Date: Fri, 14 Jan 2005 13:02:08 +1000 From: Matthew Sullivan <matthew@uq.edu.au> Cc: freebsd-current@freebsd.org Subject: Re: Fatal Trap 12: Page fault while in kernel mode (racoon/amd64/5.3-RELEASE-p4) Message-ID: <41E73630.7050301@uq.edu.au> In-Reply-To: <4781326B-65D4-11D9-A004-000D93C47836@xcllnt.net> References: <41E44CD0.1000008@uq.edu.au> <41E5F22A.6010607@uq.edu.au> <20050113093955.P12838@carver.gumbysoft.com> <41E721A7.3010302@uq.edu.au> <4781326B-65D4-11D9-A004-000D93C47836@xcllnt.net>
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This is a cryptographically signed message in MIME format. --------------ms040203020202010905010202 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Marcel Moolenaar wrote: > On Jan 13, 2005, at 5:34 PM, Matthew Sullivan wrote: > >>> >>> Hm, null pointer+offset dereference. Are you using IPSEC or >>> FAST_IPSEC in >>> your kernel? When did you grab the sources last? >>> >> IPSEC (see: http://www.au.sorbs.net/~matthew/freebsd/ for all kernel, >> config, cores and info I can give) >> >> Source was updated after finding this issue (within the last 10 days) >> and it made no difference. > > > Note that "setkey -D" should be enough to trigger the page fault on > amd64. > Note also that i386 and ia64 don't have this problem. I don't know about > alpha or sparc64, but it looks amd64 specific. Yup, with the same config there was no issue on my PII 450 so I guessed it was either AMD64 or a general 64-Bit issue and the setkey -D ... you're not wrong ;-) Fatal trap 12: page fault while in kernel mode fault virtual address = 0x39 fault code = supervisor write, page not present instruction pointer = 0x8:0xffffffff80307a70 stack pointer = 0x10:0xffffffff94f08860 frame pointer = 0x10:0xffffffff94f08960 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 2736 (setkey) [thread 100095] Stopped at keydb_newsecasvar+0x100: decl %ecx db> where keydb_newsecasvar() at keydb_newsecasvar+0x100 raw_usend() at raw_usend+0x60 key_send() at key_send+0xa sosend() at sosend+0x626 kern_sendit() at kern_sendit+0x113 sendit() at sendit+0x5f sendto() at sendto+0x4d syscall() at syscall+0x50c Xfast_syscall() at Xfast_syscall+0xa8 --- syscall (133, FreeBSD ELF64, sendto), rip = 0x80079cda8, rsp = 0x7fffffff6c58, rbp = 0x7fffffffed20 --- Regards, -- Matthew Sullivan Specialist Systems Programmer Information Technology Services The University of Queensland --------------ms040203020202010905010202 Content-Type: application/x-pkcs7-signature; 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