Date: Sun, 29 Jan 2006 20:12:52 +0100 From: Christian Brueffer <chris@unixpages.org> To: stable@freebsd.org Subject: nfs trap: page fault while in kernel mode Message-ID: <20060129191252.GA1014@haakonia.hitnet.RWTH-Aachen.DE>
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--Kj7319i9nmIyA2yE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, got the following trap on a 6-STABLE SMP system. I was copying data =66rom a 7-CURRENT machine to the server via NFS. System build of sources from about Sat Jan 28 13:07:02 CET. (transcribed by hand, typos possible) Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0xdeadc0de fault code =3D supervisor write, page not present instruction pointer =3D 0x20:0xc0716370 stack pointer =3D 0x28:0xd449db84 frame pointer =3D 0x28:0xd449db84 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, def32 1, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 32 (irq20: sf0) [thread pid 32 tid 100020 ] Stopped at trash_dtor+0x10 movl $0xdeadc0de,0(%edx) db> tr Tracing pid 32 tid 100020 td 0xc330a480 trash_dtor(deadc0de,800,0,d449dbb4,c059591c) at trash_dtor+0x10 trash_init(deadc0de,800,1,7f,7c) at trash_init+0x20 mb_zinit_pack(c38b2700,100,1,863,d449dbe8) at mb_zinit_pack+0x4c uma_zalloc_bucket(c104d000,1,c07db3bc,761,d449dc1c) at uma_zalloc_bucket+0x= 1de uma_zalloc_arg(c104d000,d449dc44,1,d449dc4c,c0596fbd) at uma_zalloc_arg+0x3= 99 m_devget(c3790808,5ea,2,c3401400,0) at m_devget+0x90 sf_rxeof(8100,0,c09663ca,47b,c3403580) at sf_rxeof+0x1a0 sf_intr(c33eb700,0,c07c1a18,255,d449dd00) at sf_intr+0x1b7 ithread_loop(c3345380,d449dd38,c07c17e7,30d,ffffffff) at ithread_loop+0x182 fork_exit(c0586ee0,c3345380,d449dd38) at fork_exit+0xc1 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip =3D 0, esp =3D 0xd449dd6c, ebp =3D 0 --- db> - Christian --=20 Christian Brueffer chris@unixpages.org brueffer@FreeBSD.org GPG Key: http://people.freebsd.org/~brueffer/brueffer.key.asc GPG Fingerprint: A5C8 2099 19FF AACA F41B B29B 6C76 178C A0ED 982D --Kj7319i9nmIyA2yE Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFD3RO0bHYXjKDtmC0RAuPIAJ0cNaVhzTMarvqoErBEuHfnn2eriwCfTRZ8 ZQqSL3pvfo94UcJtMW9Ne4U= =dMX1 -----END PGP SIGNATURE----- --Kj7319i9nmIyA2yE--
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