From owner-freebsd-questions Thu May 6 21:11: 5 1999 Delivered-To: freebsd-questions@freebsd.org Received: from kamidake.apricot.com (kamidake.apricot.com [170.1.160.36]) by hub.freebsd.org (Postfix) with ESMTP id 67E2614A14 for ; Thu, 6 May 1999 21:11:03 -0700 (PDT) (envelope-from scanner@apricot.com) Received: from ryoohki.apricot.com (root@ryoohki.apricot.com [170.1.160.34]) by kamidake.apricot.com (8.8.8/8.8.8) with ESMTP id VAA24029 for ; Thu, 6 May 1999 21:11:02 -0700 (PDT) Received: from ryoohki.apricot.com (scanner@localhost [127.0.0.1]) by ryoohki.apricot.com (8.8.8/8.8.8) with ESMTP id VAA03860 for ; Thu, 6 May 1999 21:11:01 -0700 (PDT) Message-Id: <199905070411.VAA03860@ryoohki.apricot.com> X-Mailer: exmh version 2.0.2 2/24/98 To: questions@freebsd.org Subject: machine crashes on heavy use of nfs exported cdrom? Reply-To: scanner@apricot.com X-URI: http://www.apricot.com/~scanner/ X-Face: 6K2.ZvQgQ.NDQLIx.1pW(xRu*">:}&PX-Ad_!!?wU7H4L"wF"0xEwYu=8Or0V+=5?-eO1XL 7-0Hom/|]B2C7Uznyol-NVnvEk:+sod^MyB4v4qVpPDemr;b@pZdRSXu.'Gm^t0?2l,j[&t.kbc[UW x6Lz^e$K$W Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 06 May 1999 21:11:00 -0700 From: Scanner Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello, I have been having problems where if I nfs export a cd rom that I have mounted, and then do a fair amount of reads on this cd the system will crash. This is running a slightly out of date version of FreeBSD (2.2.6) but as it is a heavily used machine and otherwise works perfectly I have been loathe to upgrade it. Does anyone know of a problem with FreeBSD being used to NFS serve cd roms? If so, has this been fixed in a later release? Looking in /var/log/messages I found these errors for the cd rom mounted. (This is on a Nakamichi 4 cd scsi cdrom.. I have seen the same problem on a plain single cd cdrom drive as well.. both scsi attached.) May 4 11:46:27 kamidake /kernel: cd3(ahc0:2:3): SCB 0x3 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x0 May 4 11:46:27 kamidake /kernel: SEQADDR = 0x4 SCSISEQ = 0x12 SSTAT0 = 0x5 SSTA T1 = 0xa May 4 11:46:27 kamidake /kernel: cd3(ahc0:2:3): Queueing an Abort SCB May 4 11:46:27 kamidake /kernel: cd3(ahc0:2:3): Abort Message Sent May 4 11:46:27 kamidake /kernel: cd3(ahc0:2:3): SCB 3 - Abort Completed. May 4 11:46:27 kamidake /kernel: cd3(ahc0:2:3): no longer in timeout May 4 11:46:57 kamidake /kernel: cd3(ahc0:2:3): SCB 0x3 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x0 May 4 11:46:57 kamidake /kernel: SEQADDR = 0x8 SCSISEQ = 0x12 SSTAT0 = 0x5 SSTA T1 = 0xa May 4 11:46:57 kamidake /kernel: cd3(ahc0:2:3): Queueing an Abort SCB May 4 11:46:57 kamidake /kernel: cd3(ahc0:2:3): Abort Message Sent May 4 11:46:57 kamidake /kernel: cd3(ahc0:2:3): SCB 3 - Abort Completed. May 4 11:46:57 kamidake /kernel: cd3(ahc0:2:3): no longer in timeout May 4 11:46:57 kamidake /kernel: fhtovp: bread error 5 May 4 11:47:27 kamidake /kernel: cd3(ahc0:2:3): SCB 0x3 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x0 May 4 11:47:27 kamidake /kernel: SEQADDR = 0x7 SCSISEQ = 0x12 SSTAT0 = 0x5 SSTA T1 = 0xa May 4 11:47:27 kamidake /kernel: cd3(ahc0:2:3): Queueing an Abort SCB May 4 11:47:27 kamidake /kernel: cd3(ahc0:2:3): Abort Message Sent May 4 11:47:27 kamidake /kernel: cd3(ahc0:2:3): SCB 3 - Abort Completed. May 4 11:47:27 kamidake /kernel: cd3(ahc0:2:3): no longer in timeout May 4 11:48:05 kamidake /kernel: cd3(ahc0:2:3): SCB 0x3 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x0 May 4 11:48:05 kamidake /kernel: SEQADDR = 0x8 SCSISEQ = 0x12 SSTAT0 = 0x5 SSTA T1 = 0xa May 4 11:48:05 kamidake /kernel: cd3(ahc0:2:3): Queueing an Abort SCB May 4 11:48:05 kamidake /kernel: cd3(ahc0:2:3): Abort Message Sent May 4 11:48:05 kamidake /kernel: cd3(ahc0:2:3): SCB 3 - Abort Completed. May 4 11:48:05 kamidake /kernel: cd3(ahc0:2:3): no longer in timeout May 4 11:48:29 kamidake /kernel: cd3(ahc0:2:3): MEDIUM ERROR info?:0x262ae asc: 11,5 L-EC uncorrectable error If I just use the cdrom locally and not through NFS these errors do not show up. I did things like a "find . -exec md5 {} \;" to stress the cd. The scsi controller is an Adaptec 2940UW. --Scanner (scanner@apricot.com) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message