Date: Fri, 10 Nov 1995 21:17:38 +0900 From: yuhara@flab.fujitsu.co.jp To: bugs@freebsd.org Subject: scsi_ioctl.c causes PANIC Message-ID: <199511101217.VAA11819@cindy.avalon.flab.fujitsu.co.jp>
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Bug Report: scsi_ioctl.c causes panic.
FreeBSD version: 2.1.0-SNAP-951005
File: /usr/src/sys/scsi_ioctl.c
Function: scsi_do_ioctl()
Problem:
If screq->datalen (== len) is zero, B_BUSY flag is not set
for bp->b_flags, which results in a panic in biodone():
if (!(bp->b_flags & B_BUSY))
panic("biodone: buffer not busy");
Fix: set bp->bflags to B_BUSY in scsi_ioctl.c
} else {
/* if no data, no need to translate it.. */
bp->b_un.b_addr = 0;
bp->b_dev = dev;
bp->b_flags = 0; /* !!!!!! HERE !!!!!*/
scsistrategy(bp);
ret = bp->b_error;
(I'm not on the mailing list. Please include my address in your reply.)
------
Masanobu Yuhara yuhara@flab.fujitsu.co.jp
Fujitsu Laboratories Ltd.
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