aboutsummaryrefslogtreecommitdiff
path: root/arch
AgeCommit message (Collapse)Author
2006-03-14[PATCH] Plug kdump shutdown race windowManeesh Soni
lapic_shutdown() re-enables interrupts which is un-desirable for panic case, so use local_irq_save() and local_irq_restore() to keep the irqs disabled for kexec on panic case, and close a possible race window while kdump shutdown as shown in this stack trace -- BUG: spinlock lockup on CPU#1, bash/4396, c52781a0 [<c01c1870>] _raw_spin_lock+0xb7/0xd2 [<c029e148>] _spin_lock+0x6/0x8 [<c011b33f>] scheduler_tick+0xe7/0x328 [<c0128a7c>] update_process_times+0x51/0x5d [<c0114592>] smp_apic_timer_interrupt+0x4f/0x58 [<c01141ff>] lapic_shutdown+0x76/0x7e [<c0104d7c>] apic_timer_interrupt+0x1c/0x30 [<c01141ff>] lapic_shutdown+0x76/0x7e [<c0116659>] machine_crash_shutdown+0x83/0xaa [<c013cc36>] crash_kexec+0xc1/0xe3 [<c029e148>] _spin_lock+0x6/0x8 [<c013cc22>] crash_kexec+0xad/0xe3 [<c0215280>] __handle_sysrq+0x84/0xfd [<c018d937>] write_sysrq_trigger+0x2c/0x35 [<c015e47b>] vfs_write+0xa2/0x13b [<c015ea73>] sys_write+0x3b/0x64 [<c0103c69>] syscall_call+0x7/0xb Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-14Revert "[PATCH] x86-64: Fix up handling of non canonical user RIPs"Linus Torvalds
This reverts commit c33d4568aca9028a22857f94f5e0850012b6444b. Andrew Clayton and Hugh Dickins report that it's broken for them and causes strange page table and slab corruption, and spontaneous reboots. Let's get it right next time. Cc: Andrew Clayton <andrew@rootshell.co.uk> Cc: Hugh Dickins <hugh@veritas.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-12[PATCH] x86-64: Fix up handling of non canonical user RIPsAndi Kleen
EM64T CPUs have somewhat weird error reporting for non canonical RIPs in SYSRET. We can't handle any exceptions there because the exception handler would end up running on the user stack which is unsafe. To avoid problems any code that might end up with a user touched pt_regs should return using int_ret_from_syscall. int_ret_from_syscall ends up using IRET, which allows safe exceptions. Cc: Ernie Petrides <petrides@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-12Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] iwmmxt thread state alignment [ARM] 3350/1: Enable 1-wire on ARM [ARM] 3356/1: Workaround for the ARM1136 I-cache invalidation problem [ARM] 3355/1: NSLU2: remove propmt depends [ARM] 3354/1: NAS100d: fix power led handling [ARM] Fix muldi3.S
2006-03-12[ARM] iwmmxt thread state alignmentRussell King
This patch removes the reliance of iwmmxt on hand coded alignments. Since thread_info is always 8K aligned, specifying that fpstate is 8-byte aligned achieves the same effect without needing to resort to hand coded alignments. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-10Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix race in the accessed/dirty bit handlers
2006-03-10[ARM] 3350/1: Enable 1-wire on ARMAlessandro Zummo
Patch from Alessandro Zummo This patches add the 1-wire drivers to the ARM Kconfig. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-10[ARM] 3356/1: Workaround for the ARM1136 I-cache invalidation problemCatalin Marinas
Patch from Catalin Marinas ARM1136 erratum 371025 (category 2) specifies that, under rare conditions, an invalidate I-cache by MVA (line or range) operation can fail to invalidate a cache line. The recommended workaround is to either invalidate the entire I-cache or invalidate the range by set/way rather than MVA. Note that for a 16K cache size, invalidating a 4K page by set/way is equivalent to invalidating the entire I-cache. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-09[PATCH] s390: Increase spinlock retry code performanceChristian Ehrhardt
Currently the code tries up to spin_retry times to grab a lock using the cs instruction. The cs instruction has exclusive access to a memory region and therefore invalidates the appropiate cache line of all other cpus. If there is contention on a lock this leads to cache line trashing. This can be avoided if we first check wether a cs instruction is likely to succeed before the instruction gets actually executed. Signed-off-by: Christian Ehrhardt <ehrhardt@de.ibm.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>
2006-03-09[PATCH] xtensa must set RWSEM_GENERIC_SPINLOCK=yAdrian Bunk
/usr/src/ctest/git/kernel/mm/rmap.c: In function `page_referenced_one': /usr/src/ctest/git/kernel/mm/rmap.c:354: warning: implicit declaration of function `rwsem_is_locked' Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-09[PATCH] arch/sh/Kconfig: don't source non-existing Kconfig filesAdrian Bunk
arch/sh/Kconfig shouldn't source non-existing Kconfig files. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-09[PATCH] alpha: fix IRQ handling lockupIvan Kokshaysky
Fix a lockup which was introduced during the conversion to the generic IRQ framework. Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-09[MIPS] Always pass -msoft-float.Ralf Baechle
Some people still haven't heared that fp in the kernel is forbidden. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Scatter a bunch of __init over tlbex.c.Ralf Baechle
Found by make buildcheck. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Momentum: Resurrect after things were moved around a while ago.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Discard .exit.text at runtime.Ralf Baechle
At times gcc will place bits of __exit functions into .rodata. If compiled into the kernle itself we used to discard .exit.text - but not the bits left in .rodata. While harmless this did at times result in a large number of warnings. So until gcc fixes this, discard .exit.text at runtime. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Enable highmem for all MIPS32 and MIPS64 processors.Ralf Baechle
In case a particular system doesn't support highmem the runtime checks will ensure nothing bad is going to happen. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] A struct console.setup function may not be __init.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge: powerpc: Fix various syscall/signal/swapcontext bugs [PATCH] powerpc: incorrect rmo_top handling in prom_init [PATCH] powerpc: Fix incorrect pud_ERROR() message [PATCH] powerpc: Expose SMT and L1 icache snoop userland features [PATCH] powerpc: Fix windfarm_pm112 not starting all control loops [PATCH] powerpc: Fix old g5 issues with windfarm powerpc32: Fix timebase synchronization on 32-bit powermacs powerpc: Turn off verbose debug output in powermac platform functions powerpc: Fix might-sleep warning in program check exception handler
2006-03-08[PATCH] i386: port ATI timer fix from x86_64 to i386 IIAndi Kleen
ATI chipsets tend to generate double timer interrupts for the local APIC timer when both the 8254 and the IO-APIC timer pins are enabled. This is because they route it to both and the result is anded together and the CPU ends up processing it twice. This patch changes check_timer to disable the 8254 routing for interrupt 0. I think it would be safe on all chipsets actually (i tested it on a couple and it worked everywhere) and Windows seems to do it in a similar way, but to be conservative this patch only enables this mode on ATI (and adds options to enable/disable too) Ported over from a similar x86-64 change. I reused the ACPI earlyquirk infrastructure for the ATI bridge check, but tweaked it a bit to work even without ACPI. Inspired by a patch from Chuck Ebbert, but redone. Cc: Chuck Ebbert <76306.1226@compuserve.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-08[IA64] Fix race in the accessed/dirty bit handlersChristoph Lameter
A pte may be zapped by the swapper, exiting process, unmapping or page migration while the accessed or dirty bit handers are about to run. In that case the accessed bit or dirty is set on an zeroed pte which leads the VM to conclude that this is a swap pte. This may lead to - Messages from the vm like swap_free: Bad swap file entry 4000000000000000 - Processes being aborted swap_dup: Bad swap file entry 4000000000000000 VM: killing process .... Page migration is particular suitable for the creation of this race since it needs to remove and restore page table entries. The fix here is to check for the present bit and simply not update the pte if the page is not present anymore. If the page is not present then the fault handler should run next which will take care of the problem by bringing the page back and then mark the page dirty or move it onto the active list. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-08[ARM] 3355/1: NSLU2: remove propmt dependsAlessandro Zummo
Patch from Alessandro Zummo The patch that would have made the NSLU2 kernel non compatible with other ixp4xx machs never entered the kernel. So it is actually safe to remove the prompt dependencies. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-08[ARM] 3354/1: NAS100d: fix power led handlingAlessandro Zummo
Patch from Alessandro Zummo Disable GPIO clocks to allow the power led to work properly. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-08[PATCH] fix kexec asmMichael Matz
While testing kexec and kdump we hit problems where the new kernel would freeze or instantly reboot. The easiest way to trigger it was to kexec a kernel compiled for CONFIG_M586 on an athlon cpu. Compiling for CONFIG_MK7 instead would work fine. The patch fixes a few problems with the kexec inline asm. Signed-off-by: Chris Mason <mason@suse.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-08[PATCH] x86: cpu model calculation for family 6 cpuShaohua Li
The x86_model calculation also applies for family 6. early_cpu_detect does the right thing, but generic_identify misses. Signed-off-by: Shaohua Li<shaohua.li@intel.com> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: "Seth, Rohit" <rohit.seth@intel.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-08[PATCH] s390: fix strnlen_user return valueGerald Schaefer
strnlen_user is supposed to return then length count + 1 if no terminating \0 is found, and it should return 0 on exception. Found by David Howells <dhowells@redhat.com>. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-08[PATCH] x86: Fix i386 nmi_watchdog that does not trigger die_nmiGOTO Masanori
Fix i386 nmi_watchdog that does not meet watchdog timeout condition. It does not hit die_nmi when it should be triggered, because the current nmi_watchdog_tick in arch/i386/kernel/nmi.c never count up alert_counter like this: void nmi_watchdog_tick (struct pt_regs * regs) { if (last_irq_sums[cpu] == sum) { alert_counter[cpu]++; <- count up alert_counter, but if (alert_counter[cpu] == 5*nmi_hz) die_nmi(regs, "NMI Watchdog detected LOCKUP"); alert_counter[cpu] = 0; <- reset alert_counter This patch changes it back to the previous and working version. This was found and originally written by Kohta NAKASHIMA. (akpm: also uninline write_watchdog_counter(), saving 184 byets) Signed-off-by: GOTO Masanori <gotom@sanori.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-08Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] mca recovery return value when no bus check [IA64] SGI SN drivers: don't report !sn2 hardware as an error [IA64] don't report !sn2 or !summit hardware as an error [IA64] gensparse_defconfig: turn on PNPACPI [IA64] Increase severity of MCA recovery messages
2006-03-08[ARM] Fix muldi3.SRussell King
When shifting the low-parts of signed numbers, a logical shift should be used to avoid sign-extending a bit which isn't a sign bit. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-08powerpc: Fix various syscall/signal/swapcontext bugsPaul Mackerras
A careful reading of the recent changes to the system call entry/exit paths revealed several problems, plus some things that could be simplified and improved: * 32-bit wasn't testing the _TIF_NOERROR bit in the syscall fast exit path, so it was only doing anything with it once it saw some other bit being set. In other words, the noerror behaviour would apply to the next system call where we had to reschedule or deliver a signal, which is not necessarily the current system call. * 32-bit wasn't doing the call to ptrace_notify in the syscall exit path when the _TIF_SINGLESTEP bit was set. * _TIF_RESTOREALL was in both _TIF_USER_WORK_MASK and _TIF_PERSYSCALL_MASK, which is odd since _TIF_RESTOREALL is only set by system calls. I took it out of _TIF_USER_WORK_MASK. * On 64-bit, _TIF_RESTOREALL wasn't causing the non-volatile registers to be restored (unless perhaps a signal was delivered or the syscall was traced or single-stepped). Thus the non-volatile registers weren't restored on exit from a signal handler. We probably got away with it mostly because signal handlers written in C wouldn't alter the non-volatile registers. * On 32-bit I simplified the code and made it more like 64-bit by making the syscall exit path jump to ret_from_except to handle preemption and signal delivery. * 32-bit was calling do_signal unnecessarily when _TIF_RESTOREALL was set - but I think because of that 32-bit was actually restoring the non-volatile registers on exit from a signal handler. * I changed the order of enabling interrupts and saving the non-volatile registers before calling do_syscall_trace_leave; now we enable interrupts first. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-07[IA64] mca recovery return value when no bus checkRuss Anderson
When there is no bus check, the return code should be failure, not success. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-07[IA64] don't report !sn2 or !summit hardware as an errorBjorn Helgaas
This stuff is all in the generic ia64 kernel, and the new initcall error reporting complains about them. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-07[IA64] gensparse_defconfig: turn on PNPACPIBjorn Helgaas
Turn on CONFIG_PNPACPI. I recently removed 8250_acpi.c. All devices previously claimed by 8250_acpi.c should now be claimed by 8250_pnp.c. This depends on having CONFIG_PNPACPI so ACPI devices show up as PNP devices. All other ia64 defconfigs either have CONFIG_PNPACPI already, or don't have 8250 support turned on at all. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-07[IA64] Increase severity of MCA recovery messagesRuss Anderson
The MCA recovery messages are currently KERN_DEBUG, so they don't show up in /var/log/messages (by default). Increase the severity to KERN_ERR, for the initial message (and also add the physical address to this message). Leave the successful isolation message as KERN_DEBUG, but increase the severity when isolation fails to KERN_CRIT. [Russ' patch made these all KERN_CRIT] Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-07[ARM] 3353/1: NAS100d: protect nas100d_power_exit() with machine_is_nas100d()Alessandro Zummo
Patch from Alessandro Zummo nas100d_power_exit(void) gets some protection to avoid freeing an irq when it is not appropriate to do so. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-07[ARM] 3352/1: DSB required for the completion of a TLB maintenance operationCatalin Marinas
Patch from Catalin Marinas Chapter B2.7.3 in the latest ARM ARM (with v6 information) states that the completion of a TLB maintenance operation is only guaranteed by the execution of a DSB (Data Syncronization Barrier, formerly Data Write Barrier or Drain Write Buffer). Note that a DSB is only needed in the flush_tlb_kernel_* functions since the completion is guaranteed by a mode change (i.e. switching back to user mode) for the flush_tlb_user_* functions. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-06[PATCH] EFI: Fix gdt loadEdgar Hucek
This patch makes the kernel bootable again on ia32 EFI systems. Signed-off-by: Edgar Hucek <hostmaster@ed-soft.at> Cc: Matt Domsch <Matt_Domsch@dell.com> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-06[PATCH] add missing pm_power_off'sAdrian Bunk
Add the missing pm_power_off's for the h8300, v850 and xtensa architectures. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-06[PATCH] fix next_timer_interrupt() for hrtimerTony Lindgren
Also from Thomas Gleixner <tglx@linutronix.de> Function next_timer_interrupt() got broken with a recent patch 6ba1b91213e81aa92b5cf7539f7d2a94ff54947c as sys_nanosleep() was moved to hrtimer. This broke things as next_timer_interrupt() did not check hrtimer tree for next event. Function next_timer_interrupt() is needed with dyntick (CONFIG_NO_IDLE_HZ, VST) implementations, as the system can be in idle when next hrtimer event was supposed to happen. At least ARM and S390 currently use next_timer_interrupt(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-06[PATCH] x86: fix potential jiffies overflow in timer_resume()Atsushi Nemoto
i386 timer_resume is updating jiffies, not jiffies_64. It looks there is a potential overflow problem. And jiffies_64 and wall_jiffies should be protected by xtime_lock. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-04[SPARC64]: Mark __ex_table section correctly.David S. Miller
We must use the "a" (allocate) attribute every time we emit an entry into the __ex_table section. For consistency, use "a" instead of #alloc which is some Solaris compat cruft GNU as provides on Sparc. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-04ppc64: make sure to align stack pointer to 16 bytes at bootLinus Torvalds
yaboot is scrogged and calls us with an invalid stack alignment, it seems. Thanks to David Woodhouse to pointing me to the problem. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-03[PATCH] powerpc: incorrect rmo_top handling in prom_initBenjamin Herrenschmidt
On Thu, 2006-03-02 at 19:55 +0100, Olaf Hering wrote: > My iBook1 has 2 memory regions in reg. Depending on how I boot it > (vmlinux+initrd) or zImage.initrd, it will not boot with current Linus > tree. > rmo_top should be 160MB instead of 32MB. On logically-partitioned machines the first element of the reg property in the memory node is defined to be the "RMO" region, i.e. the memory that the processor can access in real mode. On other machines the first element has no special meaning, so only take it to be the RMO region on LPAR machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-03[PATCH] powerpc: Expose SMT and L1 icache snoop userland featuresBenjamin Herrenschmidt
This patch makes userland aware of the icache snoop capability of the POWER5 (and possibly others in the future) and of SMT capabilities. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-03powerpc32: Fix timebase synchronization on 32-bit powermacsPaul Mackerras
The variable `timebase' used to transfer the current timebase value from one cpu to the other in smp_core99_give/take_timebase was only an unsigned long, i.e. 32 bits on 32-bit machines. It needs to be 64 bits. This makes it a u64, and fixes the issue reported by Kyle Moffett, that the two cpus see wildly different values for the time of day. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-03powerpc: Turn off verbose debug output in powermac platform functionsPaul Mackerras
This is along the lines suggested by Chris Lumens but goes further in that it leaves the DEBUG symbol undefined, making the DBG macro empty. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-03powerpc: Fix might-sleep warning in program check exception handlerPaul Mackerras
On 32-bit, the exception prolog for the program check exception doesn't enable interrupts early on. If it is an illegal instruction exception, we read the instruction in order to emulate certain instructions, and the get_user of the instruction triggers a WARN_ON since interrupts are still disabled. This adds a local_irq_enable() to enable interrupts before reading the instruction. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-01[MIPS] Use USECS_PER_SEC / HZ instead of tick_usec in do_gettimeofday.Atsushi Nemoto
The 'tick_usec' is USER_HZ period in usec. do_gettimeofday() should use kernel HZ value. Here is a patch for MIPS. It seems m32r, m68k and sparc have same problem though their HZ and USER_HZ are same for now. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-28Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2006-02-28[PATCH] Add mm->task_size and fix powerpc vdsoBenjamin Herrenschmidt
This patch adds mm->task_size to keep track of the task size of a given mm and uses that to fix the powerpc vdso so that it uses the mm task size to decide what pages to fault in instead of the current thread flags (which broke when ptracing). (akpm: I expect that mm_struct.task_size will become the way in which we finally sort out the confusion between 32-bit processes and 32-bit mm's. It may need tweaks, but at this stage this patch is powerpc-only.) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>