Re: [2.4] Is a negative rsect in /proc/partitions normal?

From: Mike Fedyk
Date: Mon Dec 29 2003 - 21:44:32 EST


On Mon, Dec 29, 2003 at 07:11:06PM -0700, Andreas Dilger wrote:
> On Dec 29, 2003 17:44 -0800, Mike Fedyk wrote:
> > I'm running 2.4.23-rc5, and I've been running bonnie, burnMMX and burnK7 for
> > the last few days on my 3 drive md raid5 array, and I noticed that my
> > rsects[1] have gone negative. I might consider this normal but /proc/stat
> > (which only shows hda) doesn't show any negative numbers for the same
> > stats[2]
> >
> > Is this a bug?
> >
> > [1]
> > major minor #blocks name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq
> >
> > 56 0 160086528 hdi 240438349 1318355451 -414508366 16504630 101146331 1132637971 1281537580 24939164 -3 18108868 28693926
> > 56 3 159694132 hdi3 240438290 1318355420 -414508552 16503120 101146229 1132637930 1281537288 24937454 0 19884967 309062
> > 33 0 160086528 hde 240516418 1321486397 -388859454 40325686 90645794 1146603482 1312002136 18444936 -3 14785505 12315041
> > 33 2 159790522 hde2 240516417 1321486394 -388859462 40325686 90645794 1146603482 1312002136 18444936 0 24147141 26883069
> > 3 0 160086528 hda 240675036 1318323453 -412885008 27008859 110939441 1126008079 1306648420 28401642 -3 24294848 41908774
> > 3 3 159694132 hda3 240467546 1317699583 -419535288 24234589 110932078 1125988609 1306423136 28337002 0 4327510 10687939
>
> Probably just somewhere printing out %ld instead of %lu or similar. I'm
> sure a trivial patch to fix it would be accepted.

struct hd_struct in include/linux/genhd.h:61 has them all unsigned int.

How's this patch look against 2.4.23?

--- drivers/block/genhd.c.orig 2003-12-29 18:35:35.000000000 -0800
+++ drivers/block/genhd.c 2003-12-29 18:40:11.000000000 -0800
@@ -201,7 +201,7 @@

disk_round_stats(hd);
seq_printf(s, "%4d %4d %10d %s "
- "%d %d %d %d %d %d %d %d %d %d %d\n",
+ "%u %u %u %u %u %u %u %u %u %u %u\n",
gp->major, n, gp->sizes[n],
disk_name(gp, n, buf),
hd->rd_ios, hd->rd_merges,
-
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