Date: Mon, 25 Aug 2003 06:17:01 -0500 (EST) From: "Michael L. Squires" <mikes@siralan.org> To: Dan Langille <dan@langille.org> Cc: freebsd-scsi@freebsd.org Subject: Re: SCSI tape data loss Message-ID: <200308251117.h7PBH1SA018124@siralan.org> In-Reply-To: <3EF37A16.15316.2772DF95@localhost> "from Dan Langille at Jun 20, 2003 09:18:14 pm"
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I ran "tapetest.c" under 5.1-RELEASE (without pthread under 5.1-RELEASE,
first part with pthread under 5.1-RELEASE, second part (scan) under
5.1-RELEASE-p2).
216012 blocks written/read without pthreads
217073 blocks written/read with pthreads (same!)
Hardware is SuperMicro P6DGH, dual PIII/850, onboard AIC7896, DLT4000 tape
drive, Seagate ST423451W 23GB HD.
--------------------------results----------------------------------------------
dmesg:
FreeBSD 5.1-RELEASE #1: Sat Aug 23 14:56:45 EST 2003
root@mikes.siralan.org:/usr/obj/usr/src/sys/MIKES
CPU: Intel Pentium III (851.93-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x686 Stepping = 6
ahc0: <Adaptec aic7896/97 Ultra2 SCSI adapter> port 0xe400-0xe4ff mem 0xffafe000-0xffafefff irq 10 at device 14.0 on pci0
aic7896/97: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
ahc1: <Adaptec aic7896/97 Ultra2 SCSI adapter> port 0xe800-0xe8ff mem 0xffaff000-0xffafffff irq 10 at device 14.1 on pci0
aic7896/97: Ultra2 Wide Channel B, SCSI Id=7, 32/253 SCBs
sa0 at ahc1 bus 0 target 4 lun 0
sa0: <Quantum DLT4000 CD43> Removable Sequential Access SCSI-2 device
sa0: 10.000MB/s transfers (10.000MHz, offset 15)
output from tapetest.c (edited)
weof_dev
Wrote EOF to /dev/sa0
Write failed. Last block written=216012. stat=0 ERR=Unknown error: 0
*rewind
Rewound /dev/sa0
*scan
Starting scan at file 0
216012 blocks of 64512 bytes in file 0
End of File mark.
End of File mark.
End of tape
Total files=1, blocks=216012, bytes = 1050464256
ioctl MTWEOF error on /dev/sa0. ERR=Input/output error.
Bad status from weof -1. ERR=Input/output error
Write failed. Last block written=217073. stat=-1 ERR=No space left on device
*rewind
Rewound /dev/sa0
*scan
Starting scan at file 0
Bad status from read -1. ERR=Input/output error
217073 blocks of 64512 bytes in file 0
*
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