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* [PATCH] powerpc kbuild warning fixAndrew Morton2006-06-09
| | | | | | | | | | | | | | | | | From: Andrew Morton <akpm@osdl.org> arch/powerpc/Kconfig:339:warning: leading whitespace ignored arch/powerpc/Kconfig:347:warning: leading whitespace ignored arch/powerpc/Kconfig:357:warning: leading whitespace ignored arch/powerpc/Kconfig:373:warning: leading whitespace ignored arch/powerpc/Kconfig:382:warning: leading whitespace ignored arch/powerpc/Kconfig:394:warning: leading whitespace ignored arch/powerpc/Kconfig:842:warning: leading whitespace ignored arch/powerpc/Kconfig:847:warning: leading whitespace ignored Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: add num_pmcs to 970MP cputable entryAnton Blanchard2006-06-09
| | | | | | | The 970MP cputable entry needs a num_pmcs entry for oprofile to work. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: fix of_parse_dma_windowWill Schmidt2006-06-09
| | | | | | | | | | | | | | | My js20 appears to lack the ibm,#dma- properties, and boot fails with a "Kernel panic - not syncing: iommu_init_table: Can't allocate 0 bytes" message. This adds a fallback to the "#address-cells" property in case the "#ibm,dma-address-cells" property is missing. Tested on js20 and power5 lpar. Unless there is a more elegant solution... :-) Signed-off-by: Will Schmidt <willschm@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix buglet with MMU hash managementBenjamin Herrenschmidt2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | Our MMU hash management code would not set the "C" bit (changed bit) in the hardware PTE when updating a RO PTE into a RW PTE. That would cause the hardware to possibly to a write back to the hash table to set it on the first store access, which in addition to being a performance issue, might also hit a bug when running with native hash management (non-HV) as our code is specifically optimized for the case where no write back happens. Thus there is a very small therocial window were a hash PTE can become corrupted if that HPTE has just been upgraded to read write, a store access happens on it, and that races with another processor evicting that same slot. Since eviction (caused by an almost full hash) is extremely rare, the bug is very unlikely to happen fortunately. This fixes by allowing the updating of the protection bits in the native hash handling to also set (but not clear) the "C" bit, and, in order to also improve performances in the general case, by always setting that bit on newly inserted hash PTE so that writeback really never happens. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc vdso updatesBenjamin Herrenschmidt2006-06-09
| | | | | | | | | | | | This patch cleans up some locking & error handling in the ppc vdso and moves the vdso base pointer from the thread struct to the mm context where it more logically belongs. It brings the powerpc implementation closer to Ingo's new x86 one and also adds an arch_vma_name() function allowing to print [vsdo] in /proc/<pid>/maps if Ingo's x86 vdso patch is also applied. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: enable PPC_PTRACE_[GS]ETREGS on ppc32Renzo Davoli2006-06-09
| | | | | | | | | | | | | I have tested PPC_PTRACE_GETREGS and PPC_PTRACE_SETREGS on umview. I do not understand why historically these tags has been defined as PPC_PTRACE_GETREGS and PPC_PTRACE_SETREGS instead of simply PTRACE_[GS]ETREGS. The other "originality" is that the address must be put into the "addr" field instead of the "data" field as stated in the manual. Signed-off-by: renzo davoli <renzo@cs.unibo.it> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'merge'Paul Mackerras2006-06-01
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| * Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2006-05-31
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Treat R14000 like R10000. [MIPS] Remove EXPERIMENTAL from PAGE_SIZE_16KB [MIPS] Update/Fix instruction definitions [MIPS] DSP and MDMX share the same config flag bit. [MIPS] Fix deadlock on MP with cache aliases. [MIPS] Use generic STABS_DEBUG macro. [MIPS] Create consistency in "system type" selection. [MIPS] Use generic DWARF_DEBUG [MIPS] Fix kgdb exception handler from user mode. [MIPS] Update struct sigcontext member names [MIPS] Update/fix futex assembly [MIPS] Remove support for sysmips(2) SETNAME and MIPS_RDNVRAM operations. [MIPS] Fix detection and handling of the 74K processor. [MIPS] Add missing 34K processor IDs [MIPS] Fix marking buddy of pte global for MIPS32 w/36-bit physical address [MIPS] AU1xxx mips_timer_interrupt() fixes [MIPS] Fix typo
| | * [MIPS] Treat R14000 like R10000.Kumba2006-05-31
| | | | | | | | | | | | | | | Signed-off-by: Joshua Kinard <kumba@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Remove EXPERIMENTAL from PAGE_SIZE_16KBRalf Baechle2006-05-31
| | | | | | | | | | | | | | | | | | | | | This is known to be working fine for a while. While at it also update and fix the help texts. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Fix deadlock on MP with cache aliases.Ralf Baechle2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A proper fix would involve introducing the notion of shared caches but at this stage of 2.6.17 that's going to be too intrusive and not needed for current hardware; aside I think some discussion will be needed. So for now on the affected SMP configurations which happen to suffer from cache aliases we make use of the fact that a single cache will be shared by all processors. This solves the deadlock issue and will improve performance by getting rid of the smp_call_function overhead. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Use generic STABS_DEBUG macro.Atsushi Nemoto2006-05-31
| | | | | | | | | | | | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Create consistency in "system type" selection.Martin Michlmayr2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "system type" Kconfig options on MIPS are not consistent. For some platforms, only the name is listed while other entries are prepended with "Support for". Remove this as it doesn't make sense when describing the "system type". Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Use generic DWARF_DEBUGAtsushi Nemoto2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When debugging a kernel compiled by gcc 4.1 with gdb 6.4, gdb could not show filename, linenumber, etc. It seems fixed if I used generic DWARF_DEBUG macro. Although gcc 3.x seems work without this change, it would be better to use the generic macro unless there were something MIPS specific. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Fix kgdb exception handler from user mode.Atsushi Nemoto2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | Fix a calculation of saved vector address in trap_low. (damage done by lmo f4c72cc737561aab0d9c7f877abbc0a853f1c465) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Update struct sigcontext member namesDaniel Jacobowitz2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | Rename the 64-bit sc_hi and sc_lo arrays to use the same names as the 32-bit struct sigcontext (sc_mdhi, sc_hi1, et cetera). Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Remove support for sysmips(2) SETNAME and MIPS_RDNVRAM operations.Ralf Baechle2006-05-31
| | | | | | | | | | | | | | | | | | | | | SETNAME only had a minor defect but probably never had a user and MIPS_RDNVRAM was unimplemented anyway. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Fix detection and handling of the 74K processor.Chris Dearman2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | Nothing exciting; Linux just didn't know it yet so this is most adding a value to a case statement. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Add missing 34K processor IDsNigel Stephens2006-05-31
| | | | | | | | | | | | | | | | | | The 34K is very much like a 24K on steroids. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] AU1xxx mips_timer_interrupt() fixesHerbert Valerio Riedel2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | common/au1000/irq.c was missing a mips_timer_interrupt() prototype, whereas in common/au1000/time.c the actual mips_timer_interrupt() implementation was missing an irq_exit() invocation, causing a preempt_count() leak. Signed-off-by: Herbert Valerio Riedel <hvr@hvrlab.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] Fix typoRalf Baechle2006-05-31
| | | | | | | | | | | | | | | | | | Found by Chris Dearman (chris@mips.com). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | [PATCH] ARM: Fix XScale PMD settingDeepak Saxena2006-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ARM Architecture Reference Manual lists bit 4 of the PMD as "implementation defined" and it must be set to zero on Intel XScale CPUs or the cache does not behave properly. Found by Mike Rapoport while debugging a flash issue on the PXA255: http://marc.10east.com/?l=linux-arm-kernel&m=114845287600782&w=1 Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] powerpc: Fix boot on eMacBenjamin Herrenschmidt2006-05-31
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Prevent calling of some platform functions on the clock chips of the eMac as it seems to cause it to lockup at boot. For now, add a quirk to prevent that from happening. Later, I might find out what's wrong and fix it but that doesn't seem to be important as the machine appear to work fine without running those. It's possible that Darwin doesn't run them. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Nathan Pilatzke <nathanpilatzke@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] ARM: explicitly disable BTB on ixp2350Deepak Saxena2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | We don't enable the BTB on the ixp2350 as that can cause weird crashes (erratum #42.) However, some bootloaders enable the BTB, which means that we have to disable the BTB explicitly. Found thanks to Tom Rini. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * Revert "[PATCH] i386/x86_64: Force pci=noacpi on HP XW9300"Linus Torvalds2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 5491d0f3e206beb95eeb506510d62a1dab462df1. As per Andi: "After some discussion with people who have the affected system it seems best to revert for 2.6.17. It broke a common BIOS workaround and PCI-X still doesn't work. Alternative is for people to change the BIOS which seems to be better right now." Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] x86_64: Don't do syscall exit tracing twiceAndi Kleen2006-05-30
| | | | | | | | | | | | | | | | | | | | | | int_ret_from_syscall already does syscall exit tracing, so no need to do it again in the caller. This caused problems for UML and some other special programs doing syscall interception. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] x86_64: Fix off by one in bad_addr checking in find_e820_areaRobert Hentosh2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Robert Hentosh <robert_hentosh@dell.com> Actually, we just stumbled on a different bug found in find_e820_area() in e820.c. The following code does not handle the edge condition correctly: while (bad_addr(&addr, size) && addr+size < ei->addr + ei->size) ; last = addr + size; if ( last > ei->addr + ei->size ) continue; The second statement in the while loop needs to be a <= b so that it is the logical negavite of the if (a > b) outside it. It needs to read: while (bad_addr(&addr, size) && addr+size <= ei->addr + ei->size) ; In the case that failed bad_addr was returning an address that is exactly size bellow the end of the e820 range. AK: Again together with the earlier avoid edma fix this fixes boot on a Dell PE6850/16GB Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] x86_64: Handle empty node zeroDaniel Yeisley2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Daniel Yeisley <dan.yeisley@unisys.com> It is possible to boot a Unisys ES7000 with CPUs from multiple cells, and not also include the memory from those cells. This can create a scenario where node 0 has cpus, but no associated memory. The system will boot fine in a configuration where node 0 has memory, but nodes 2 and 3 do not. [AK: I rechecked the code and generic code seems to indeed handle that already. Dan's original patch had a change for mm/slab.c that seems to be already in now.] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] x86_64: fix last_tsc calculation of PM timerJan Beulich2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: "Jan Beulich" <jbeulich@novell.com> The PM timer code updates vxtime.last_tsc, but this update was done incorrectly in two ways: - offset_delay being in microseconds requires multiplying with cpu_mhz rather than cpu_khz - the multiplication of offset_delay and cpu_khz (both being 32-bit values) on most current CPUs would overflow (observed value of the delay was approximately 4000us, yielding an overflow for frequencies starting a little above 1GHz) Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] i386: apic= command line option should always beJan Beulich2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | From: "Jan Beulich" <jbeulich@novell.com> When using apic= on the kernel command line, this had no effect for machines matched by either the ACPI MADT or the MPS OEM table scan. However, when such option is specified, it should also take effect for this set of systems. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] x86_64: Fix no IOMMU warning in PCI-GART driverAndi Kleen2006-05-30
| | | | | | | | | | | | | | | | Complaining about the IOMMU not compiled in doesn't make sense here because it is clearly compiled in. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] x86_64: Fix stack/mmap randomization for compat tasksAndi Kleen2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ia32_setup_arg_pages would ignore the passed in random stack top and use its own static value. Now it uses the 8bit of randomness native i386 would use too. This indirectly fixes mmap randomization for 32bit processes too, which depends on the stack randomization. Should also give slightly better virtual cache colouring and possibly better performance with HyperThreading. Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * ppc: Fix typo in TI_LOCAL_FLAGS definitionPaul Mackerras2006-05-28
| | | | | | | | | | | | | | | | | | A typo crept in with commit ea1e847cc202e805769c3c46ba5e5c53714068a1 which defined TI_LOCAL_FLAGS to be the offset of the `flags' field of struct thread_info, rather than the `local_flags' field. This fixes it. The typo was pointed out by Guennadi Liakhovetski. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'merge' of ↵Linus Torvalds2006-05-27
| |\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [PATCH] powerpc: fix RTC/NVRAM accesses on Maple [PATCH] ppc32 CPM_UART: various fixes for pq2 uart users [PATCH] powerpc: linuxppc64.org no more
| | * [PATCH] powerpc: fix RTC/NVRAM accesses on MapleHollis Blanchard2006-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to a firmware device tree bug, RTC and NVRAM accesses (including halt/reboot) on Maple have been broken since January, when an untested build fix went in. This code patches the device tree in Linux. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [PATCH] ppc32 CPM_UART: various fixes for pq2 uart usersVitaly Bordug2006-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes various odd things that missed update together with cpm_uart platform_device move. Unified resources names, restructurisation, etc. Also, addressed issue with recent phys/virt translation rework. Being cache-coherent, CPM2's do alloc_bootmem() for the console stuff, and it was used to treat console buffer descriptor mapping 1:1 (as in CPM1 case), which is definitely wrong. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [PATCH] PowerMac: force only suspend-to-disk to be validJohannes Berg2006-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a very long time, echoing 'standby' or 'mem' into /sys/power/state has killed the machine on powerpc. This patch fixes that. This patch adds the .valid callback to pm_ops on PowerMac so that only the suspend to disk state can be entered. Note that just returning 0 would suffice since the upper layers don't pass PM_SUSPEND_DISK down, but we handle it there regardless just in case that changes. Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] x86: wire up vmsplice syscallJens Axboe2006-05-26
| |/ | | | | | | | | | | Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] s390: fix typo in stop_hz_timer.Martin Schwidefsky2006-05-25
| | | | | | | | | | | | | | | | Add missing parentheses for type cast to u64. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-05-23
| |\ | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Respect gfp_t argument to dma_alloc_coherent().
| | * [SPARC64]: Respect gfp_t argument to dma_alloc_coherent().David S. Miller2006-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using asm-generic/dma-mapping.h does not work because pushing the call down to pci_alloc_coherent() causes the gfp_t argument of dma_alloc_coherent() to be ignored. Fix this by implementing things directly, and adding a gfp_t argument we can use in the internal call down to the PCI DMA implementation of pci_alloc_coherent(). This fixes massive memory corruption when using the sound driver layer, which passes things like __GFP_COMP down into these routines and (correctly) expects that to work. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [PATCH] powerpc: wire up sys_[gs]et_robust_listDavid Woodhouse2006-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] powerpc: check Cell SPU syscall number range _before_ using itDavid Woodhouse2006-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] powerpc: fill hole in Cell SPU syscall tableDavid Woodhouse2006-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Syscall number 224 was absent from the table, which I believe means that the SPU can cause an oops by attempting to use it. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] swsusp: fix typo in cr0 handlingPavel Machek2006-05-23
| |/ | | | | | | | | | | | | | | | | | | Writing cr0 to cr2 register can't be right. This fixes the typo. I wonder how it could survive so long. Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [SPARC]: Add robust futex syscall entries.David S. Miller2006-05-22
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [PATCH] s390: next_timer_interrupt overflow in stop_hz_timerMartin Schwidefsky2006-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The 32 bit unsigned substraction (next - jiffies) in stop_hz_timer can overflow if jiffies gets advanced between next_timer_interrupt and the read under the xtime lock. The cast to a u64 then results in a large value which causes the cpu to wait too long. Fix this by casting next and jiffies independently to u64 before subtracting them. (Spotted by Zachary Amsden <zach@vmware.com>) Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] kprobes: bad manipulation of 2 byte opcode on x86_64Satoshi Oshima2006-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: If we put a probe onto a callq instruction and the probe is executed, kernel panic of Bad RIP value occurs. Root cause: If resume_execution() found 0xff at first byte of p->ainsn.insn, it must check the _second_ byte. But current resume_execution check _first_ byte again. I changed it checks second byte of p->ainsn.insn. Kprobes on i386 don't have this problem, because the implementation is a little bit different from x86_64. Cc: Andi Kleen <ak@muc.de> Signed-off-by: Satoshi Oshima <soshima@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] i386 kdump boot cpu physical apicid fixVivek Goyal2006-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o Kdump second kernel boot fails after a system crash if second kernel is UP and acpi=off and if crash occurred on a non-boot cpu. o Issue here is that MP tables report boot cpu lapic id as 0 but second kernel is booting on a different processor and MP table data is stale in this context. Hence apic_id_registered() check fails in setup_local_APIC() when called from APIC_init_uniprocessor(). o Problem is not seen if ACPI is enabled as in that case boot_cpu_physical_apicid is read from the LAPIC. o Problem is not seen with SMP kernels as well because in this case also boot_cpu_physical_apicid is read from LAPIC. (smp_boot_cpus()). o The problem is fixed by reading boot_cpu_physical_apicid from LAPIC if it is a UP kernel and CRASH_DUMP is enabled. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] build fix: CONFIG_MEMORY_HOTPLUG=y on i386KAMEZAWA Hiroyuki2006-05-21
| | | | | | | | | | | | | | | | | | typo in #ifdefs. Fixes http://bugme.osdl.org/show_bug.cgi?id=6538 Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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