- 02 Aug, 2004 34 commits
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Michael Kerrisk authored
There is a lonstanding off-by-one error that results from an incorrect comparison when checking whether a process has consumed CPU time in excess of its RLIMIT_CPU limits. This means, for example, that if we use setrlimit() to set the soft CPU limit (rlim_cur) to 5 seconds and the hard limit (rlim_max) to 10 seconds, then the process only receives a SIGXCPU signal after consuming 6 seconds of CPU time, and, if it continues consuming CPU after handling that signal, only receives SIGKILL after consuming 11 seconds of CPU time. The fix is trivial. Signed-off-by:Linus Torvalds <torvalds@osdl.org>
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Armin Schindler authored
Author: Armin Schindler, Nishanth Aravamudan Use kernel provided msleep() instead of own sleep implementation. Signed-off-by: -
Jens Axboe authored
There's a stupid error in the fall back logic, it fails to increment the user pointer so the wave file is corrupt. We should also clear last_sense just to be sure. Signed-off-by:
Jens Axboe <axboe@suse.de> Signed-off-by:
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Steve Dickson authored
Here are some oops I found in error paths in the mounting pathes while debugging something else... I sent it out a while ago, but it didn't seem to get any traction.... The nfs_fill_super() fix is obvious and in nfs4_fill_super(), the server->client ptr needs to be set before the cl_idmap check, since rpc_shutdown_client() needs it when the check fails. Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Brian Gerst authored
Remove the unused symbol_is() macro. Signed-off-by:
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Adrian Bunk authored
Below is a patch by Hans Ulrich Niedermann <linux-kernel@n-dimensional.de> to change all references in comments to files in Documentation/ to start with Documentation/ Signed-off-by:
Adrian Bunk <bunk@fs.tum.de> Signed-off-by:
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Adrian Bunk authored
This file does not exist in 2.6. Signed-off-by:
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Bjorn Helgaas authored
This patch - adds copyright and license info - changes sense of mmap config option (setting option enables mmap instead of disabling it, to avoid the double negative) - removes an #ifdef CONFIG_IA64 now that acpi_register_gsi() is generic. Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by:
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Andi Kleen authored
Sync nmi_watchdog.txt with reality on x86-64. Signed-off-by:
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Arnd Bergmann authored
Actually, the problem has its origin in my removal of all in-kernel syscalls (except execve, which is non-trivial) earlier this year. This change was blindly reverted by the maintainer, while at the same time the local errno variable was removed. See also http://linux.bkbits.net:8080/linux-2.5/hist/drivers/media/dvb/frontends/tda= 1004x.c This patch is the one that was already merged earlier. I'm now also removing the definitions for the kernel syscalls on i386 to make it harder to reintroduce them again. This was already done for ppc64, the others should probably follow. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Paul Mackerras authored
Tom is looking after PPC8xx and the PPC boot code. Signed-off-by:
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Christoph Hellwig authored
Signed-off-by:
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Christoph Hellwig authored
ACKed by the pmac folks a while ago. Also moves the Kconfig entry to where it belongs. Signed-off-by:
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Alan Cox authored
Revert the recent fdomain_cs config dependency "fix" and fix the linkage error with ifdeffery instead. Signed-off-by:
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Maciej W. Rozycki authored
Maciej has moved. Signed-off-by:
Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by:
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Bjorn Helgaas authored
The "vector" terminology is architecture-dependent. The PCI MSI interface actually deals with Linux IRQ numbers (i.e., things you can pass to request_irq()), and we shouldn't confuse things by calling them "vectors" just because we're using MSI rather than an IOSAPIC. Signed-off-by:
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Roland Dreier authored
Second half of MSI rewrite: fix the API and update documentation. Split enabling MSI and MSI-X to separate pci_enable_msi()/pci_disable_msi() and pci_enable_msix()/pci_disable_msix() functions. free_irq() no longer has the side effect of freeing interrupt vectors (so a device driver can do multiple request_irq()/free_irq() cycles on the same MSI/MSI_X vector). From: Tom L. Nguyen <tom.l.nguyen@intel.com> Signed-off-by:
Roland Dreier <roland@topspin.com> Signed-off-by:
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Roland Dreier authored
First half of the MSI rewrite: pure cleanup. Use proper pci_read_config_xxx() and pci_write_config_xxx() functions instead of accessing raw dev->bus->ops. Signed-off-by:
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Jesse Barnes authored
On a system with a lot of nodes, 4 lines of output per node is a lot to have to sit through as the system comes up, especially if you're on the other end of a slow serial link. The information is valuable though, so keep it around for the system logger. This patch makes the printks for the memory stats use KERN_DEBUG instead of the default loglevel. Signed-off-by:
Jesse Barnes <jbarnes@sgi.com> Signed-off-by:
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Alexey Dobriyan authored
Fix menuconfig inability to show help texts when there is menu item with letter "H" highlighted on the screen. Signed-off-by:
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Andrew Morton authored
Change the oom-killer so that it spits a sysrq-m output into the logs, and shows the gfp_mask of the failing allocation attempt. Signed-off-by:
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Kumar Gala authored
The following patch adds completes the CPU support for the MPC8555 PowerPC. Additionally, it adds support for the MPC8555 CDS reference board. This is another PowerPC in the Freescale MPC85xx family. * Add support for MPC8555 CPU and reference board Signed-off-by:
Kumar Gala <kumar.gala@freescale.com> Signed-off-by:
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Kumar Gala authored
The following patch adds completes the CPU support for the MPC8560 PowerPC. Additionally, it adds support for the MPC8560 ADS reference board and fixes up some build issues with the SBC8560 board. Signed-off-by:
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David Gibson authored
This patch removes a redundant #include of processor.h from arch/ppc64/boot/div64.S. I came across this because, at least with the binutils versions I have currently installed, the 32-bit assembler used for the bootstrap code objects to the // comments that recently went into processor.h. Signed-off-by:
David Gibson <dwg@au.ibm.com> Signed-off-by:
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Paul Mackerras authored
Rewrite/cleanup of the SLB management code. This removes nearly all the SLB related code from arch/ppc64/kernel/stab.c and puts a rewritten version in arch/ppc64/mm, where it better belongs. The main SLB miss path is in assembler and the other routines have been cleaned up and streamlined. Notable changes: - Ugly bitfields no longer used for generating SLB entries. - slb_allocate() (the main SLB miss routine) is now in assembler, and all the data it uses is stored in the PACA. - The mm context is now copied into the PACA at context switch time, to avoid looking up the thread struct on SLB miss. - An SLB miss will now never (directly) result in a call to do_page_fault. If we get a miss on a totally bogus address the handler will now put in an SLB referencing VSID 0. This will never have any pages, so we'll get the (fatal) page fault shortly afterwards. This simplifies the SLB entry and exit paths. - The round-robin pointer in the PACA now references the last-used instead of next-to-use SLB slot, which simplifies the asm for updating it slightly. - Unify do_slb_bolted with the general SLB miss path. There is now one SLB miss handler, in assembler, and called with only the low-level exception prolog (EXCEPTION_PROLOG_[PI]SERIES rather than EXCEPTION_PROLOG_COMMON) and minimal extra save/restore logic. - Streamlines the exception entry/exit path of the SLB miss handler to shave a few cycles off. The most significant change is that the RI bit is left off throughout the whole handler, which avoids an extra mtmsrd to turn it back off on the exit path. Signed-off-by:
David Gibson <david@gibson.dropbear.id.au> Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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Srivatsa Vaddagiri authored
Patch below fixes a cpu_up race in PPC64. Signed-off-by:
Srivatsa Vaddagiri <vatsa@in.ibm.com> Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Anton Blanchard authored
In migrate_irqs_away we werent converting a virtual irq to a real one. We ended up passing the wrong irq numbers to the hypervisor and migration of affinitised irqs on cpu hot unplug didnt work. Also clarify the rtas_stop_self printk. Signed-off-by:
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David Gibson authored
Both arch/ppc64/kernel/ras.c and arch/ppc64/kernel/rtasd.c have a spinlock variable declared static called "log_lock". Since the code in these files interact quit a lot, having two different locks with identical names is manifestly confusing. This patch renames both locks to something a little clearer. In the case of ras.c it also renames the buffer protected by the lock to a more usefullly greppable name. Signed-off-by:
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Paul Mackerras authored
Moves a misplaced of_node_put(). In the existing code, the node in question is used just after its refcount is decremented. Signed-off-by:
John Rose <johnrose@austin.ibm.com> Signed-off-by:
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John Rose authored
The patch below removes the unused member "pci_io_offset" from struct pci_controller. If there are no problems, please apply. Signed-off-by:
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Dave Hansen authored
lmb_end_of_DRAM() returns the address of the end of RAM, not the starting address of the last page. We've been accessing mem_map[] out of bounds for quite a while. But, it's just a read, so it's probably never caused a real problem. But, during my port of CONFIG_NONLINEAR to ppc64, I have a check to make sure that all __va() calls are given with valid physical addresses. This code tripped that check. Signed-off-by:
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Dave Hansen authored
arch/ppc64/kernel/prom.c: In function `__make_room': arch/ppc64/kernel/prom.c:1415: warning: unused variable `offset' Signed-off-by:
Dave Hansen <haveblue@us.ibm.com> Signed-off-by:
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Tim Schmielau authored
BSD accounting cross-platform compatibility is a new feature of 2.6.8 and thus not crucial, but it'd be nice not to have kernels writing wrong file formats out in the wild. The endianness detection logic I wanted to suppose for userspace turned out to be bogus. So just do it the simple way and store endianness info together with the version number. Signed-off-by:
Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by:
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Anton Blanchard authored
The per cpu schedule counters need to be summed up over all possible cpus. When testing hotplug cpu remove I saw the sum of the online cpu count for nr_uninterruptible go negative which made the load average go nuts. Signed-off-by:
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- 01 Aug, 2004 6 commits
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Benjamin Herrenschmidt authored
The latest versions of Motorola erratas for the MPC745x CPUs (and 744x) adds a couple of nasty ones for which we really want workarounds in the kernel. One is to disable the BTIC branch target cache on some revs (too bad for performances...) and the other one is to force cacheable memory pages to always be marked as SMP coherent even on UP systems (I didn't measure significant perfs impact with this one). Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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bk://kernel.bkbits.net/davem/tg3-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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David S. Miller authored
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bk://gkernel.bkbits.net/net-drivers-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Chris Wright authored
If regs.len is smaller than reglen it's possible to copy more bytes out than the user asked for. Signed-off-by:Chris Wright <chrisw@osdl.org>
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bk://kernel.bkbits.net/davem/net-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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