FUJITA Tomonori wrote:
On Tue, 21 Apr 2009 16:07:08 GMT
bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
http://bugzilla.kernel.org/show_bug.cgi?id=13143
Summary: scsi_debug doesn't manage more than 1Tb
Product: SCSI Drivers
Version: 2.5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx
ReportedBy: tvignaud@xxxxxxxxxxxx
Regression: No
While debugging a partitionner software that has issues with disks bigger than
1Tb, I found out that scsi_debug doesn't manage more than 1Tb:
# modprobe scsi_debug virtual_gb=1000
# cat /proc/partitions |fgrep sdc
8 32 1048576000 sdc
# rmmod scsi_debug
# modprobe scsi_debug virtual_gb=1100
# cat /proc/partitions |fgrep sdc
8 32 9223372035860725760 sdc
dmesg shows that the additionnal 100Gb makes it loose sight:
sd 16:0:0:0: [sdc] 2097152000 512-byte hardware sectors: (1.07 TB/1000 GiB)
versus:
sd 15:0:0:0: [sdc] 18446744071721451520 512-byte hardware sectors: (18.4
EB/15.9 EiB)
=
From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Subject: [PATCH] scsi_debug: fix virtual disk larger than 1TB
Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Signed-off-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Wow, a 1 TB ram disk!
---
drivers/scsi/scsi_debug.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 213123b..41a2177 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -887,7 +887,7 @@ static int resp_start_stop(struct scsi_cmnd * scp,
static sector_t get_sdebug_capacity(void)
{
if (scsi_debug_virtual_gb > 0)
- return 2048 * 1024 * scsi_debug_virtual_gb;
+ return 2048 * 1024 * (sector_t)scsi_debug_virtual_gb;
else
return sdebug_store_sectors;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
