From owner-freebsd-current Fri Nov 1 18: 6:16 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F20B737B401; Fri, 1 Nov 2002 18:06:13 -0800 (PST) Received: from obsecurity.dyndns.org (adsl-64-165-226-88.dsl.lsan03.pacbell.net [64.165.226.88]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5C83543E3B; Fri, 1 Nov 2002 18:06:13 -0800 (PST) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 6D77A66E0A; Fri, 1 Nov 2002 18:06:07 -0800 (PST) Date: Fri, 1 Nov 2002 18:06:07 -0800 From: Kris Kennaway To: sos@FreeBSD.org, current@FreeBSD.org Subject: panic from dd to ATA disk Message-ID: <20021102020607.GA61553@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="G4iJoqBmSsgzjUCe" Content-Disposition: inline User-Agent: Mutt/1.4i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --G4iJoqBmSsgzjUCe Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I'm getting the following panic on one of the bento cluster machines. The machine has a single drive: ad0: 29314MB [59560/16/63] at ata0-master UDMA66 and I have it set up to zero the disk at boot-time (the machine boots "diskless" via NFS): dd if=/dev/zero of=/dev/ad0 bs=64k load: 0.02 cmd: dd 413 [physstr] 0.01u 4.50s 0% 248k 31296+0 records in 31295+0 records out 2050949120 bytes transferred in 198.151980 secs (10350384 bytes/sec) ad0: WRITE command timeout tag=0 serv=0 - resetting ata0: resetting devices .. ad0: removed from configuration Fatal trap 12: page fault while in kernel mode fault virtual address = 0xdeadc0de fault code = supervisor read, page not present instruction pointer = 0x8:0xc01966e0 stack pointer = 0x10:0xcd235c48 frame pointer = 0x10:0xcd235c70 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 12 (swi6: tty:sio clock) kernel: type 12 trap, code=0 Stopped at ad_detach+0x50: cmpl %esi,0(%ebx) db> Context switches not allowed in the debugger. db> trace ad_detach(c0f18430,0,c03e028b,c2718cc0,c26dfa00) at ad_detach+0x50 ata_reinit(c0f18400,c2718cc0,c03e2333,0,0) at ata_reinit+0x9b ad_timeout(c2718cc0,0,c03fe6cb,bf,9f43) at ad_timeout+0x158 softclock(0,0,c03fb39c,230,c0f24a80) at softclock+0x19c ithread_loop(c0f17a00,cd235d48,c03fb0ed,354,ac64) at ithread_loop+0x182 fork_exit(c0238ab0,c0f17a00,cd235d48) at fork_exit+0xa5 fork_trampoline() at fork_trampoline+0x1a --- trap 0x1, eip = 0, esp = 0xcd235d7c, ebp = 0 --- --G4iJoqBmSsgzjUCe Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iD8DBQE9wzMOWry0BWjoQKURAtUTAKCqiGAT9HD1IQu7qS5K9UFLGrhXSACeN7re AxqeeHclgXzrHmFIT3UaRxo= =etJS -----END PGP SIGNATURE----- --G4iJoqBmSsgzjUCe-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message