Date: Sun, 25 Apr 1999 20:31:28 -0700 From: "Greg Shaffer" <gshaffer@leaky.com> To: <current@freebsd.org> Cc: <gshaffer@leaky.com> Subject: Fatal Trap 12 Message-ID: <000101be8f95$45256410$024ab8c7@aegis.leaky.com>
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I updated my source tree, successfully did a make buildworld and installworld. Rebuilt the kernel. Upon reboot I encountered the following trap. Fatal Trap 12: page fault while in kernel mode mp_lock = 00000002; cpuid = 0; lapic.id = 00000000 fault virtual address = 0xbfc00000 fault code = supervisor read, page not present instruction pointer = 0x8:0xc01dc935 stack pointer = 0x10:0xc0295ed8 frame pointer = 0x10:0xc0295ed8 code segment = base 0x0 limit 0xfffff type 0x1b = DPL 0, page 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL=0 current process = 0 () interrupt mask = net tty bio cam <- SMP:XXX trap number = 12 mp_lock = 00000002; cpuid = 0; lapic.id = 00000000 When it dropped into ddb I got the following: stopped at kvtop+0x2d: movl PTmap(,%eax,4),%edx At trace in ddb provides the following: kvtop(0) at kvtop+0x2d isa_compat_probe(...) at isa_compat_probe+0x297 DEVICE_PROBE(...) at DEVICE_PROBE+0x25 device_probe_child(...) at device_probe_child+0x4a device_probe_and_attach(...) at device_probe_and_attach+0x25 bus_generic_attach(...) at bus_generic_attach+0x16 configure(0) at configure+0x46 main at main+0x83 begin at begin+0x55 This is an dual 233MMX system with hardware I have been using for several years without any problems. The last kernel I built was on 4 April. Everything worked fine. Also, the GENERIC kernel does works. I have looked through my config file and compared it against GENERIC and nothing seems to be out of wack. The fault occured right after probing the ppbus. I thought that might be the problem, but commenting out the ppbus stuff does not prevent it from faulting. Any suggenstions would be appriciated. Thanks Greg Shaffer To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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