- Aug 23, 2006
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Greg Kroah-Hartman authored
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Danny Tholen authored
Recently a patch was added for preliminary suspend/resume handling on !PPC_PMAC. However, this broke both suspend and firewire on powerpc because it saves the pci state after the device has already been disabled. This moves the save state to before the pmac specific code. Signed-off-by:
Danny Tholen <obiwan@mailmij.org> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ben Collins <bcollins@ubuntu.com> Cc: Jody McIntyre <scjody@modernduck.com> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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NeilBrown authored
At the point where this 'atomic_add' is, rdev could be NULL, as seen by the fact that we test for this in the very next statement. Further is it is really the wrong place of the add. We could add to the count of corrected errors once the are sure it was corrected, not before trying to correct it. Signed-off-by:
Neil Brown <neilb@suse.de> Signed-off-by:
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Rafael J. Wysocki authored
There is a bug in mm/swapfile.c#swap_type_of() that makes swsusp only be able to use the first active swap partition as the resume device. Fix it. Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Cc: Hugh Dickins <hugh@veritas.com> Acked-by:
Pavel Machek <pavel@suse.cz> Signed-off-by:
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Michal Miroslaw authored
Fix BUG I tripped on while testing failover and multipathing. BUG shows up on error path in multipath_ctr() when parse_priority_group() fails after returning at least once without error. The fix is to initialize m->ti early - just after alloc()ing it. BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c027c3d2 *pde = 00000000 Oops: 0000 [#3] Modules linked in: qla2xxx ext3 jbd mbcache sg ide_cd cdrom floppy CPU: 0 EIP: 0060:[<c027c3d2>] Not tainted VLI EFLAGS: 00010202 (2.6.17.3 #1) EIP is at dm_put_device+0xf/0x3b eax: 00000001 ebx: ee4fcac0 ecx: 00000000 edx: ee4fcac0 esi: ee4fc4e0 edi: ee4fc4e0 ebp: 00000000 esp: c5db3e78 ds: 007b es: 007b ss: 0068 Process multipathd (pid: 15912, threadinfo=c5db2000 task=ef485a90) Stack: ec4eda40 c02816bd ee4fc4c0 00000000 f7e89498 f883e0bc c02816f6 f7e89480 f7e8948c c0281801 ffffffea f7e89480 f883e080 c0281ffe 00000001 00000000 00000004 dfe9cab8 f7a693c0 f883e080 f883e0c0 ca4b99c0 c027c6ee 01400000 Call Trace: <c02816bd> free_pgpaths+0x31/0x45 <c02816f6> free_priority_group+0x25/0x2e <c0281801> free_multipath+0x35/0x67 <c0281ffe> multipath_ctr+0x123/0x12d <c027c6ee> dm_table_add_target+0x11e/0x18b <c027e5b4> populate_table+0x8a/0xaf <c027e62b> table_load+0x52/0xf9 <c027ec23> ctl_ioctl+0xca/0xfc <c027e5d9> table_load+0x0/0xf9 <c0152146> do_ioctl+0x3e/0x43 <c0152360> vfs_ioctl+0x16c/0x178 <c01523b4> sys_ioctl+0x48/0x60 <c01029b3> syscall_call+0x7/0xb Code: 97 f0 00 00 00 89 c1 83 c9 01 80 e2 01 0f 44 c1 88 43 14 8b 04 24 59 5b 5e 5f 5d c3 53 89 c1 89 d3 ff 4a 08 0f 94 c0 84 c0 74 2a <8b> 01 8b 10 89 d8 e8 f6 fb ff ff 8b 03 8b 53 04 89 50 04 89 02 EIP: [<c027c3d2>] dm_put_device+0xf/0x3b SS:ESP 0068:c5db3e78 Signed-off-by:Michal Miroslaw <mirq-linux@rere.qmqm.pl> Acked-by:
Alasdair G Kergon <agk@redhat.com> Signed-off-by:
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Alexey Kuznetsov authored
[IPV4]: severe locking bug in fib_semantics.c Found in 2.4 by Yixin Pan <yxpan@hotmail.com>. > When I read fib_semantics.c of Linux-2.4.32, write_lock(&fib_info_lock) = > is used in fib_release_info() instead of write_lock_bh(&fib_info_lock). = > Is the following case possible: a BH interrupts fib_release_info() while = > holding the write lock, and calls ip_check_fib_default() which calls = > read_lock(&fib_info_lock), and spin forever. Signed-off-by:
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Kirill Korotaev authored
This patch prevents cross-region mappings on IA64 and SPARC which could lead to system crash. davem@ confirmed: "This looks fine to me." :) Signed-Off-By:
Pavel Emelianov <xemul@openvz.org> Signed-Off-By:
Kirill Korotaev <dev@openvz.org> Signed-off-by:
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Patrick McHardy authored
[NETFILTER]: ip_tables: fix table locking in ipt_do_table table->private might change because of ruleset changes, don't use it without holding the lock. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Daniel Ritz authored
- add the ICH6(R) LPC to the ICH6 ACPI quirks. currently only the ICH6-M is handled. [ PCI_DEVICE_ID_INTEL_ICH6_1 is the ICH6-M LPC, ICH6_0 is the ICH6(R) ] - remove the wrong quirk calling asus_hides_smbus_lpc() for ICH6. the register modified in asus_hides_smbus_lpc() has a different meaning in ICH6. Signed-off-by:
Daniel Ritz <daniel.ritz@gmx.ch> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by:
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Olaf Hering authored
The icom driver uses request_firmware() and thus needs to select FW_LOADER. Signed-off-by:
maximilian attems <maks@sternwelten.at> Signed-off-by:
Olaf Hering <olh@suse.de> Signed-off-by:
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Kirill Korotaev authored
sys_getppid() optimization can access a freed memory. On kernels with DEBUG_SLAB turned ON, this results in Oops. As Dave Hansen noted, this optimization is also unsafe for memory hotplug. So this patch always takes the lock to be safe. [oleg@tv-sign.ru: simplifications] Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by:
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Mark Huang authored
[NETFILTER]: ulog: fix panic on SMP kernels Fix kernel panic on various SMP machines. The culprit is a null ub->skb in ulog_send(). If ulog_timer() has already been scheduled on one CPU and is spinning on the lock, and ipt_ulog_packet() flushes the queue on another CPU by calling ulog_send() right before it exits, there will be no skbuff when ulog_timer() acquires the lock and calls ulog_send(). Cancelling the timer in ulog_send() doesn't help because it has already been scheduled and is running on the first CPU. Similar problem exists in ebt_ulog.c and nfnetlink_log.c. Signed-off-by:
Mark Huang <mlhuang@cs.princeton.edu> Signed-off-by:
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Kylene Jo Hall authored
Under stress testing I found that the interrupt is not always cleared. This is a bug and this patch should go into 2.6.18 and 2.6.17.x. Signed-off-by:
Kylene Hall <kjhall@us.ibm.com> Signed-off-by:
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Stephen Hemminger authored
This patch will linearize and check there is enough data. It handles the pprop case as well as avoiding a whole audit of the routing code. Signed-off-by:Stephen Hemminger <shemminger@osdl.org>
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Andrew Morton authored
We've confirmed that the debug version of write_lock() can get stuck for long enough to cause NMI watchdog timeouts and hence a crash. We don't know why, yet. Disable it for now. Also disable the similar read_lock() code. Just in case. Thanks to Dave Olson <olson@unixfolk.com> for reporting and testing. Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Diego Calleja authored
In bugzilla #6941, Jens Kilian reported: "The function befs_utf2nls (in fs/befs/linuxvfs.c) writes a 0 byte past the end of a block of memory allocated via kmalloc(), leading to memory corruption. This happens only for filenames which are pure ASCII and a multiple of 4 bytes in length. [...] Without DEBUG_SLAB, this leads to further corruption and hard lockups; I believe this is the bug which has made kernels later than 2.6.8 unusable for me. (This must be due to changes in memory management, the bug has been in the BeFS driver since the time it was introduced (AFAICT).) Steps to reproduce: Create a directory (in BeOS, naturally :-) with files named, e.g., "1", "22", "333", "4444", ... Mount it in Linux and do an "ls" or "find"" This patch implements the suggested fix. Credits to Jens Kilian for debugging the problem and finding the right fix. Signed-off-by:
Diego Calleja <diegocg@gmail.com> Cc: Jens Kilian <jjk@acm.org> Signed-off-by:
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David Miller authored
[RTNETLINK]: Fix IFLA_ADDRESS handling. The ->set_mac_address handlers expect a pointer to a sockaddr which contains the MAC address, whereas IFLA_ADDRESS provides just the MAC address itself. So whip up a sockaddr to wrap around the netlink attribute for the ->set_mac_address call. Signed-off-by:
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Dmitry Mishin authored
[NET]: add_timer -> mod_timer() in dst_run_gc() Patch from Dmitry Mishin <dim@openvz.org>: Replace add_timer() by mod_timer() in dst_run_gc in order to avoid BUG message. CPU1 CPU2 dst_run_gc() entered dst_run_gc() entered spin_lock(&dst_lock) ..... del_timer(&dst_gc_timer) fail to get lock .... mod_timer() <--- puts timer back to the list add_timer(&dst_gc_timer) <--- BUG because timer is in list already. Found during OpenVZ internal testing. At first we thought that it is OpenVZ specific as we added dst_run_gc(0) call in dst_dev_event(), but as Alexey pointed to me it is possible to trigger this condition in mainstream kernel. F.e. timer has fired on CPU2, but the handler was preeempted by an irq before dst_lock is tried. Meanwhile, someone on CPU1 adds an entry to gc list and starts the timer. If CPU2 was preempted long enough, this timer can expire simultaneously with resuming timer handler on CPU1, arriving exactly to the situation described. Signed-off-by:
Dmitry Mishin <dim@openvz.org> Signed-off-by:
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Kirill Korotaev authored
[IPV4]: Limit rt cache size properly. During OpenVZ stress testing we found that UDP traffic with random src can generate too much excessive rt hash growing leading finally to OOM and kernel panics. It was found that for 4GB i686 system (having 1048576 total pages and 225280 normal zone pages) kernel allocates the following route hash: syslog: IP route cache hash table entries: 262144 (order: 8, 1048576 bytes) => ip_rt_max_size = 4194304 entries, i.e. max rt size is 4194304 * 256b = 1Gb of RAM > normal_zone Attached the patch which removes HASH_HIGHMEM flag from alloc_large_system_hash() call. Signed-off-by:
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Stephen Hemminger authored
On the 88E805X chipsets (used in laptops), the PHY was not getting powered out of shutdown properly. The variable reg1 was getting reused incorrectly. This is probably the cause of the bug. http://bugzilla.kernel.org/show_bug.cgi?id=6471 Signed-off-by:
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Eric Sandeen authored
blatantly ripped off from Neil Brown's ext2 patch. Signed-off-by:
Eric Sandeen <sandeen@sandeen.net> Acked-by:
"Theodore Ts'o" <tytso@mit.edu> Signed-off-by:
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- Aug 22, 2006
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Greg Kroah-Hartman authored
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Oleg Nesterov authored
An exiting task or process which didn't do I/O yet have no io context, elv_unregister() should check it is not NULL. Signed-off-by:
Jens Axboe <axboe@suse.de> Signed-off-by:
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Jan Kara authored
UDF code is not really ready to handle extents larger that 1GB. This is the easy way to forbid creating those. Also truncation code did not count with the case when there are no extents in the file and we are extending the file. Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
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Sridhar Samudrala authored
sctp_make_abort_user() now takes the msg_len along with the msg so that we don't have to recalculate the bytes in iovec. It also uses memcpy_fromiovec() so that we don't go beyond the length allocated. It is good to have this fix even if verify_iovec() is fixed to return error on overflow. Signed-off-by:
Sridhar Samudrala <sri@us.ibm.com> Signed-off-by:
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- Aug 18, 2006
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Greg Kroah-Hartman authored
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Olof Johansson authored
Clear HID0[en_attn] at CPU init time on PPC970. Closes CVE-2006-4093. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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- Aug 07, 2006
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Greg Kroah-Hartman authored
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- Aug 06, 2006
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Takashi Iwai authored
Accept O_RDWR at opening a PCM OSS device that is read- or write-only, just for the compatibility with the behavior of older versions. Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Steven Rostedt authored
While helping someone to submit a patch to the stable branch, I noticed that the stable branch is not listed in the MAINTAINERS file. This was after I went there to look for the email addresses for the stable branch list (stable@kernel.org). This patch adds the stable branch to the maintainers file so that people can find where to send patches when they have a fix for the stable team. Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Chris Wright <chrisw@sous-sol.org> Signed-off-by:
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Paul Fulghum authored
Serialize processing of tty buffers in flush_to_ldisc to fix (very rare) corruption of tty buffer free list on SMP systems. Signed-off-by:
Paul Fulghum <paulkf@microgate.com> Acked-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Martin Schwidefsky authored
[S390] fix futex_atomic_cmpxchg_inatomic futex_atomic_cmpxchg_inatomic has the same bug as the other atomic futex operations: the operation needs to be done in the user address space, not the kernel address space. Add the missing sacf 256 & sacf 0. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Andrew de Quincey authored
Currently I am doing lots of refactoring work in the dvb tree. This bugfix became necessary to fix 2.6.17 whilst I was in the middle of this work. Unfortunately after I tested the original code for the patch, I generated the diff against the wrong tree (I accidentally used a tree with part of the refactoring code in it). This resulted in the reported compile errors because that tree (a) was incomplete, and (b) used features which are simply not in the mainline kernel yet. Many apologies for the error and problems this has caused. :( Signed-off-by:
Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Andrew Morton authored
Fix a bug identified by Zou Nan hai <nanhai.zou@intel.com>: If the system is in state SYSTEM_BOOTING, and need_resched() is true, cond_resched() returns true even though it didn't reschedule. Consequently need_resched() remains true and JBD locks up. Fix that by teaching cond_resched() to only return true if it really did call schedule(). cond_resched_lock() and cond_resched_softirq() have a problem too. If we're in SYSTEM_BOOTING state and need_resched() is true, these functions will drop the lock and will then try to call schedule(), but the SYSTEM_BOOTING state will prevent schedule() from being called. So on return, need_resched() will still be true, but cond_resched_lock() has to return 1 to tell the caller that the lock was dropped. The caller will probably lock up. Bottom line: if these functions dropped the lock, they _must_ call schedule() to clear need_resched(). Make it so. Also, uninline __cond_resched(). It's largeish, and slowpath. Acked-by:
Linus Torvalds <torvalds@osdl.org> Signed-off-by:
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Auke Kok authored
The Intel(R) PRO/1000 82572EI card is fully supported by 7.0.33-k2 and onward. Add the device ID so this card works with 2.6.17.y onward. This device ID was accidentally omitted. Signed-off-by:
Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by:
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Neil Brown authored
The inode number out of an NFS file handle gets passed eventually to ext3_get_inode_block() without any checking. If ext3_get_inode_block() allows it to trigger an error, then bad filehandles can have unpleasant effect - ext3_error() will usually cause a forced read-only remount, or a panic if `errors=panic' was used. So remove the call to ext3_error there and put a matching check in ext3/namei.c where inode numbers are read off storage. [akpm@osdl.org: fix off-by-one error] Signed-off-by:
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Badari Pulavarty authored
For files other than IFREG, nobh option doesn't make sense. Modifications to them are journalled and needs buffer heads to do that. Without this patch, we get kernel oops in page_buffers(). Signed-off-by:
Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by:
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Neil Brown authored
Fix race related problem when adding items to and svcrpc auth cache. If we don't find the item we are lookng for, we allocate a new one, and then grab the lock again and search to see if it has been added while we did the alloc. If it had been added we need to 'cache_put' the newly created item that we are never going to use. But as it hasn't been initialised properly, putting it can cause an oops. So move the ->init call earlier to that it will always be fully initilised if we have to put it. Thanks to Philipp Matthias Hahn <pmhahn@svs.Informatik.Uni-Oldenburg.de> for reporting the problem. Signed-off-by:
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Stefan Richter authored
At least Maxtor OneTouch III require a "start stop unit" command after auto spin-down before the next access can proceed. This patch activates the responsible code in scsi_mod for all Maxtor SBP-2 disks. https://bugzilla.novell.com/show_bug.cgi?id=183011 Maybe that should be done for all SBP-2 disks, but better be cautious. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
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Andrew Morton authored
We can immediately bale from invalidate_bdev() if the blockdev has no pagecache. This solves the huge IPI storms which hald is causing on the big ia64 machines when it polls CDROM drives. Acked-by:
Jes Sorensen <jes@sgi.com> Signed-off-by:
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