[4727] in linux-scsi channel archive
SCSI hangs?
daemon@ATHENA.MIT.EDU (David Whysong)
Fri Sep 25 06:57:09 1998
Date: Fri, 25 Sep 1998 00:43:02 -0700 (PDT)
From: David Whysong <dwhysong@physics.ucsb.edu>
To: linux-scsi@vger.rutgers.edu
Hi,
I'm having a problem with my NCR810A SCSI system, with an internal Toshiba
32x CDROM and an external Zip plus drive. I left the system idle for a
while with a mounted CD and zip disk. When I came back and tried to do an
"ls" the process hung. The drives did not spin up when I tried to access
them.
Details follow my sig. Any suggestions? Please cc me, I'm not on the
mailing list.
Dave
David Whysong dwhysong@physics.ucsb.edu
Astrophysics graduate student University of California, Santa Barbara
PGP public keys available at http://www.physics.ucsb.edu/~dwhysong/pgpkey.asc
DSS PGP Key 0x903F5BD6 : FE78 91FE 4508 106F 7C88 1706 B792 6995 903F 5BD6
D-H PGP key 0x5DAB0F91 : BC33 0F36 FCCD E72C 441F 663A 72ED 7FB7 5DAB 0F91
Linux version 2.1.122 (root@Sleepy) (gcc version 2.7.2.3) #4 Sat Sep 19
09:42:55 PDT 1998
[root@Sleepy /proc]# cat scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: TOSHIBA Model: CD-ROM XM-6201TA Rev: 1037
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: IOMEGA Model: ZIP 100 PLUS Rev: J.66
Type: Direct-Access ANSI SCSI revision: 02
[root@Sleepy /proc]# cat scsi/ncr53c8xx/0
General information:
Chip NCR53C810a, device id 0x1, revision id 0x12
IO port address 0xe800, IRQ number 11
Using memory mapped IO at virtual address 0xc889af00
Synchronous period factor 25, max commands per lun 32
dmesg shows:
scsi : aborting command due to timeout : pid 393, scsi0, channel 0, id 4,
lun 0 0x28 00 00 00 00 17 00 00 01 00
ncr53c8xx_abort: pid=393 serial_number=452 serial_number_at_timeout=452
scsi : aborting command due to timeout : pid 394, scsi0, channel 0, id 5,
lun 0 0x08 00 0c 40 08 00
ncr53c8xx_abort: pid=394 serial_number=453 serial_number_at_timeout=453
But given the low pid's I doubt these are important messages.
[root@Sleepy cdrom]# strace ls
execve("/bin/ls", ["ls"], [/* 225 vars */]) = 0
brk(0) = 0x805016c
open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat(3, {st_mode=0, st_size=0, ...}) = 0
mmap(0, 17755, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4000b000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3
mmap(0, 4096, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40010000
munmap(0x40010000, 4096) = 0
mmap(0, 670580, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40010000
mprotect(0x400a1000, 76660, PROT_NONE) = 0
mmap(0x400a1000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x90000) = 0x400a1000
mmap(0x400a8000, 47988, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400a8000
close(3) = 0
personality(0 /* PER_??? */) = 0
getpid() = 7593
brk(0) = 0x805016c
brk(0x80501a4) = 0x80501a4
brk(0x8051000) = 0x8051000
time(NULL) = 906707480
ioctl(1, TCGETS, {B9600 opost isig icanon echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=24, ws_col=80, ws_xpixel=499, ws_ypixel=316}) = 0
brk(0x8054000) = 0x8054000
open(".", O_RDONLY|O_NONBLOCK) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
fstat(3, {st_mode=0, st_size=0, ...}) = 0
lseek(3, 0, SEEK_CUR) = 0
getdents(3,
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