OK, this confused me: Function reordering (REORDER) [N/y/?] (NEW) ? This option enables the toolchain to reorder functions for a more optimal TLB usage. If you have pretty much any version of binutils, this can increase your kernel build time by roughly one minute. "If you have pretty much any version of binutils"? Huh? You mean "This will slow your kernel build by about a minute"? Rusty. -

Some gcc put this function in .init.text because the header didn't match. For 2.6.21-rc. Zach

Sorry, but when you ask for NUMA emulation you will get it. I don't see any point in a "half way only for some subsystems I like" NUMA emulation. It's unlikely that your ideas of where it is useful and where is not matches other NUMA emulation user's ideas too. Besides adding such a secondary node space would be likely a huge long term mainteance issue. I just can it see breaking with every non trivial change. NACK. -Andi -

Hi Masami, I recently had to add support for inline code patching on i386 to my marker infrastructure. Clearly, it looks like what is done in djprobes, with the main difference that I only patch the immediate value of a 2 bytes "load immediate" instruction. I think I found a solution to one of the main issues with djprobes : it currently has to wait for each CPU to hit the probe before being sure that it's safe to patch the code with something else than an int3. This is due to PIII errata 49, wh...

Is that a PATA cd-drive? If so, then you must have hooked it up to the JMicron IDE controller. That driver is just plain buggy. I gave up on it for my own P5B-VM. The libata version works better than the drivers/ide, but I gave up on it and got a SATA DVD/RW drive. Off topic: do your USB ports power off when the system shuts down? Mine don't -- the +5V continues on them.. I'd love a tip on how to turn them off completely at shutdown. Cheers -

From: Rafael J. Wysocki <rjw@sisk.pl> Make swsusp use memory bitmaps instead of page flags for marking 'nosave' and free pages. This allows us to 'recycle' two page flags that can be used for other purposes. Also, the memory needed to store the bitmaps is allocated when necessary (ie. before the suspend) and freed after the resume which is more reasonable. The patch is designed to minimize the amount of changes and there are some nice simplifications and optimizations possible on top of i...

From: Rafael J. Wysocki <rjw@sisk.pl> Replace direct invocations of SetPageNosave(), SetPageNosaveFree() etc. with calls to inline functions that can be changed in subsequent patches without modifying the code calling them. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> --- include/linux/suspend.h | 33 +++++++++++++++++++++++++++++++++ kernel/power/snapshot.c | 48 +++++++++++++++++++++++++----------------------- mm/page_alloc.c ...

Folks, I'm getting this sort of message in my logs on occasion and my system dies on me some time later. Mar 13 08:52:02 localhost kernel: [ 343.931624] Slab corruption: start=d2756f04, len=208 Mar 13 08:52:02 localhost kernel: [ 343.932366] Redzone: 0x5a2cf071/0x5a2cf071. Mar 13 08:52:02 localhost kernel: [ 343.932797] Last user: [<c0155562>](file_free_rcu+0xf/0x11) Mar 13 08:52:02 localhost kernel: [ 343.933429] 090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 75 6b Mar 13 08:52:02 l...

ACK. (I hope it still applies to latest mainline). -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -

I just retested - 'date' does not advance after resume for me. This is with NO_HZ *not* set. Sorry it took so long. -- MST -

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I don't think we have to worry about DoS with this scheduler. Note the load average; it happily wraps. top - 22:34:02 up 8 min, 0 users, load average: 615.32, 746.30, 929.15 Tasks: 3379 total, 3336 running, 43 sleeping, 0 stopped, 0 zombie Cpu(s): 8.8% user, 21.1% system, 10.0% nice, 56.5% idle, 3.6% IO-wait Mem: 499480k total, 414640k used, 84840k free, 1956k buffers Swap: 1020088k total, 0k used, 1020088k free, 8296k cached PID PR NI VIRT RES SHR ...

This patch add an anonymous inode source, to be used for files that need and inode only in order to create a file*. We do not care of having an inode for each file, and we do not even care of having different names in the associated dentries (dentry names will be same for classes of file*). This allow code reuse, and will be used by epoll, signalfd and timerfd (and whatever else there'll be). Signed-off-by: Davide Libenzi <davidel@xmailserver.org> - Davide Index: linux-2....

This patch introduces a new system call for timers events delivered though file descriptors. This allows timer event to be used with standard POSIX poll(2), select(2) and read(2). As a consequence of supporting the Linux f_op->poll subsystem, they can be used with epoll(2) too. The system call is defined as: int timerfd(int ufd, int clockid, int flags, const struct itimerspec *utmr); The "ufd" parameter allows for re-use (re-programming) of an existing timerfd w/out going through the close/op...

This patch series implements the new signalfd() system call. I took part of the original Linus code (and you know how badly it can be broken :), and I added even more breakage ;) Signals are fetched from the same signal queue used by the process, so signalfd will compete with standard kernel delivery in dequeue_signal(). If you want to reliably fetch signals on the signalfd file, you need to block them with sigprocmask(SIG_BLOCK). This seems to be working fine on my Dual Opteron machine. I made a qui...

This patch wire the signalfd system call to the i386 architecture. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> - Davide Index: linux-2.6.20.ep2/arch/i386/kernel/syscall_table.S =================================================================== --- linux-2.6.20.ep2.orig/arch/i386/kernel/syscall_table.S 2007-03-11 14:28:28.000000000 -0700 +++ linux-2.6.20.ep2/arch/i386/kernel/syscall_table.S 2007-03-11 14:28:44.000000000 -0700 @@ -319,3 +319,4 @@ .long sys_move_pag...

This patch wire the signalfd system call to the x86_64 architecture. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> - Davide Index: linux-2.6.20.ep2/include/asm-x86_64/unistd.h =================================================================== --- linux-2.6.20.ep2.orig/include/asm-x86_64/unistd.h 2007-03-11 14:28:28.000000000 -0700 +++ linux-2.6.20.ep2/include/asm-x86_64/unistd.h 2007-03-11 14:28:46.000000000 -0700 @@ -619,8 +619,10 @@ __SYSCALL(__NR_vmsplice, sys_vm...

[PATCH] drivers: PMC MSP71xx LED driver Patch to add LED driver for the PMC-Sierra MSP71xx devices. This patch references some platform support files previously submitted to the linux-mips@linux-mips.org list. Thanks, Marc Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com> --- Re-posting patch with recommended changes: -Cleanup on style and formatting for comments, macros, etc. -Removed unnecessary memset. -Removed unnecessary inlines. -Moved some driver private data structu...

From: Haavard Skinnemoen <hskinnemoen@atmel.com> Rip out most of the ptrace code for AVR32 and replace it with the much nicer utrace stuff. It builds in all possible combinations of CONFIG_UTRACE and CONFIG_PTRACE, and it seems to work as far as I've tested it with strace and some simple debugging with gdb. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> --- arch/avr32/kernel/entry-avr32b.S | 10 +- arch/avr32/kernel/process.c | 2 - arch/avr32/kernel/ptrace.c ...

When scanning the order sized area around the tag page we pull all pages of the matching active state; the non-matching pages are not otherwise affected. We currently count these as scanned increasing the apparent scan rates. Previously we would only count a page scanned if it was actually removed from the LRU, either then being reclaimed or rotated back onto the head of the LRU. The effect of this is to cause reclaim to terminate artificially early when the scan count is reached, reducing effe...

Would having something like: static inline int pfn_in_zone_hole(unsigned long pfn) { #ifdef CONFIG_HOLES_IN_ZONE if (unlikely(!pfn_valid(pfn))) return 1; #endif return 0; } help us out? page_is_buddy() and page_is_consistent() appear to do the exact same thing, with the same #ifdef. -- Dave -

As pointed out by Christop Lameter it should not be possible for a page to change its active/inactive state without taking the lru_lock. Reinstate this safety net. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Mel Gorman <mel@csn.ul.ie> --- diff --git a/mm/vmscan.c b/mm/vmscan.c index bda63a0..d7a0860 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -691,10 +691,13 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, nr_taken++; break; - defa...

---------- Forwarded message ---------- From: Vitaliyi <imgrey@gmail.com> Date: Mar 12, 2007 7:03 PM Subject: Re: libata extension How about soft-reset, is it possible to reach Device Control Register ? Seems not. I was thinking about patch to libata which allow to use Control Register. In the perfect case i would like to be able to execute vendor command set (reverse engineered). Is it possible to control timeouts in user space precisely enough and get rid of unnecessary kernel error me...

have it return the buffer it had allocated Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/proc/base.c | 21 ++++++--------------- include/linux/security.h | 8 ++++---- security/dummy.c | 2 +- security/selinux/hooks.c | 8 ++++++-- 4 files changed, 17 insertions(+), 22 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 4f5745a..6bbfe...

Hi. After rmmoding of uhci_hcd on fresh booted 2.6.21-rc3-mm2 I got this: BUG: atomic counter underflow at: [<c0104f0b>] show_trace_log_lvl+0x1a/0x30 [<c01055f3>] show_trace+0x12/0x14 [<c010567a>] dump_stack+0x16/0x18 [<c01dc41b>] kref_put+0x4d/0xb2 [<c01db754>] kobject_put+0x14/0x16 [<c01db8a3>] kobject_unregister+0x22/0x25 [<c024c987>] bus_remove_driver+0x75/0x82 [<c024d3b8>] driver_unregister+0xb/0x18 [<c01e7020>] pci_...