With CONFIG_FAIR_CGROUP_SCHED=y, following commands on 2.6.24-rc1 crash the system. $ mount -t cgroup none /cgroups $ ./ns_exec -cm /bin/ls "ns_exec -cm" calls clone() to clone the mount namespace and then executes the '/bin/ls' program in the cloned child. Some observations that Serge and I made (we have been able to reproduce reliably, but crash logs have not been very useful) a. If we skip the 'mount' command, there is no crash. b. If CONFIG_FAIR_CGROUP_SCHED=n again, there is ...

Variables that are only used in #ifdef CONFIG_X86 should also only be declared there. Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de> --- drivers/video/uvesafb.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index b983d26..d1d6c0f 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -926,8 +926,10 @@ static int uvesafb_setpalette(struct uvesafb_pal_entry *entries, int count, int...

With 2.6.24-rc2 on my Lenovo X60s, I sometimes get: hda_intel: No response from codec, disabling MSI: last cmd=0x002f0d00 hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0x002f0d00 when loading snd_hda_intel. Sound still works but interrupts aren't generated. I tried bisecting but I haven't gotten good info yet because it seems that this is not completely reproducible -- sometimes when I load the module, it works fine, and other times I get the message. I thi...

Sorry for the broken patch. Hope it's OK now. The pf driver for parallel port floppy drives seems to be broken. At least with Imation SuperDisk with EPAT chip, the driver calls pi_connect() and pi_disconnect after each transferred sector. At least with EPAT, this operation is very expensive - causes drive recalibration. Thus, transferring even a single byte (dd if=/dev/pf0 of=/dev/null bs=1 count=1) takes 20 seconds, making the driver useless. The pf_next_buf() function seems to be broken as it...

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This is the host part of kvm clocksource implementation. As it does not include clockevents, it is a fairly simple implementation. We only have to register a per-vcpu area, and start writting to it periodically. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> --- drivers/kvm/kvm_main.c | 1 + drivers/kvm/x86.c | 32 ++++++++++++++++++++++++++++++++ drivers/kvm/x86.h | 4 ++++ 3 files changed, 37 insertions(+), 0 deletions(-) diff --git a/drivers/kvm/kvm_mai...

Hello all, I was looking at CIFS VFS code recently, trying to solve other issue, just to find something that looks like a buffer overflow bug. The problem is in SendReceive() function in transport.c - it memcpy's message payload into a buffer passed via out_buf param. The function assumes that all buffers are of size (CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) , unfortunately it is also called with smaller (MAX_CIFS_SMALL_BUFFER_SIZE) buffers. To check this finding I patched Samba server to send overs...

re-sent due to a typo in addressing. AppArmor Security Goal Crispin Cowan, PhD MercenaryLinux.com This document is intended to specify the security goal that AppArmor is intended to achieve, so that users can evaluate whether AppArmor will meet their needs, and kernel developers can evaluate whether AppArmor is living up to its claims. This document is *not* a general purpose explanation of how AppArmor works, nor is it an explanation for why one might want to use AppArmor rather than some othe...

CLONE_STOPPED was previously used by some NTPL versions when under thread_db (i.e. only when being actively debugged by gdb), but not for a long time now, and it never worked reliably when it was used. Removing it seems fine to me. Thanks, Roland -

We have plent macros that look like regular functions. And as a primary interface to this functionality these shouting things look really out of place. -

One point of the patchset is to clean up the messy handling of the allocpercpu interface which uses lower case for macros. It is a bit confusing that a function like alloc_percpu() can take a type argument. I think this needs to be uppercase for clarity. -

I looked into getting rid of the interrupt enable/disable when updating vm statistics in vmstat.c. The SLUB removal of the interrupt enable/disable doubled the performance of the fast path so maybe we can do the same to vm statistics. Measurements were done on an 8p SMP system (dual quad core Intel Xeon) Some numbers: inc_zone_page_state Includes interrupt enable/disable __dec_zone_page_state Does not perform interrupt enable/disable count_vm_event Simple increment with preempt disable/ena...

Replace the push flags ; popf with test $IFMASK,flags ; jz 1f; sti ; 1: That will likely make it much faster (but also bigger) The only problem is that there might be some code who relies on restore_flags() restoring other flags that IF, but at least for interrupts and local_irq_save/restore it should be fine to change. -Andi -

Are your out of service equipment being disposed of properly? Millennium Information Technologies follows EPA guidelines for recycling and disposal of all hardware. We are interested in purchasing surplus or corporate owned technology that is no longer in service or is scheduled to be de-installed anytime in the near future. Millennium buys all types of technology including networking hardware, PC's, printers, phones, PBX's, scanners, laptops, servers, and more in large volume. We can help offse...

Avi has already posted a patch to correct this. http://lkml.org/lkml/2007/10/24/95 Laurent

These warnings can not go away until these functions can go away entirely. Hopefully that will happen soon, but there are still drivers using these old functions :( thanks, greg k-h -

(Sorry for not reporting this sooner - I haven't been running off battery much in the last 3 weeks, so I didn't notice it till now...) Dell Latitude D820 laptop, T7200 Core2 Duo CPU, x86_64 kernel. As reported by 'powertop' on a basically idle machine: 2.6.23-mm1: Cn Avg residency P-states (frequencies) C0 (cpu running) (100.0%) 2.00 Ghz 0.8% C1 0.0ms ( 0.0%) 1.67 Ghz 0.0% C2 0.0ms ( 0.0%) 1333 Mhz 0...

yipes! I'll look at it right away. It looks like an integration issue with CPU-IDLE patches (those control the C-state entry). I'll get it you won't have such a process (at least I highly doubt you do) I need to fix this. Thanks for taking the time to bisect it and reporting it to me! --mgross -

Ah, I see the problem. I think I posted a fix to this. The problem is that what's in the mm1 tree has a parameter PM_QOS_IDLE that needed to be PM_QOS_CPU_DMA_LATENCY. I'm not sure what's in the current MM tree at this point so I can't say its been fixed. Is there an easy way from me to see what's currently in MM? FWIW I think I fixed this when I fixed up Rafael's issue. Would you like me to send out a re-fresh patch against 2.6.23-mm1? --mgross -

These patches add the MEI/Panasonic MN10300/AM33 architecture to the Linux kernel. The first patch suppresses A.OUT support in the kernel if CONFIG_BINFMT_AOUT=n and CONFIG_IA32_AOUT=n and CONFIG_BINFMT_AOUT32=n. MN10300 does not support the AOUT binfmt, so the ELF binfmt should not be permitted to go looking for AOUT libraries to load, nor should random bits of the kernel depend on asm/a.out.h. The fifth patch adds the architecture itself, to be selected by ARCH=mn10300 on the make command...

That makes sense if I'm not calculating UNIT or PROCESSOR anyway. However, No. I think all the arch headers should really appear to be #included under asm/. That means that the structure would have to be: include/asm-mn10300/asb2303/asm/proc/*.h That then puts all these header files several levels further down, which isn't That's the only plus, but it's a smaller plus than not interpolating several levels of almost empty directory into the paths for the proc- and unit-specific I cou...

I'll consult MEI as to what boilerplate copyright messages I should plaster on such files. David -

Add MTD flash support for the ASB2303 board. Signed-off-by: David Howells <dhowells@redhat.com> --- arch/mn10300/configs/asb2303_defconfig | 1 drivers/mtd/chips/jedec_probe.c | 2 drivers/mtd/maps/Kconfig | 8 + drivers/mtd/maps/Makefile | 1 drivers/mtd/maps/asb2303-flash.c | 184 ++++++++++++++++++++++++++++++++ 5 files changed, 196 insertions(+), 0 deletions(-) diff --git a/arch/mn10300/configs/asb2303_defconfig b/arch/mn10300...

net2280 can't have a function called show_registers() because this can produce a namespace clash with an arch function of the same name. All this driver's functions and variables should really be prefixed with "net2280_" to avoid such a problem in future. Signed-off-by: David Howells <dhowells@redhat.com> --- drivers/usb/gadget/net2280.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index d5d473f...

From: Matti Linnanvuori <mattilinnanvuori@yahoo.com> Fix and elaborate comments. Signed-off-by: Matti Linnanvuori <mattilinnanvuori@yahoo.com> --- --- a/kernel/module.c 2007-11-08 18:21:18.762437500 +0200 +++ b/kernel/module.c 2007-11-08 18:25:57.961364500 +0200 @@ -81,7 +81,8 @@ int unregister_module_notifier(struct no } EXPORT_SYMBOL(unregister_module_notifier); -/* We require a truly strong try_module_get() */ +/* We require a truly strong try_module_get(): 0 means ...