Andrew Morton is kiadta a következő patchét a 2.5.44-hez. A preempt+SMP probléma megoldódott, amint kicserélte a gcc-2.91.66 csomagját gcc-2.95.3-ra. Ugye milyen sokat számít a fordító verziószáma?
A folt letölthető:
http://www.zip.com.au/../2.5.44-mm5/
Andrew levele:From: Andrew Morton
To: lkml , linux-mm@kvack.org
Subject: 2.5.44-mm5
Date: 24 Oct 2002 22:40:27 -0700
url: http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.44/2.5.44-mm5/
We seem to have found the dud patch. Things should be a little more stable...
The CONFIG_PREEMPT+SMP problem I was having went away when gcc-2.95.3 was used in place of 2.91.66. Which is a bit of a problem because _someone_ has to keep an eye on 2.91.66 compatibility as long as it continues to be required for sparc builds.
There is a memory corruption problem happening deep in the scsi code when the hot-n-cold pages patch is present. Current theory is that this is a use-after-free problem in scsi, and that the hot-n-cold pages patch is exposing it because its LIFO page queue will hand out a page immediately after this cpu freed it.
The workaround is a patch -R of
page-reservation.patch
pagevec-hot-cold-hint.patch
readahead-cold-pages.patch
hot_cold_pages.patch
in that order.
Added since 2.5.44-mm4:
+generic-nonlinear-mappings-D0.patch
Non-file-contiguous mmap support. Back in.
+md-01-driverfs-core.patch
+md-02-driverfs-topology.patch
+md-03-numa-meminfo.patch
+md-04-memblk_online_map.patch
+md-05-node_online_map.patch
Export lots of NUMA info via driverfs
+ipclock-2544mm4.patch
Reduced lock contention in the IPC code
+ipc-akpm.patch
Reduced inlines inthe IPC code
+kstat.patch
Use the per_cpu infrastructure for what remains of the old kernel_stat
accounting.
+kstat-arch.patch
Teach the non-ia32 architectures about the new kernel_stat regime.
All 107 patches:
rcu-idle-fix.patch
RCU idle detection fix
read-barrier-depends.patch
read_barrier_depends fix
deferred-lru-add-fix.patch
fix for adding mapped pages to the active list
ide-warnings.patch
Fix some IDE compile warnings
dmi-warning.patch
fix a compile warning in dmi_scan.c
scsi-reboot-fix.patch
kgdb.patch
misc.patch
misc fixes
ramfs-aops.patch
Move ramfs address_space ops into libfs
ramfs-prepare-write-speedup.patch
correctness fixes in libfs address_space ops
pipe-fix.patch
use correct wakeups in fs/pipe.c
dio-submit-fix.patch
rework direct-io for bio_add_page
dio-fine-alignment.patch
Allow O_DIRECT to use 512-byte alignment
file_ra_state_init.patch
Add a function to initialise file readahead state
less-unlikelies.patch
reduced buslocked traffic in the page allocator
running-iowait.patch
expose nr_running and nr_iowait task counts in /proc
intel-user-copy-taka.patch
Faster copy_*_user for Intel ia32 CPUs
shrink_slab-overflow.patch
uaccess-uninline.patch
ingo-oom-kill.patch
oom-killer changes for threaded apps
unbloat-pid.patch
Reduce RAM use in kernel/pid.c
per-cpu-ratelimits.patch
per-cpu-warning.patch
Fix per-cpu compile warnings on UP
cpuup-notifiers.patch
extended cpu hotplug notifiers
per-cpu-02-rcu.patch
cpu_possible rcu per_cpu data
per-cpu-03-timer.patch
cpu_possible timer percpu data
per-cpu-04-tasklet.patch
cpu_possible tasklet percpu data
per-cpu-05-bh.patch
cpu_possible bh_accounting
export-per-cpu-symbol.patch
create EXPORT_PER_CPU_SYMBOL
per-cpu-page_state.patch
add_timer_on.patch
add_timer_on(): function to start a timer on a particular CPU
slab-split-01-rename.patch
slab cleanup: rename static functions
slab-split-02-SMP.patch
slab: enable the cpu arrays on uniprocessor
slab-split-03-tail.patch
slab: reduced internal fragmentation
slab-split-04-drain.patch
slab: take the spinlock in the drain function.
slab-split-05-name.patch
slab: remove spaces from /proc identifiers
slab-split-06-mand-cpuarray.patch
slab: cleanups and speedups
slab-split-07-inline.patch
slab: uninline poisoning checks
slab-split-08-reap.patch
slab: reap timers
slab-timer.patch
slab-use-sem.patch
slab-cleanup.patch
Slab cleanup
slab-per-cpu.patch
Use CPU notifiers in slab
ingo-mmap-speedup.patch
Ingo's mmap speedup
mm-inlines.patch
remove some inlines from mm/*
o_streaming.patch
O_STREAMING support
shmem_getpage-unlock_page.patch
tmpfs 1/9 shmem_getpage unlock_page
shmem_getpage-beyond-eof.patch
tmpfs 2/9 shmem_getpage beyond eof
shmem_getpage-reading-holes.patch
tmpfs 3/9 shmem_getpage reading holes
shmem-fs-cleanup.patch
tmpfs 4/9 shmem fs cleanup
shmem_file_sendfile.patch
tmpfs 5/9 shmem_file_sendfile
shmem_file_write-update.patch
tmpfs 6/9 shmem_file_write update
shmem_getpage-flush_dcache.patch
tmpfs 7/9 shmem_getpage flush_dcache
loopable-tmpfs.patch
tmpfs 8/9 loopable tmpfs
event-II.patch
f_version/i_version cleanups
event-ext2.patch
f_version/i_version cleanups: ext2
mod_timer-race.patch
blkdev-o_direct-short-read.patch
Fix O_DIRECT blockdev reads at end-of-device
orlov-allocator.patch
blk-queue-bounce.patch
inline blk_queue_bounce
lseek-ext2_readdir.patch
remove lock_kernel() from ext2_readdir()
decoded-wchan-output.patch
pre-decoded wchan output in /proc/pid/wchan
write-deadlock.patch
Fix the generic_file_write-from-same-mmapped-page deadlock
rd-cleanup.patch
Cleanup and fix the ramdisk driver (doesn't work right yet)
hugetlb-prefault.patch
hugetlbpages: factor out some code for hugetlbfs
hugetlb-header-split.patch
Move hugetlb declarations into their own header
htlb-update.patch
hugetlb fixes and cleanups
hugetlb-page-count.patch
fix hugetlb thinko
hugetlbfs.patch
hugetlbfs file system
hugetlb-shm.patch
hugetlbfs backing for SYSV shared memory
truncate-bkl.patch
don't take the BKL in inode_setattr
akpm-deadline.patch
deadline scheduler tweaks
pipe-speedup.patch
user faster wakeups in the pipe code
dcache_rcu.patch
Use RCU for dcache
mpopulate.patch
remap_file_pages
shmem_populate.patch
tmpfs 9/9 Ingo's shmem_populate
ext23-acl-xattr-01.patch
ext23-acl-xattr-02.patch
ext23-acl-xattr-03.patch
ext23-acl-xattr-04.patch
ext23-acl-xattr-05.patch
ext23-acl-xattr-06.patch
ext23-acl-xattr-07.patch
ext23-acl-xattr-08.patch
ext23-acl-xattr-09.patch
ext23-acl-xattr-10.patch
ext23-acl-xattr-11.patch
ext2-mount-fix.patch
acl-xattr-on.patch
turn on posix acls and extended attributes
rmqueue_bulk.patch
bulk page allocator
free_pages_bulk.patch
Bulk page freeing function
hot_cold_pages.patch
Hot/Cold pages and zone->lock amortisation
readahead-cold-pages.patch
Use cache-cold pages for pagecache reads.
pagevec-hot-cold-hint.patch
hot/cold hints for truncate and page reclaim
page-reservation.patch
Page reservation API
wli-show_free_areas.patch
show_free_areas extensions
shpte-ng.patch
generic-nonlinear-mappings-D0.patch
generic nonlinear mappings
md-01-driverfs-core.patch
Core driverfs Topology
md-02-driverfs-topology.patch
i386 driverfs Topology
md-03-numa-meminfo.patch
NUMA meminfo for driverfs Topology
md-04-memblk_online_map.patch
create memblk_online_map
md-05-node_online_map.patch
create node_online_map
ipclock-2544mm4.patch
IPC lock contention reduction
ipc-akpm.patch
kstat.patch
kstat-arch.patch