On Friday 29 December 2006 00:36, Mike wrote:
> I'm not pointing fingers, I'm trying to figure out why one of my
> machines will just freeze. The box is a FC5 that is up to date with
> all patches. Currently it is running bacula 1.38.11 and other stuff.
> Since Saturday evening the box has frozen maybe eight times so
> hard that I cannot login. The only way to get into the box is to
> power the box off and hope everything comes back.
>
> Today I turned off bacula (service bacula stop) and the box has
> not frozen. Is there possibly a situation where something in
> bacula is getting such a huge list of files that it starts swapping
> or something similiar? When the box freezes there are no full filesystems
> and the brief glimpse of 'top' didn't show any processes that I
> found interesting.
>
Here is the patch that I mentioned:
tree b9b06d8b289d6c9bdb401282497079c4a5b2792c
parent 9f434d4f84a235f6b61aec6e691d6b07bc46fc24
author Bryan Holty <[EMAIL PROTECTED]> 1143030939 -0600
committer James Bottomley <[EMAIL PROTECTED]> 1149171415 -0500
[SCSI] scsi_lib.c: properly count the number of pages in scsi_req_map_sg()
The calculation of nr_pages in scsi_req_map_sg() doesn't account for
the fact that the first page could have an offset that pushes the end
of the buffer onto a new page.
Signed-off-by: Bryan Holty <[EMAIL PROTECTED]>
Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
f52359622fa25783cf1a08c0772048d2ed1a7434
drivers/scsi/scsi_lib.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 764a8b3..faee475 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -367,7 +367,7 @@ static int scsi_req_map_sg(struct reques
int nsegs, unsigned bufflen, gfp_t gfp)
{
struct request_queue *q = rq->q;
- int nr_pages = (bufflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ int nr_pages = (bufflen + sgl[0].offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
unsigned int data_len = 0, len, bytes, off;
struct page *page;
struct bio *bio = NULL;
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