SCSI/ext2 Problem 2.1.129/130

Hans-Frieder Vogt (
Tue, 1 Dec 1998 10:39:31 +0100


On a new PII-SMP machine (2xPII 400, ASUS P2B-DS with AIC 7890 onboard, SCSI
U2W IBM, Riva TNT, Debian 2.0, linux 2.1.129 and 2.1.130) I get a reproducable

message varies, is either

Unable to handle kernel paging request at virtual address xxxxxxxx or
Unable to handle kernel NULL pointer dereference at virtual address xxxxxxxx

happens in call of find, call trace is

system_call -> sys_newlstat -> __namei -> lookup_dentry -> real_lookup ->
ext2_lookup -> iget

it fails in iget +48/9c, so I suspect that it could be a problem of not
properly locking/unlocking (there is no spin_unlock(&inode_lock); before return
get_new_inode(sb, ino, head);), but I have really no idea what the problem
could be.

Can anybody give me a hint?



p.s.: I didn't include the complete screen dump of the error message here, but
can send it to anyone who is interested in it.

Hans-Frieder Vogt                 e-mail:
Institut f"ur Luftfahrtantriebe   tel   : +49 (711) 685-3522
Universit"at Stuttgart
Pfaffenwaldring 6
D-70569 Stuttgart, Germany

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