|
ts from Dan''''s stuff - they need no kernel
core changes for most platforms. That means we can treat it as a random
driver merge.
PRI3
o alan: 2.4 has some fixes for tsc handling bugs. One where some bioses in
SMM mode mess up our toggle on the time high/low or mangle the counter and
one where a few chips need religious use of _p for timer access and we
don''''t do that. This is forward porting little bits of fixup.
ACPI HZ stuff we can''''t trap - a lot of ACPI is implemented as outb''''s
triggering SMM traps
PRI1
arch/x86_64/
~~~~~~~~~~~~
(Andi)
o time handling is broken. Need to move up 2.4 time.c code.
PRI1
o Another report of a crash at shutdown on Simics with no iommu when all
memory was used. Could be related to the one above.
PRI1
o NMI watchdog seems to tick too fast
PRI2
o not very well tested. probably more bugs lurking.
PRI1
o need to coredump 64bit vsyscall code with dwarf2
PRI2
o move 64bit signal trampolines into vsyscall code and add dwarf2 for it.
PRI1
o describe kernel assembly with dwarf2 annotations for kgdb (currently
waiting on some binutils changes for this)
PRI3
arch/alpha/
~~~~~~~~~~~
o rth: Ptrace writes are broken. This means we can''''t (reliably) set
breakpoints or modify variables from gdb.
PRI1
arch/arm/
~~~~~~~~~
o rmk: missing raw keyboard translation tables for all ARM machines.
Haven''''t even looked into this at all. This could be messy since there
isn''''t an ARM architecture standard. I''''m presently hoping that it won''''t be
an issue. If it does, I guess we''''ll see drivers/char/keyboard.c explode.
PRI2
arch/others/
~~~~~~~~~~~~
o SH/SH-64 need resyncing, as do some other ports. No impact on
mainstream platforms hopefully.
PRI2
o IA64 needs merging, has impact on core code
PRI1
arch/s390/
~~~~~~~~~
o A nastly memory management problem causes random crashes. These appear
to be fixed/hidden by the objrmap patch, more investigation is needed.
PRI1
drivers/s390/
~~~~~~~~~~~~~
o Early userspace and 64 bit dev_t will allow the removal of most of
dasd_devmap.c and dasd_genhd.c.
PRI2
o The 3270 console driver needs to be replaced with a working one
(prototype is there, needs to be finished).
PRI2
o Minor interface changes are pending in cio/ when the z990 machines are
out.
There are some more things being worked on that are either post-2.6.0 or
are likely to remain outside of the official kernel (i.e. not for your
list):
PRI3
o Jan Glauber is working on a fix for the timer issues related to running
on virtualized CPUs (wall-clock vs. cpu time).
PRI1
o new zfcp fibre channel driver
PRI3
o the qeth driver will become GPL soon
PRI3
o a block device driver for ramdisks shared among virtual machines
PRI3
o driver for crypto hardware
PRI2
o ''''claw'''' network device driver
PRI3
-
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※diff格式文件:
From: Andrew Morton <akpm@digeo.com>
To: linux-kernel@vger.kernel.org
Subject: must-fix, version 6
Date: Fri, 30 May 2003 16:37:20 -0700
There are probably quite a few things here which are in progress or are
already fixed. Could people please send updates.
I shall separate the "must fix" list from the "late features and speedups"
list. It''''s a bit confusing having them combined.
I have attempted to prioritise the "late features and speedups" items along
the following lines:
PRI1: We''''re totally lame if this doesn''''t get in
PRI2: Would be nice
PRI3: Not very important
I basically guessed. Feel free to argue.
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/must-fix/
Changes since version 5:
--- /tmp/must-fix-5.txt Fri May 30 16:29:05 2003
+++ /tmp/must-fix-6.txt Fri May 30 16:29:12 2003
@@ -79,21 +79,21 @@
o CD burning. There are still a few quirks to solve wrt SG_IO and ide-cd.
Jens: The basic hang has been solved (double fault in ide-cd), there still
seems to be some cases that don''''t work too well. Don''''t really have a
handle on those :/
o lmb: Last time I looked at the multipath code (2.5.50 or so) it also
looked pretty broken; I plan to port forward the changes we did on 2.4
before KS.
-o elevator-noop is broken.
+o loop.c: fix http://bugzilla.kernel.org/show_bug.cgi?id=192
drivers/input/
~~~~~~~~~~~~~~
o rmk: unconverted keyboard/mouse drivers (there''''s a deadline of 2.6.0
currently on these remaining in my/Linus'''' tree.)
o viro: large absence of locking.
o synaptic touchpad support
@@ -231,70 +231,60 @@
doesn''''t get wedged.
o qlogic drivers: merge qlogicisp, feral with a view to dropping qlogicfc
and qlogicisp
o jejb: and merge the qla2xxx too
fs/
~~~
-o ext3 data=journal mode is bust.
+o ext3 data=journal mode is bust. (fix is in progress)
o ext3/htree readdir can return "." and ".." in unexpected order, which
might break buggy userspace apps. Ted has a fix planned.
o AIO/direct-IO writes can race with truncate and wreck filesystems.
- o Easy fix is to only allow the feature for S_ISBLK files.
+ o Easy fix is to add an rwsem to the inode.
o hch: devfs: there''''s a fundamental lookup vs devfsd race that''''s only
fixable by introducing a lookup vs devfs deadlock. I can''''t see how this is
fixable without getting rid of the current devfsd design. Mandrake seems
to have a workaround for this so this is at least not triggered so easily,
but that''''s not what I''''d consider a fix..
o viro: fs/char_dev.c needs removal of aeb stuff and merge of cdev-cidr.
In progress.
o forward-port sct''''s O_DIRECT fixes
o viro: there is some generic stuff for namei/namespace/super, but that''''s a
slow-merge and can go in 2.6 just fine
o andi: also soft needs to be fixed - there are quite a lot of
uninterruptible waits in sunrpc/nfs
o trond: NFS has a mmap-versus-truncate problem
-kernel/sched.c/
-~~~~~~~~~~~~~~~
-
-o O(1) scheduler starvation, poor behaviour seems unresolved.
-
- Jens: "I''''ve been running 2.5.67-mm3 on my workstation for two days, and
- it still doesn''''t feel as good as 2.4. It''''s not a disaster like some
- revisisons ago, but it still has occasional CPU "stalls" where it feels
- like a process waits for half a second of so for CPU time. That''''s is very
- noticable."
-
- Also see Mike Galbraith''''s work.
-
- Conclusion: the scheduler has issues, lots of people working on it. Rick
- Lindsley, Andrew Theurer.
+kernel/sched.c
+~~~~~~~~~~~~~~
o "Persistent starvation"
http://www.hpl.hp.com/research/linux/kernel/o1-starve.php
- ingo: "this is mostly invalid".
+ ingo: "basically by calling sleep(1) in an infinite loop you can end up
+ expiring yourself. The testcode (test-starve.c) triggers this. This is
+ solved by going to sub-timeslices. Which i''''ve got done a few weeks ago and
+ it has seen some testing by others as well.
o Overeager affinity in presence of repeated yields
http://www.hpl.hp.com/research/linux/kernel/o1-openmp.php
ingo: this is valid. fix is in progress.
o The "thud.c" test app. This is a exploit for the interactivity
estimator. it''''s unlikely to bite in real-world cases. Needs watching.
Can be ameliorated by setting nice values.
@@ -313,35 +303,49 @@
IMHO
(alan has patch)
o nasty task refcounting bug is taking ages to track down. (bugzilla ref?)
o viro: core sysctl code is racy. And its interaction wiuth sysfs
o gettimeofday goes backwards. Merge up David M-T''''s fixes?
+o Daniel Jacobowitz <dan@debian.org>: when CLONE_DETACHED threads were
+ removed from /proc several approaches were suggested to let procps find out
+ about them and none of th 上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] 下一页
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