2.6.22-rc6: known regressions

Hi all,

Here is a list of some known regressions in 2.6.22-rc6.

Feel free to add new regressions/remove fixed etc.
http://kernelnewbies.org/known_regressions

*STATISTICS* (a.k.a. list of aces)

Name Regressions fixed since 21-Jun-2007

Andi Kleen                             1
Hugh Dickins                           1
Jean Delvare                           1

Sparc64

Subject : random invalid instruction occourances on sparc32 (sun4c)
References : http://lkml.org/lkml/2007/6/17/111
Submitter : Mark Fortescue <[email protected]>
Status : problem is being debugged

Subject : 2.6.22-rc broke X on Ultra5
References : http://lkml.org/lkml/2007/5/22/78
Submitter : Mikael Pettersson <[email protected]>

Status : problem is being debugged

x86-64

Subject : x86-64 2.6.22-rc2 random segfaults
References : http://lkml.org/lkml/2007/5/24/275
Submitter : Ioan Ionita <[email protected]>
Status : Unknown

Regards,
Michal

--
LOG
http://www.stardust.webpages.pl/log/

Ioan,

do you have any news regarding this regression? Does it still happen with the latest 2.6.22-rc5/6 or have you found a way to reproduce this?

Thanks,

Joerg

           |           AMD Saxony Limited Liability Company & Co. KG
 Operating |         Wilschdorfer Landstr. 101, 01109 Dresden, Germany
 System    |                  Register Court Dresden: HRA 4896
 Research  |              General Partner authorized to represent:
 Center    |             AMD Saxony LLC (Wilmington, Delaware, US)
           | General Manager of AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy

Hi All,

I have done some more work on the sun4c Sparc32 random invalid instruction occourances. The issue only affects the SLAB allocator. The SLUB and SLOB allocators both work OK but SLOB is dreadfully slow making it totally impractical for use on my sun4c. Isolating the problem to the SLAB allocator should make it a bit easier to track down the problem.

It may be desirable to put a comment into Kconfig to indicate that the SLAB allocator is currently broaken for sun4c but that SLUB works well as I dought that I will have found/fixed the problem before 2.6.22.

Regards
Mark Fortescue.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to [email protected]. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"[email protected]"> [email protected] </a>