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* 2.4.10 kernel Oops with compressed ramdisk
@ 2001-10-04  7:05 Josh Samuelson
  2001-10-08 13:50 ` EMC SYMMETRIX multiple LUN's Andre Margis
  0 siblings, 1 reply; 4+ messages in thread
From: Josh Samuelson @ 2001-10-04  7:05 UTC (permalink / raw)
  To: linux-kernel

Greetings,

When attempting to load a compressed ramdisk from a floppy, the kernel
has a NULL pointer dereference.  The problem occurs inside of
rd_load_image().  rd_load_image() -> identify_ramdisk_image() ->
do_generic_file_read() -> update_atime() is the call trace.
inode->i_sb is not being set somewhere and the macro IS_NOATIME attempts
to dereference it.

#define IS_NOATIME(inode)   (__IS_FLG(inode, MS_NOATIME) || ((inode)->i_flags & S_NOATIME))

#define __IS_FLG(inode,flg) ((inode)->i_sb->s_flags & (flg))

Any ideas where inode->i_sb should be set?

^ permalink raw reply	[flat|nested] 4+ messages in thread

* EMC SYMMETRIX multiple LUN's
  2001-10-04  7:05 2.4.10 kernel Oops with compressed ramdisk Josh Samuelson
@ 2001-10-08 13:50 ` Andre Margis
  0 siblings, 0 replies; 4+ messages in thread
From: Andre Margis @ 2001-10-08 13:50 UTC (permalink / raw)
  To: linux-kernel

I testing DELL 8450 under Linux, and kernel probe only two LUN's from EMC, 0 
and 1, but I have 2 and 254, if  I use scsi add-single-device to this other 
LUN's, works perfect. I try to set max_scsi_luns, has the same results.

I test with kernel 2.4.9, 2.4.10-ac7, both have the same problem.

With Conectiva Linux Kernel 2.4.5-9cl, he show all LUNS, work fine!

Any Help?


Thank's




Andre

^ permalink raw reply	[flat|nested] 4+ messages in thread

* RE: EMC SYMMETRIX multiple LUN's
@ 2001-10-10 15:20 conway, heather
  0 siblings, 0 replies; 4+ messages in thread
From: conway, heather @ 2001-10-10 15:20 UTC (permalink / raw)
  To: 'Andre Margis ', 'linux-kernel@vger.kernel.org '

Andre,
I would recommend that you check out the patch posted by Mike Brown.  The
name of the thread is [PATCH] Fix: bug in scan_scsis_single()? for 2.4.10
(PASS 2) and it applies to v2.4.10.  I would recommend that you apply the
patch and reload your driver.  That should work.
Thanks.
Heather

-----Original Message-----
From: conway, heather 
Sent: Tuesday, October 09, 2001 3:16 PM
To: 'Andre Margis '; 'linux-kernel@vger.kernel.org '
Subject: RE: EMC SYMMETRIX multiple LUN's


Andre,
There is a problem in the SCSI scanning code in v2.4.7 and up.  As of right
now, I have not found a patch or fix that will work to correct the problem
of scanning properly with or without the Symmetrix.  In v2.4.7, the SCSI
scanning code was changed.  That coupled with the fact that sequentail
scanning is used instead of a REPORT_LUNs and the fact that the SCSI
midlayer will scan indefinitely for LUNs can cause a panic or can cause the
host to scan indefinitely.
There have been a couple of patches posted, but none have fixed the problem
yet.  
Heather 

-----Original Message-----
From: Andre Margis
To: linux-kernel@vger.kernel.org
Sent: 10/8/01 9:50 AM
Subject: EMC SYMMETRIX multiple LUN's

I testing DELL 8450 under Linux, and kernel probe only two LUN's from
EMC, 0 
and 1, but I have 2 and 254, if  I use scsi add-single-device to this
other 
LUN's, works perfect. I try to set max_scsi_luns, has the same results.

I test with kernel 2.4.9, 2.4.10-ac7, both have the same problem.

With Conectiva Linux Kernel 2.4.5-9cl, he show all LUNS, work fine!

Any Help?


Thank's




Andre
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To unsubscribe from this list: send the line "unsubscribe linux-kernel"
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^ permalink raw reply	[flat|nested] 4+ messages in thread

* RE: EMC SYMMETRIX multiple LUN's
@ 2001-10-09 19:16 conway, heather
  0 siblings, 0 replies; 4+ messages in thread
From: conway, heather @ 2001-10-09 19:16 UTC (permalink / raw)
  To: 'Andre Margis ', 'linux-kernel@vger.kernel.org '

Andre,
There is a problem in the SCSI scanning code in v2.4.7 and up.  As of right
now, I have not found a patch or fix that will work to correct the problem
of scanning properly with or without the Symmetrix.  In v2.4.7, the SCSI
scanning code was changed.  That coupled with the fact that sequentail
scanning is used instead of a REPORT_LUNs and the fact that the SCSI
midlayer will scan indefinitely for LUNs can cause a panic or can cause the
host to scan indefinitely.
There have been a couple of patches posted, but none have fixed the problem
yet.  
Heather 

-----Original Message-----
From: Andre Margis
To: linux-kernel@vger.kernel.org
Sent: 10/8/01 9:50 AM
Subject: EMC SYMMETRIX multiple LUN's

I testing DELL 8450 under Linux, and kernel probe only two LUN's from
EMC, 0 
and 1, but I have 2 and 254, if  I use scsi add-single-device to this
other 
LUN's, works perfect. I try to set max_scsi_luns, has the same results.

I test with kernel 2.4.9, 2.4.10-ac7, both have the same problem.

With Conectiva Linux Kernel 2.4.5-9cl, he show all LUNS, work fine!

Any Help?


Thank's




Andre
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel"
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2001-10-10 15:20 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2001-10-04  7:05 2.4.10 kernel Oops with compressed ramdisk Josh Samuelson
2001-10-08 13:50 ` EMC SYMMETRIX multiple LUN's Andre Margis
2001-10-09 19:16 conway, heather
2001-10-10 15:20 conway, heather

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