Date: Sun, 26 Sep 1999 23:53:56 -0700 (PDT) From: "Sameer R. Manek" <manek@quadrunner.com> To: freebsd-stable@freebsd.org Subject: AHA2940UW causing system to be blocked? Message-ID: <Pine.LNX.4.10.9909262324270.11868-100000@puffer.quadrunner.com>
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I've noticed something odd occuring here, i'm coping data from an ultra-wide disk (da0) to scsi2 disk (da2). tar appears to be entering a blocked state, a long with any other disk io, such as a ls, or df. I'm not sure if it's hardware or it's a recreatable problem for others. Top reports this for tar: 21882 root -2 0 540K 284K getblk 1:29 0.83% 0.83% tar dmesg: ahc0: <Adaptec 2940 Ultra SCSI adapter> rev 0x00 int a irq 11 on pci0.15.0 ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs da0 at ahc0 bus 0 target 0 lun 0 da0: <QUANTUM XP39100J LYK8> Fixed Direct Access SCSI-2 device da0: 20.000MB/s transfers (10.000MHz, offset 8, 16bit), Tagged Queueing Enabled da0: 8682MB (17781520 512 byte sectors: 255H 63S/T 1106C) da1 at ahc0 bus 0 target 1 lun 0 da1: <QUANTUM XP34301 101U> Fixed Direct Access SCSI-2 device da1: 20.000MB/s transfers (10.000MHz, offset 8, 16bit), Tagged Queueing Enabled da1: 4106MB (8410200 512 byte sectors: 255H 63S/T 523C) changing root device to da0s1a cd1 at ahc0 bus 0 target 5 lun 0 cd1: <TOSHIBA CD-ROM XM-3801TA 0207> Removable CD-ROM SCSI-2 device cd1: 10.000MB/s transfers (10.000MHz, offset 8) cd1: Attempt to query device size failed: NOT READY, Medium not present da2 at ahc0 bus 0 target 3 lun 0 da2: <COMPAQPC WDE4360 1.52> Fixed Direct Access SCSI-2 device da2: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled da2: 4094MB (8386000 512 byte sectors: 255H 63S/T 522C) cd0 at ahc0 bus 0 target 4 lun 0 cd0: <HP CD-Writer 6020 1.07> Removable CD-ROM SCSI-2 device cd0: 3.300MB/s transfers cd0: cd present [336075 x 2048 byte records] Sameer To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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