vinum panic on -devel

[Simon 'corecode' Schubert]

joerg at xxxxxxxxxxxxxxxxx wrote:
On Wed, Jul 05, 2006 at 03:48:55PM -0700, Matthew Dillon wrote:
    It would be great if some vinum testing could be done.
If you have some spare drives, try the following setup:
[snip]

using this config, the next one:
Unread portion of the kernel message buffer:
<6>vinum: test3.p0.s1 is initializing by force
<6>vinum: test3.p0 is initializing
<6>vinum: test3.p0.s0 is initializing by force
panic: assertion: bio->bio_buf->b_cmd != BUF_CMD_DONE in dev_dstrategy
#3  0xc0164993 in dev_dstrategy (dev=0xcbecdec0, bio=0xd229ac88)
   at /usr/build/src/sys/kern/kern_device.c:214
#4  0xd5bffd4f in sdio (bio=0xc24f9430) at 
/usr/build/src/sys/dev/raid/vinum/vinumrequest.c:991
#5  0xd5c00e99 in initsd (sdno=6, verify=0) at 
/usr/build/src/sys/dev/raid/vinum/vinumrevive.c:560
#6  0xd5c01fa3 in start_object (data=0xd5bc4400)
   at /usr/build/src/sys/dev/raid/vinum/vinumstate.c:885
#7  0xd5c02410 in setstate (msg=0xd5bc4400) at 
/usr/build/src/sys/dev/raid/vinum/vinumstate.c:1057
#8  0xd5bfcbb8 in vinumioctl (dev=0xcbed03b8, cmd=3238020684, 
data=0xd5bc4400 "\006", flag=3,
   td=0xd5627900) at /usr/build/src/sys/dev/raid/vinum/vinumioctl.c:215

i think the fix is

diff -r 8d0206a990f4 sys/dev/raid/vinum/vinumrequest.c
--- a/sys/dev/raid/vinum/vinumrequest.c Thu Jul 06 13:16:25 2006 +0200
+++ b/sys/dev/raid/vinum/vinumrequest.c Thu Jul 06 15:22:58 2006 +0200
@@ -947,6 +947,7 @@ sdio(struct bio *bio)
    sddev = DRIVE[sd->driveno].dev;                /* device */
    bzero(sbp, sizeof(struct sdbuf));                      /* start with nothing */
    sbp->b.b_flags = bp->b_flags | B_PAGING;
+    sbp->b.b_cmd = bp->b_cmd;
    sbp->b.b_bcount = bp->b_bcount;                        /* number of bytes to transfer */
    sbp->b.b_resid = bp->b_resid;                          /* and amount waiting */
    sbp->b.b_data = bp->b_data;                                    /* data buffer */
will test this in a few minutes.

cheers
 simon
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