- 28 May, 2005 20 commits
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Jeff Dike authored
We should turn off kmalloc when getting a fatal signal regardless of the mode we're in. Signed-off-by:
Jeff Dike <jdike@addtoit.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Eliminate an unused variable warning in ptrace.c and a size mismatch warning by adding a cast to __pa. Signed-off-by:
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Manu Abraham authored
Miscellaneous cleanup Signed-off-by:
Manu Abraham <manu@kromtek.com> Cc: Johannes Stezenbach <js@linuxtv.org> Signed-off-by:
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Manu Abraham authored
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Manu Abraham authored
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Manu Abraham authored
Cleanup unnecessary (and undesirable) casts, demodulator_priv is already a void*. Suggestion from Andrew Morton Signed-off-by:
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Manu Abraham authored
The bug was visible as a warning with gcc-3.4.4 (prerelease) Message: drivers/media/dvb/bt8xx/dst.c:1349: warning: initialization from incompatible pointer type. Signed-off-by:
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Vojtech Pavlik authored
Signed-off-by:
Vojtech Pavlik <vojtech@suse.cz> Signed-off-by:
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Patrick McManus authored
On Nov 16 2004 a change to intelfbdrv.c was commited (as part of 0.9.2 it looks like) that added __initdata to all of the module param variables that seems to create the opportunity for an oops. I've recently been chasing an OOPS (http://marc.theaimsgroup.com/?l=linux-kernel&m=111552250920370&w=2) I created by reading every file on the /sys file system and I've traced it back to this code in the intelfbdrv. Though I had root privs in my initial problem report, it turns out they are un-necessary to generate the oops - all you've got to do is "cat /sys/module/intelfb/parameters/mode" enough times and eventually it will oops. This is because sysfs automatically exports all module_param declarations to the sysfs file system.. which means those variables can be dynamically evaluated at any later time, which of course means marking them __initdata is a bad idea ;).. when they happen to be char *'s it is an especially bad idea ;). Applying the patch below clears up the OOPS for me. Signed-off-by:
Patrick McManus <mcmanus@ducksong.com> Signed-off-by:
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Pavel Machek authored
Do not send empty events to gpm. (Keyboards are assumed to have scroll wheel these days, that makes them part-mouse. That means typing on keyboard generates empty mouse events). From: Dmitry Torokhov <dtor_core@ameritech.net> Signed-off-by:
Pavel Machek <pavel@suse.cz> Signed-off-by:
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Shaohua Li authored
This driver wants to set PF_NOFREEZE. Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by:
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Benjamin Herrenschmidt authored
Recent kernels occasionally trigger a PMU timeout on some mac laptops, typically on wakeup from sleep. This seem to be caused by either a too big latency caused by the cpufreq switch on wakeup from sleep or by an interrupt beeing lost due to the reset of the interrupt controller done during wakeup. This patch makes that code more robust by stopping PMU auto poll activity around cpufreq changes on machines that use the PMU for such changes (long latency switching involving a CPU hard reset and flush of all caches) and by removing the reset of the open pic interrupt controller on wakeup (that can cause the loss of an interrupt and Darwin doesn't do it, so it must not be necessary). Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Siddha, Suresh B authored
This fixes 'smp_num_siblings' value on the systems with a buggy bios, which sets number of siblings to '2' even when HT is disabled. (more details are at http://bugzilla.kernel.org/show_bug.cgi?id=4359) I am planning to do more cleanup in this area (like moving smp_num_siblings to per cpuinfo) shortly. Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by:
Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by:
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John Hawkes authored
The "unhandled interrupts" catcher, note_interrupt(), increments a global desc->irq_count and grossly damages scaling of very large systems, e.g., >192p ia64 Altix, because of this highly contented cacheline, especially for timer interrupts. 384p is severely crippled, and 512p is unuseable. All calls to note_interrupt() can be disabled by booting with "noirqdebug", but this disables the useful interrupt checking for all interrupts. I propose eliminating note_interrupt() for all per-CPU interrupts. This was the behavior of linux-2.6.10 and earlier, but in 2.6.11 a code restructuring added a call to note_interrupt() for per-CPU interrupts. Besides, note_interrupt() is a bit racy for concurrent CPU calls anyway, as the desc->irq_count++ increment isn't atomic (which, if done, would make scaling even worse). Signed-off-by:
John Hawkes <hawkes@sgi.com> Signed-off-by:
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Adrian Bunk authored
num_cache_leaves is used in __devexit cache_remove_dev() and can therefore not be __devinit. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Stephen Rothwell authored
It appears that another test has been added in the Uniform CDROM layer that must be passed before a DVD-RAM is considered writeable. This patch implements an emulation of the needed packet command for the viocd driver. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Benjamin Herrenschmidt authored
The g5 support code broke some earlier models unfortunately as those bail out early from the detect function, before the point where I added the code to locate the PCI device for use with DMA allocations. This patch fixes it. Signed-off-by:
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Benjamin Herrenschmidt authored
This patch adds a missing attribute to pmac cpufreq so that "scaling_available_frequencies" works. It also cleans up the duplicate definitions for low and high speed constants. Signed-off-by:
John Clemens <clemej@alum.rpi.edu> Signed-off-by:
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Oliver Korpilla authored
For unspecified reasons, arch/x86_64/kernel/signal.c apparently needs ia32_unistd.h. Cc: Andi Kleen <ak@muc.de> Signed-off-by:
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Dave Jones authored
The neutering of the pwc driver was incomplete. It still references some now-dead files.. Signed-off-by:
Dave Jones <davej@redhat.com> Signed-off-by:
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- 27 May, 2005 10 commits
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Alexander Nyberg authored
Even after the previous fix you can still set CONFIG_ACPI_BOOT indirectly even without CONFIG_ACPI by choosing CONFIG_PCI and CONFIG_PCI_MMCONFIG. That doesn't build very well either. This makes PCI_MMCONFIG depend on ACPI, fixing that hole. [ I guess in theory Kconfig could follow the whole chain of dependencies for things that get selected, but that sounds insanely complicated, so we'll just fix up these things by hand. --Linus ] Signed-off-by:
Alexander Nyberg <alexn@telia.com> Signed-off-by:
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Len Brown authored
Fix 2.6.12 CONFIG_ACPI=n build regression. CONFIG_ACPI_BOOT shall be set only if CONFIG_ACPI. Signed-off-by:
Len Brown <len.brown@intel.com> Signed-off-by:
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Alexander Nyberg authored
quirk_via_irqpic can't be __devinit for swsuspend Signed-off-by:
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Len Brown authored
Delete quirk_via_bridge(), restore quirk_via_irqpic() -- but now improved to be invoked upon device ENABLE, and now only for VIA devices -- not all devices behind VIA bridges. Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by:
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Paul Jackson authored
There is a race in the kernel cpuset code, between the code to handle notify_on_release, and the code to remove a cpuset. The notify_on_release code can end up trying to access a cpuset that has been removed. In the most common case, this causes a NULL pointer dereference from the routine cpuset_path. However all manner of bad things are possible, in theory at least. The existing code decrements the cpuset use count, and if the count goes to zero, processes the notify_on_release request, if appropriate. However, once the count goes to zero, unless we are holding the global cpuset_sem semaphore, there is nothing to stop another task from immediately removing the cpuset entirely, and recycling its memory. The obvious fix would be to always hold the cpuset_sem semaphore while decrementing the use count and dealing with notify_on_release. However we don't want to force a global semaphore into the mainline task exit path, as that might create a scaling problem. The actual fix is almost as easy - since this is only an issue for cpusets using notify_on_release, which the top level big cpusets don't normally need to use, only take the cpuset_sem for cpusets using notify_on_release. This code has been run for hours without a hiccup, while running a cpuset create/destroy stress test that could crash the existing kernel in seconds. This patch applies to the current -linus git kernel. Signed-off-by:
Paul Jackson <pj@sgi.com> Acked-by:
Simon Derr <simon.derr@bull.net> Acked-by:
Dinakar Guniguntala <dino@in.ibm.com> Signed-off-by:
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Alan Cox authored
The original pwc author raised some questions about the reverse engineering of the decompressor algorithms used in the pwc driver. Having done some detailed investigation it appears those concerns that clean room policy was not followed are reasonable. I've also had a friendly discussion with Philips to ask their view on this. This removes the problem items of code which reduces the pwc functionality in the kernel a little but leaves all the framework for setup that will be needed for decompressors in user space (where they eventually belong). This change set is designed to be the minimal risk change set given that 2.6.12 is hopefully close to hand, with a view to merging the much updated pwc code in 2.6.13 series kernels. Someone else can then redo the decompressors properly (clean room) in user space. Note that while its easy to say that it should have been caught earlier, but the violation was really only obvious to someone who had access to both the proprietary source and the 'GPL' source.
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Linus Torvalds authored
The change to require the DMA length to be only word-aligned was not safe.
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Christoph Hellwig authored
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Christoph Hellwig authored
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- 26 May, 2005 10 commits
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Roland McGrath authored
We fixed this bug before, but it didn't take. It may have been the case that the problem was first noticed to occur in a CONFIG_REGPARM compile. But it's not regparm functions that need not to make tail calls, it's asmlinkage functions called with a user pt_regs frame on the stack supplying their arguments. prevent_tail_call probably doesn't do anything at all in regparm functions (your argument registers are going to be clobbered, period). It was a braino to conditionalize that definition in the first place. Signed-off-by:
Roland McGrath <roland@redhat.com> Signed-off-by:
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Michael Chan authored
A new driver bnx2 for Broadcom bcm5706 is available. The patch also includes new 1000BASE-X advertisement bit definitions in mii.h Thanks to David Miller and Jeff Garzik for reviewing and their valuable feedback. Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alexey Dobriyan authored
"_s" suffix is certainly of hungarian origin. Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Alexey Dobriyan authored
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Hideaki YOSHIFUJI authored
[XFRM] Call dst_check() with appropriate cookie This fixes infinite loop issue with IPv6 tunnel mode. Signed-off-by:
Kazunori Miyazawa <kazunori@miyazawa.org> Signed-off-by:
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by:
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Jay Vosburgh authored
Correcting the list traversal makes the problem go away. Signed-off-by:
Jay Vosburgh <fubar@us.ibm.com> Signed-off-by:
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Stephen Hemminger authored
Here is a fixed up version of the reorder feature of netem. It is the same as the earlier patch plus with the bugfix from Julio merged in. Has expected backwards compatibility behaviour. Go ahead and merge this one, the TCP strangeness I was seeing was due to the reordering bug, and previous version of TSO patch. Signed-off-by:
Stephen Hemminger <shemminger@osdl.org> Signed-off-by:
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Stephen Hemminger authored
Netem works better if there if packets are just queued in the inner discipline rather than having a separate delayed queue. Change to use the dequeue/requeue to peek like TBF does. By doing this potential qlen problems with the old method are avoided. The problems happened when the netem_run that moved packets from the inner discipline to the nested discipline failed (because inner queue was full). This happened in dequeue, so the effective qlen of the netem would be decreased (because of the drop), but there was no way to keep the outer qdisc (caller of netem dequeue) in sync. The problem window is still there since this patch doesn't address the issue of requeue failing in netem_dequeue, but that shouldn't happen since the sequence dequeue/requeue should always work. Long term correct fix is to implement qdisc->peek in all the qdisc's to allow for this (needed by several other qdisc's as well). Signed-off-by:
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Stephen Hemminger authored
Handle duplication of packets in netem by re-inserting at top of qdisc tree. This avoid problems with qlen accounting with nested qdisc. This recursion requires no additional locking but will potentially increase stack depth. Signed-off-by:
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