Eric Windisch wrote:
Can you post the result of 'dmesg'
Attached as dmesg.log
'cat /proc/mounts' and
Attached as proc.mounts.txt
'fuser -v /dev/sdX#'?
root@san001:~# fuser -v /dev/sda1
root@san001:~# fuser -v /dev/sdb1
root@san001:~# fuser -v /dev/sdc1
root@san001:~# fuser -v /dev/sdd1
root@san001:~# fuser -v /dev/sde1
root@san001:~# fuser -v /dev/sde
root@san001:~# fuser -v /dev/sdd
root@san001:~# fuser -v /dev/sdc
root@san001:~# fuser -v /dev/sdb
root@san001:~# fuser -v /dev/sda
root@san001:~# fuser -v /dev/sd*
root@san001:~#
And for good measure...
root@san001:~# lsof /dev/sd*
root@san001:~#
Can you apply the attached patch and report what the kernel says?
Thanks.
--
tejun
diff --git a/fs/block_dev.c b/fs/block_dev.c
index f5958f4..c4fae17 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -452,16 +452,23 @@ int bd_claim(struct block_device *bdev,
/* first decide result */
if (bdev->bd_holder == holder)
res = 0; /* already a holder */
- else if (bdev->bd_holder != NULL)
+ else if (bdev->bd_holder != NULL) {
+ printk("XXX bd_claim %d:%d failed %d@%p\n",
+ MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev),
+ bdev->bd_holders, bdev->bd_holder);
res = -EBUSY; /* held by someone else */
+ }
else if (bdev->bd_contains == bdev)
res = 0; /* is a whole device which isn't held */
else if (bdev->bd_contains->bd_holder == bd_claim)
res = 0; /* is a partition of a device that is being partitioned */
- else if (bdev->bd_contains->bd_holder != NULL)
+ else if (bdev->bd_contains->bd_holder != NULL) {
+ printk("XXX bd_claim %d:%d failed %d@%p (part of a held dev)\n",
+ MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev),
+ bdev->bd_holders, bdev->bd_holder);
res = -EBUSY; /* is a partition of a held device */
- else
+ } else
res = 0; /* is a partition of an un-held device */
/* now impose change */
@@ -474,6 +481,14 @@ int bd_claim(struct block_device *bdev,
bdev->bd_contains->bd_holder = bd_claim;
bdev->bd_holders++;
bdev->bd_holder = holder;
+ printk("XXX bd_claim %d:%d/%d:%d %d@%p %d@%p\n",
+ MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev),
+ MAJOR(bdev->bd_contains->bd_dev),
+ MINOR(bdev->bd_contains->bd_dev),
+ bdev->bd_holders, bdev->bd_holder,
+ bdev->bd_contains->bd_holders,
+ bdev->bd_contains->bd_holder);
+ dump_stack();
}
spin_unlock(&bdev_lock);
return res;
@@ -484,6 +499,12 @@ EXPORT_SYMBOL(bd_claim);
void bd_release(struct block_device *bdev)
{
spin_lock(&bdev_lock);
+ printk("XXX bd_release %d:%d/%d:%d %d@%p %d@%p\n",
+ MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev),
+ MAJOR(bdev->bd_contains->bd_dev),
+ MINOR(bdev->bd_contains->bd_dev),
+ bdev->bd_holders, bdev->bd_holder,
+ bdev->bd_contains->bd_holders, bdev->bd_contains->bd_holder);
if (!--bdev->bd_contains->bd_holders)
bdev->bd_contains->bd_holder = NULL;
if (!--bdev->bd_holders)
