Date: Mon, 5 Mar 2007 12:02:37 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Peter Losher <plosher@plosh.net> Cc: freebsd-stable@freebsd.org Subject: Re: 'panic: bad pte' error on 6.2-RELEASE (amd64) Message-ID: <20070305100237.GI10453@deviant.kiev.zoral.com.ua> In-Reply-To: <45EBCF4C.9000901@plosh.net> References: <45EBCF4C.9000901@plosh.net>
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[-- Attachment #1 --] On Mon, Mar 05, 2007 at 12:05:32AM -0800, Peter Losher wrote: > We recently updated one of our dual Opteron systems (w/ 4GB RAM) from > 5.5 to 6.2 (amd64 wipe and reinstalled) and about once a week, it panics > with the below message: > > -=- > TPTE at 0xffff8000040028a0 IS ZERO @ VA 800514000 > panic: bad pte > cpuid = 2 > KDB: stack backtrace: > panic() at 0xffffffff803fdd03 = panic+0x253 > pmap_remove_pages() at 0xffffffff806072a3 = pmap_remove_pages+0x283 > exec_new_vmspace() at 0xffffffff803e18e6 = exec_new_vmspace+0x216 > exec_elf64_imgact() at 0xffffffff803cbb73 = exec_elf64_imgact+0x273 > kern_execve() at 0xffffffff803e2107 = kern_execve+0x457 > execve() at 0xffffffff803e2bed = execve+0x5d > syscall() at 0xffffffff8060d141 = syscall+0x4d1 > Xfast_syscall() at 0xffffffff805f8128 = Xfast_syscall+0xa8 > --- syscall (59, FreeBSD ELF64, execve), rip = 0x80069838c, rsp = > 0x7fffffffe7c8, rbp = 0x7fffffffecd0 --- > Uptime: 4d16h55m46s > -=- > > I do have a dump, and can make that available if need be. Has anyone > encountered this recently and can shed any light on what might be > causing this? Did rev. 1.516.2.9 of sys/amd64/amd64/pmap.c changed (or even fixed) the problem ? (This is the same patch I already sent you). [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFF6+q9C3+MBN1Mb4gRAmHvAJ0S78ULyXqmhExDG0xu4QotAIe5KQCeIwLL u+phzUrUe8EFILFXqeVzeHA= =mIup -----END PGP SIGNATURE-----
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