Date: Mon, 30 Aug 1999 16:30:39 +0930 From: Greg Lehey <grog@lemis.com> To: Bernd Walter <ticso@cicely.de> Cc: Matthew Dillon <dillon@apollo.backplane.com>, Mike Smith <mike@smith.net.au>, Parag Patel <parag@cgt.com>, freebsd-current@FreeBSD.ORG Subject: Re: 4.0-CURRENT SMP crash with vinum raid-5 and softupdates Message-ID: <19990830163039.L13904@freebie.lemis.com> In-Reply-To: <19990830161715.K13904@freebie.lemis.com>; from Greg Lehey on Mon, Aug 30, 1999 at 04:17:15PM %2B0930 References: <199908292224.PAA15435@dingo.cdrom.com> <199908292348.QAA07774@apollo.backplane.com> <19990830075311.A30271@cicely8.cicely.de> <199908300559.WAA09987@apollo.backplane.com> <19990830080603.B30271@cicely8.cicely.de> <19990830161715.K13904@freebie.lemis.com>
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On Monday, 30 August 1999 at 16:17:15 +0930, Greg Lehey wrote:
> On Monday, 30 August 1999 at 8:06:03 +0200, Bernd Walter wrote:
>> On Sun, Aug 29, 1999 at 10:59:22PM -0700, Matthew Dillon wrote:
>>>
>>> This is definitely a pbuf. Did you apply the patches Greg emailed?
>>
>> Not yet.
>> I will do it today.
>
> Wait a while. I'll send you another couple as well.
OK, I'm attaching the patches. You'll need to build a new kernel, a
new Vinum kld and a new vinum(8). Let me know if you have any
problems.
Greg
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Index: dev/vinum/request.h
===================================================================
RCS file: /home/ncvs/src/sys/dev/vinum/request.h,v
retrieving revision 1.13
diff -w -u -r1.13 request.h
--- request.h 1999/08/28 00:42:37 1.13
+++ request.h 1999/08/30 05:33:13
@@ -202,7 +202,7 @@
} info;
};
-#define RQINFO_SIZE 128 /* number of info slots in buffer */
+#define RQINFO_SIZE 512 /* number of info slots in buffer */
void logrq(enum rqinfo_type type, union rqinfou info, struct buf *ubp);
#endif
Index: dev/vinum/vinuminterrupt.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/vinum/vinuminterrupt.c,v
retrieving revision 1.19
diff -w -u -r1.19 vinuminterrupt.c
--- vinuminterrupt.c 1999/08/28 00:42:39 1.19
+++ vinuminterrupt.c 1999/08/30 06:58:06
@@ -352,6 +352,10 @@
if (debug & DEBUG_LASTREQS)
logrq(loginfo_raid5_data, (union rqinfou) rqe, bp);
#endif
+ if ((bp->b_flags & B_CALL)
+ && (bp->b_iodone == NULL) )
+ Debugger("complete_raid5_write");
+ bp->b_flags |= B_XXX; /* mark our own */
BUF_STRATEGY(&rqe->b, 0);
}
}
@@ -388,5 +392,9 @@
if (debug & DEBUG_LASTREQS)
logrq(loginfo_raid5_parity, (union rqinfou) rqe, bp);
#endif
+ if ((bp->b_flags & B_CALL)
+ && (bp->b_iodone == NULL) )
+ Debugger("complete_raid5_write");
+ bp->b_flags |= B_XXX; /* mark our own */
BUF_STRATEGY(&rqe->b, 0);
}
Index: dev/vinum/vinumrequest.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/vinum/vinumrequest.c,v
retrieving revision 1.35
diff -w -u -r1.35 vinumrequest.c
--- vinumrequest.c 1999/08/28 00:42:42 1.35
+++ vinumrequest.c 1999/08/30 06:57:00
@@ -396,6 +396,11 @@
if (debug & DEBUG_LASTREQS)
logrq(loginfo_rqe, (union rqinfou) rqe, rq->bp);
#endif
+ if ((bp->b_flags & B_CALL)
+ && (bp->b_iodone == NULL) )
+ Debugger("launch_requests");
+ bp->b_flags |= B_XXX; /* mark our own */
+
/* fire off the request */
BUF_STRATEGY(&rqe->b, 0);
}
Index: kern/subr_diskslice.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/subr_diskslice.c,v
retrieving revision 1.68
diff -w -u -r1.68 subr_diskslice.c
--- subr_diskslice.c 1999/08/28 00:46:17 1.68
+++ subr_diskslice.c 1999/08/30 06:52:03
@@ -265,6 +265,9 @@
&& sp->ds_offset != 0) {
struct iodone_chain *ic;
+ if ((bp->b_flags & B_CALL)
+ && (bp->b_iodone == NULL) )
+ Debugger("dscheck");
ic = malloc(sizeof *ic , M_DEVBUF, M_WAITOK);
ic->ic_prev_flags = bp->b_flags;
ic->ic_prev_iodone = bp->b_iodone;
@@ -601,6 +604,9 @@
| (bp->b_flags & ~(B_CALL | B_DONE));
bp->b_iodone = ic->ic_prev_iodone;
bp->b_iodone_chain = ic->ic_prev_iodone_chain;
+ if ((bp->b_flags & B_CALL)
+ && (bp->b_iodone == NULL) )
+ Debugger("dsiodone");
if (!(bp->b_flags & B_READ)
|| (!(bp->b_flags & B_ERROR) && bp->b_error == 0)) {
msg = fixlabel((char *)NULL, ic->ic_args[1].ia_ptr,
Index: kern/vfs_bio.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/vfs_bio.c,v
retrieving revision 1.227
diff -w -u -r1.227 vfs_bio.c
--- vfs_bio.c 1999/08/28 00:46:23 1.227
+++ vfs_bio.c 1999/08/30 01:31:00
@@ -2576,6 +2576,8 @@
/* call optional completion function if requested */
if (bp->b_flags & B_CALL) {
+ if (bp->b_iodone == NULL)
+ Debugger ("biodone");
bp->b_flags &= ~B_CALL;
(*bp->b_iodone) (bp);
splx(s);
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