10:0xffffffffb1b983b0 Sep 18 11:58:54 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Sep 18 11:58:54 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1 Sep 18 11:58:54 server kernel: processor eflags = IOPL = 0 Sep 18 11:58:54 server kernel: current process = 37 (swi1: net) Sep 18 11:58:54 server kernel: trap number = 3 Sep 18 11:58:54 server kernel: panic: breakpoint instruction fault Sep 18 11:58:54 server kernel: KDB: enter: panic Goes on for a while and then resets the computer. Cheers, Sean
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