From: arisawa@ar.aichi-u.ac.jp arisawa@ar.aichi-u.ac.jp
Subject: [9fans] 9fs and 1542
Date: Mon, 5 Oct 1998 04:17:26 -0400 [thread overview]
Message-ID: <19981005081726.hwXLxZ-UJlZUZrVbHQaoO5Lq0AmQfhvwZ0I8p3mgAXA@z> (raw)
Hello 9fans!
I wrote on the 1542 problem on file server :
># This time I attached only one scsi disk ( scsiid=0 ). #
>I found that the problem comes from scsiprobe() in `fs/pc/scsi.c'.
>I inserted print statements in scsiprobe():
I did some experiments:
case 1
One HD on id=0
result:
scsiprobe can recognize:
the presence of id=0
the absence of id=1
and freezes at id=2
case 2
Two HDs on id=0 and 1
result:
scsiprobe can recognize:
the presence of id=0
the presence of id=1
the absence of id=2
and freezes at id=3
case 3
Two HDs on id=0 and 2
result:
scsiprobe can recognize:
the presence of id=0
the absence of id=1
the presence of id=2
and freezes at id=3
case 4
Three HDs on id=0, 2 and 3
result:
scsiprobe can recognize:
the presence of id=0
the absence of id=1
the presence of id=2
the presence of id=3
and freezes at id=4
I investigated freezing point. The result is shown bellow:
scsiprobe in fs/pc/scsi.c
aha1542io in fs/pc/scsi1542.c
sleep in fs/port/proc.c
sched in fs/port/proc.c
Any advice is welcome.
Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp
next reply other threads:[~1998-10-05 8:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-10-05 8:17 arisawa [this message]
-- strict thread matches above, loose matches on Subject: below --
1998-10-06 9:29 forsyth
1998-10-06 4:27 Kenji
1998-10-05 13:55 G.David
1998-10-05 13:38 jmk
1998-10-05 9:01 forsyth
1998-10-03 8:34 Kenji
1998-09-30 11:48 jmk
1998-09-30 11:36 G.David
1998-09-30 7:05 arisawa
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