Feel free to add new/remove fixed etc.

= Will be fixed in 2.6.23 =

== Unclassified ==
{{{
To:
Ian McDonald <ian.mcdonald@jandi.co.nz>
William Cohen <wcohen@redhat.com>
S. P. Prasanna <prasanna@in.ibm.com>

Subject    : CONFIG_DEBUG_RODATA prevents kprobes from working on 2.6.22-rc2
References : http://lkml.org/lkml/2007/5/23/202
Submitter  : William Cohen <wcohen@redhat.com>
             Ian McDonald <ian.mcdonald@jandi.co.nz>
Handled-By : S. P. Prasanna <prasanna@in.ibm.com>
Patch      : http://lkml.org/lkml/2007/6/7/2
Status     : patch available
}}}

= 2.6.23 regressions =

List of Aces http://kernelnewbies.org/known_regressions_stats (a.k.a statistics)

== Unclassified ==
{{{
Gabriel C <nix.or.die@googlemail.com>
Stefan Richter <stefanr@s5r6.in-berlin.de>
Jan Engelhardt <jengelh@linux01.gwdg.de>
Giacomo Catenazzi <cate@cateee.net>
Jeremy Fitzhardinge <jeremy@xensource.com>
Satyam Sharma <satyam.sharma@gmail.com>

Subject         : Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary')
References      : http://lkml.org/lkml/2007/7/19/202
Last known good : ?
Submitter       : Gabriel C <nix.or.die@googlemail.com>
Caused-By       : Jeremy Fitzhardinge <jeremy@xensource.com>
                  commit c70df74376c1e29a04e07e23dd3f4c384d6166dd
Handled-By      : ?
Status          : unknown

Subject         : disk error loop (panic?) ide_do_rw_disk-bad
References      : http://lkml.org/lkml/2007/7/17/467
Last known good : ?
Submitter       : Giacomo Catenazzi <cate@cateee.net>
Caused-By       : ?
Handled-By      : Jens Axboe <jens.axboe@oracle.com>
                  Linus Torvalds <torvalds@linux-foundation.org>
                  Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Patch           : http://lkml.org/lkml/2007/7/19/26
Status          : patch available

Subject         : Kconfig prompts without help text
References      : http://lkml.org/lkml/2007/7/16/326
Last known good : ?
Submitter       : Stefan Richter <stefanr@s5r6.in-berlin.de>
Caused-By       : ?
Handled-By      : Jan Engelhardt <jengelh@linux01.gwdg.de>
Patch           : http://lkml.org/lkml/2007/7/18/236
Status          : patch available

Subject         : Oops while modprobing phy fixed module
References      : http://lkml.org/lkml/2007/7/14/63
Last known good : ?
Submitter       : Gabriel C <nix.or.die@googlemail.com>
Caused-By       : Tejun Heo <htejun@gmail.com>
                  commit 3007e997de91ec59af39a3f9c91595b31ae6e08b
Handled-By      : Satyam Sharma <satyam.sharma@gmail.com>
                  Tejun Heo <htejun@gmail.com>
Status          : unknown
}}}

== Block layer ==
{{{
Jens Axboe <axboe@suse.de>
Peter M. Jones <pjones@redhat.com>
Larry Finger <Larry.Finger@lwfinger.net>
S.Çağlar Onur <caglar@pardus.org.tr>
Gabriel C <nix.or.die@googlemail.com>

Subject         : broken {sd,hd}parm
References      : http://lkml.org/lkml/2007/7/16/389
Last known good : ?
Submitter       : Gabriel C <nix.or.die@googlemail.com>
Caused-By       : ?
Handled-By      : ?
Status          : unknown

Subject         : bsg.c:(.init.text+0x43d): undefined reference to `scsi_register_interface'
References      : http://lkml.org/lkml/2007/7/16/343
Last known good : ?
Submitter       : Larry Finger <Larry.Finger@lwfinger.net>
Caused-By       : ?
Handled-By      : S.Çağlar Onur <caglar@pardus.org.tr>
Patch           : http://lkml.org/lkml/2007/7/16/380
Status          : patch available
}}}

== DRM ==
{{{
dri-devel@lists.sourceforge.net
Dave Airlie <airlied@linux.ie>
Michel Dänzer <michel@tungstengraphics.com>
Kristian Høgsberg <krh@redhat.com>
Charles Gagalac <charles.gagalac@gmail.com>

Subject         : wine locks up system
References      : http://lkml.org/lkml/2007/7/17/128
Last known good : ?
Submitter       : Charles Gagalac <charles.gagalac@gmail.com>
Caused-By       : commit d4e2cbe9cb9219fc924191a6baa2369140cb5ea8
                  Dave Airlie <airlied@linux.ie>
                  Michel Dänzer <michel@tungstengraphics.com>
                  Kristian Høgsberg <krh@redhat.com>
Handled-By      : 
Status          : unknown
}}}

== FireWire ==
{{{
linux1394-devel@lists.sourceforge.net
Kristian Hoegsberg <krh@redhat.com>
Stefan Richter <stefanr@s5r6.in-berlin.de>
Gregor Jasny <gjasny@web.de>

Subject         : BUG: scheduling while atomic (FireWire)
References      : http://bugzilla.kernel.org/show_bug.cgi?id=8735
Last known good : ?
Submitter       : Gregor Jasny <gjasny@web.de>
Caused-By       : ?
Handled-By      : Stefan Richter <stefanr@s5r6.in-berlin.de>
Patch           : http://bugzilla.kernel.org/attachment.cgi?id=12017
Status          : patch available
}}}

== FS ==
{{{
Eric Van Hensbergen <ericvh@gmail.com>
Meelis Roos <mroos@linux.ee>
Dave Jones <davej@redhat.com>
Cornelia Huck <cornelia.huck@de.ibm.com>
David Howells <dhowells@redhat.com>

Subject         : AFS compile broken
References      : http://lkml.org/lkml/2007/7/19/218
Last known good : ?
Submitter       : Meelis Roos <mroos@linux.ee>
Caused-By       : ?
Handled-By      : Cornelia Huck <cornelia.huck@de.ibm.com>
Patch           : http://lkml.org/lkml/2007/7/19/223
Status          : patch available

Subject         : fs/9p/v9fs.c:134: error: 'p9_debug_level' undeclared (first use in this function)
References      : http://lkml.org/lkml/2007/7/16/143
Last known good : ?
Submitter       : Meelis Roos <mroos@linux.ee>
Caused-By       : ?
Handled-By      : Meelis Roos <mroos@linux.ee>
Patch           : http://lkml.org/lkml/2007/7/16/143
                  http://lkml.org/lkml/2007/7/16/258 patch by Dave Jones <davej@redhat.com>
Status          : patch available
}}}

== Memory management ==
{{{
Christoph Lameter <clameter@sgi.com>
Jan Engelhardt <jengelh@computergmbh.de>
Paul Mundt <lethal@linux-sh.org>

Subject         : kmalloc zero size changes break i386
References      : http://lkml.org/lkml/2007/7/19/172
Last known good : ?
Submitter       : Andi Kleen <ak@suse.de>
Caused-By       : Christoph Lameter <clameter@sgi.com>
                  commit 6cb8f91320d3e720351c21741da795fed580b21b
Handled-By      : ?
Status          : unknown

Subject         : compile failure - slab/slob interspanking
References      : http://lkml.org/lkml/2007/7/17/470
Last known good : ce15fea8274acca06daa1674322d37a7d3f0036b
Submitter       : Jan Engelhardt <jengelh@computergmbh.de>
Caused-By       : Christoph Lameter <clameter@sgi.com>
                  commit 81cda6626178cd55297831296ba8ecedbfd8b52d
Handled-By      : Paul Mundt <lethal@linux-sh.org>
Patch           : http://lkml.org/lkml/2007/7/17/632
Status          : patch available
}}}

== Networking ==
{{{
<netdev@vger.kernel.org>
Randy Dunlap <randy.dunlap@oracle.com>
Trond Myklebust <Trond.Myklebust@netapp.com>
J. Bruce Fields <bfields@citi.umich.edu>
Haavard Skinnemoen <hskinnemoen@atmel.com>

Subject         : sunrpc-related Oops
References      : http://lkml.org/lkml/2007/7/15/91
Last known good : ?
Submitter       : Haavard Skinnemoen <hskinnemoen@atmel.com>
Caused-By       : ?
Handled-By      : Trond Myklebust <Trond.Myklebust@netapp.com>
Status          : unknown

Subject         : net/sunrpc/auth_gss/auth_gss.c:100?: warning: implicit declaration of function '*_kernel'
References      : http://lkml.org/lkml/2007/7/14/78
Last known good : ?
Submitter       : Randy Dunlap <randy.dunlap@oracle.com>
Caused-By       : ?
Handled-By      : J. Bruce Fields <bfields@citi.umich.edu>
Patch           : http://lkml.org/lkml/2007/7/14/95
Status          : patch available
}}}

== PPC ==
{{{
linuxppc-dev@ozlabs.org
Paul Mackerras <paulus@samba.org>
Bret Towe <magnade@gmail.com>

Subject         : ppc build failure arch/powerpc/kernel/pci-common.c:160: error: conflicting types for 'pcibios_add_platform_entries'
References      : http://lkml.org/lkml/2007/7/17/404
Last known good : ?
Submitter       : Bret Towe <magnade@gmail.com>
Caused-By       : ?
Handled-By      : ?
Status          : unknown
}}}

== SYSFS ==
{{{
Greg Kroah-Hartman <gregkh@suse.de>
Jean Delvare <khali@linux-fr.org>

Subject         : sysfs root link count broken in 2.6.22-git5
References      : http://lkml.org/lkml/2007/7/15/62
Last known good : ?
Submitter       : Jean Delvare <khali@linux-fr.org>
Caused-By       : ?
Handled-By      : ?
Status          : unknown
}}}

http://kernelnewbies.org/known_regressions_2622 regressions in 2.6.22

http://kernelnewbies.org/known_regressions_2621 regressions in 2.6.21 (unmaintained)



= Distro-tracked regressions =
== Gentoo ==
[http://bugs.gentoo.org/buglist.cgi?query_format=advanced&short_desc_type=allwordssubstr&short_desc=&long_desc_type=substring&long_desc=&bug_file_loc_type=allwordssubstr&bug_file_loc=&status_whiteboard_type=anywordssubstr&status_whiteboard=&keywords_type=allwords&keywords=&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&bug_status=RESOLVED&resolution=UPSTREAM&resolution=---&emailassigned_to1=1&emailtype1=substring&email1=&emailassigned_to2=1&emailreporter2=1&emailcc2=1&emailtype2=substring&email2=&bugidtype=include&bug_id=&chfieldfrom=&chfieldto=Now&chfieldvalue=&cmdtype=doit&order=Reuse+same+sort+as+last+time&query_based_on=Kernel+regressions&field0-0-0=status_whiteboard&type0-0-0=regexp&value0-0-0=linux-2\.6\..*-regression Click here]

This list is kept relatively up-to-date. Gentoo kernels are only lightly patched, and the majority of bugs have been reproduced on unpatched kernels and reported upstream. Gentoo only track release kernels, not -rc releases (it's nice to see the scope of Adrian's previous work increased).