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2007-04-06[IA64] Fix CPU freq displayed in /proc/cpuinfoVenki Pallipadi1-1/+1
My patch: git commit=95235ca2c20ac0b31a8eb39e2d599bcc3e9c9a10 introduced a bug in IA64 cpuinfo output. Patch changed the proc_freq from 1HZ resolution to 1KHz resolution, but left format string unchanged at " %lu.%06lu". Below is the fix. Thanks to Bjorn for catching this. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-04-06[IA64] Fix wrong assumption about irq and vector in msi_ia64.cIshimatsu Yasuaki1-2/+2
This patch fixes a wrong assumption in ia64 MSI code that IRQ equals vector. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-29[IA64] Speed up boot - skip unnecessary clock calibrationJack Steiner1-1/+16
Skip clock calibration if cpu being brought online is exactly the same speed, stepping, etc., as the previous cpu. This significantly reduces the time to boot very large systems. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-29[IA64] Fix possible invalid memory access in ia64_setup_msi_irq()Kenji Kaneshige1-1/+1
The following 'if' statement in ia64_setup_msi_irq() always fails even if create_irq() returns <0 value, because variable 'irq' is defined as unsigned int. It would cause invalid memory access. irq = create_irq(); if (irq < 0) return irq; Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-20[IA64] Fix typo/thinko in crash.cJay Lan1-1/+1
Clearly should be checking for "val == DIE_INIT_SLAVE_ENTER". Signed-off-by: Jay Lan <jlan@sgi.com> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-20[IA64] Fix get_model_name() for mixed cpu type systemsJack Steiner1-7/+15
If a system consists of mixed processor types, kmalloc() can be called before the per-cpu data page is initialized. If the slab contains sufficient memory, then kmalloc() works ok. However, if the slabs are empty, slab calls the memory allocator. This requires per-cpu data (NODE_DATA()) & the cpu dies. Also noted by Russ Anderson who had a very similar patch. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-08[IA64] put kdump_find_rsvd_region in __initHorms1-1/+1
kdump_find_rsvd_region() is only called by reserve_memory() which is in __init, so it seems that kdump_find_rsvd_region() should also be in there. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-08[IA64] add missing syscall trace clearAkiyama, Nobuyuki1-0/+1
The ptrace misses clearing the syscall trace flag. The increased syscall overhead is retained after the trace is finished. This case happens when strace is terminated by force. Signed-off-by: Akiyama, Nobuyuki <akiyama.nobuyuk@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-08[IA64] Cleanup in crash.cSimon Horman1-5/+5
Grammatical fixes (s/freezed/frozen/) Make some variables static Change a C++ "//" comment to "/* ... */" Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-08[IA64] Cache error recoveryRuss Anderson1-21/+11
Similar to memory error recovery, when a cache error is consumed by a user process terminate the user instead of crashing the system. Signed-off-by: Russ Anderson (rja@sgi.com) Acked-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-08[IA64] Proper handling of TLB errors from duplicate itr.d dropinsRuss Anderson2-6/+35
Jack Steiner noticed that duplicate TLB DTC entries do not cause a linux panic. See discussion: http://www.gelato.unsw.edu.au/archives/linux-ia64/0307/6108.html The current TLB recovery code is recovering from the duplicate itr.d dropins, masking the underlying problem. This change modifies the MCA recovery code to look for the TLB check signature of the duplicate TLB entry and panic in that case. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-07[IA64] fsys_getcpu for IA64Fenghua Yu2-0/+106
On 1.6GHz Montectio Tiger4, the following performance data is measured with kernel built with defconfig which has NUMA configured: Fastest sys_getcpu: 502 itc counts. Fastest fsys_getcpu: 28 itc counts. fsys_getcpu performance is largly impacted by whether data (node_to_cpu_map etc) is in cache. It can take fsys_getcpu up to ~150 itc counts in cold cache case. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-07[IA64] remove duplicate declaration of efi_initialize_iomem_resourcesHorms1-2/+0
efi_initialize_iomem_resources() is declared in both include/linux/efi.h and arch/ia64/kernel/setup.c. This patch removes the latter. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-07[IA64] Pick highest possible saved_max_pfn for crash_dumpTony Luck1-5/+5
Berhhard Walle noted that on his HP rx8640 he ended up with saved_max_pfn smaller than the highest address of system ram in /proc/iomem and proposed a patch to base the address on the unrounded and unfiltered EFI memory map address. Simon Horman and Magnus Damm suggested that the whole test be moved earlier in the function. This is the combination of both of these patches. Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-07[IA64] fix NULL pointer in ia64/irq_chip-mask/unmask functionKAMEZAWA Hiroyuki1-2/+6
This patch fixes boot failure because irq_desc->mask() is NULL. - Added mask/unmask functions to ia64's irq desc function table. - rename hw_interrupt_type to irq_chip. hw_interrupt_type is old name. - Tony: Added same change to arch/ia64/sn/kernel/irq.c as pointed out by Eric Biederman ... mask/unmask functions there can be no-op. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-06[IA64] kexec: Use EFI_LOADER_DATA for ELF core headerMagnus Damm2-0/+60
The address where the ELF core header is stored is passed to the secondary kernel as a kernel command line option. The memory area for this header is also marked as a separate EFI memory descriptor on ia64. The separate EFI memory descriptor is at the moment of the type EFI_UNUSABLE_MEMORY. With such a type the secondary kernel skips over the entire memory granule (config option, 16M or 64M) when detecting memory. If we are lucky we will just lose some memory, but if we happen to have data in the same granule (such as an initramfs image), then this data will never get mapped and the kernel bombs out when trying to access it. So this is an attempt to fix this by changing the EFI memory descriptor type into EFI_LOADER_DATA. This type is the same type used for the kernel data and for initramfs. In the secondary kernel we then handle the ELF core header data the same way as we handle the initramfs image. This patch contains the kernel changes to make this happen. Pretty straightforward, we reserve the area in reserve_memory(). The address for the area comes from the kernel command line and the size comes from the specialized EFI parsing function vmcore_find_descriptor_size(). The kexec-tools-testing code for this can be found here: http://lists.osdl.org/pipermail/fastboot/2007-February/005983.html Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Cc: Simon Horman <horms@verge.net.au> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-06[IA64] permon use-after-free fixNick Piggin1-4/+7
Perfmon associates vmalloc()ed memory with a file descriptor, and installs a vma mapping that memory. Unfortunately, the vm_file field is not filled in, so processes with mappings to that memory do not prevent the file from being closed and the memory freed. This results in use-after-free bugs and multiple freeing of pages, etc. I saw this bug on an Altix on SLES9. Haven't reproduced upstream but it looks like the same issue is there. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-06[IA64] point saved_max_pfn to the max_pfn of the entire systemHorms1-0/+6
Make saved_max_pfn point to max_pfn of entire system. Without this patch is so that vmcore is zero length on ia64. This is because saved_max_pfn was wrongly being set to the max_pfn of the crash kernel's address space, rather than the max_pfg on the physical memory of the machine - the whole purpose of vmcore is to access physical memory that is not part of the crash kernel's addresss space. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> Sort-Of-Acked-By: Jay Lan <jlan@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-26[PATCH] irq: Remove set_native_irq_infoEric W. Biederman1-1/+1
This patch replaces all instances of "set_native_irq_info(irq, mask)" with "irq_desc[irq].affinity = mask". The latter form is clearer uses fewer abstractions, and makes access to this field uniform accross different architectures. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds1-1/+1
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits) Documentation/kernel-docs.txt update. arch/cris: typo in KERN_INFO Storage class should be before const qualifier kernel/printk.c: comment fix update I/O sched Kconfig help texts - CFQ is now default, not AS. Remove duplicate listing of Cris arch from README kbuild: more doc. cleanups doc: make doc. for maxcpus= more visible drivers/net/eexpress.c: remove duplicate comment add a help text for BLK_DEV_GENERIC correct a dead URL in the IP_MULTICAST help text fix the BAYCOM_SER_HDX help text fix SCSI_SCAN_ASYNC help text trivial documentation patch for platform.txt Fix typos concerning hierarchy Fix comment typo "spin_lock_irqrestore". Fix misspellings of "agressive". drivers/scsi/a100u2w.c: trivial typo patch Correct trivial typo in log2.h. Remove useless FIND_FIRST_BIT() macro from cardbus.c. ...
2007-02-17Fix comment typo "spin_lock_irqrestore".Robert P. J. Day1-1/+1
Fix "spin_lock_irqrestore" to "spin_unlock_irqrestore." Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-16Pull fluff into release branchLen Brown1-2/+2
Conflicts: arch/x86_64/pci/mmconfig.c drivers/acpi/bay.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: IA64: react to acpi_table_parse() return value changeJohn Keller1-2/+2
acpi_boot_init() is making a bad check on the return status from acpi_table_parse(). acpi_table_parse() now returns zero on success, one on failure. Signed-off-by: Aaron Young <ayoung@sgi.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-14[PATCH] sysctl: remove insert_at_head from register_sysctlEric W. Biederman2-2/+2
The semantic effect of insert_at_head is that it would allow new registered sysctl entries to override existing sysctl entries of the same name. Which is pain for caching and the proc interface never implemented. I have done an audit and discovered that none of the current users of register_sysctl care as (excpet for directories) they do not register duplicate sysctl entries. So this patch simply removes the support for overriding existing entries in the sys_sysctl interface since no one uses it or cares and it makes future enhancments harder. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andi Kleen <ak@muc.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Corey Minyard <minyard@acm.org> Cc: Neil Brown <neilb@suse.de> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jan Kara <jack@ucw.cz> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] sysctl: C99 convert arch/ia64/kernel/perfmon and remove ABI breakageEric W. Biederman1-9/+47
This convters the sysctl ctl_tables to use C99 initializers. While I was looking at it I discovered it was using a portion of the sysctl binary addresses space under CTL_KERN KERN_OSTYPE which was completely inappropriate. So I completely removed all of the sysctl binary names, to remove and avoid the ABI conflict. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] Scheduled removal of SA_xxx interrupt flags fixupsThomas Gleixner1-1/+1
The obsolete SA_xxx interrupt flags have been used despite the scheduled removal. Fixup the remaining users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Roland Dreier <rolandd@cisco.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Cc: Dave Airlie <airlied@linux.ie> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] mark struct file_operations const 2Arjan van de Ven2-5/+5
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@osdl.org: sparc64 fix] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] Dynamic kernel command-line: fixupsAlon Bar-Lev2-4/+0
Remove in-source externs, linux/init.h is included in all cases. This is a fixups for "Dynamic kernel command-line" patch. It also includes some uml __init fixups so that we can __initdata also its command_line. Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] Dynamic kernel command-line: ia64Alon Bar-Lev3-6/+8
1. Rename saved_command_line into boot_command_line. 2. Set command_line as __initdata. [akpm@osdl.org: move some declarations to the right place] Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Consolidate bust_spinlocks()Kirill Korotaev1-30/+0
Part of long forgotten patch http://groups.google.com/group/fa.linux.kernel/msg/e98e941ce1cf29f6?dmode=source Since then, m32r grabbed two copies. Leave s390 copy because of important absence of CONFIG_VT, but remove references to non-existent timerlist_lock. ia64 also loses timerlist_lock. Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andi Kleen <ak@muc.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().Robert P. J. Day1-2/+1
Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by: Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] disable init/initramfs.c: architecturesJean-Paul Saman1-0/+2
Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs when CONFIG_BLK_DEV_INITRAMFS is not selected. This saves another 4 kbytes on most platfoms (some reserve PAGE_SIZE for initramfs). Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09[PATCH] arch/ia64: ansifyAl Viro2-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-07Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds1-7/+12
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (41 commits) Revert "PCI: remove duplicate device id from ata_piix" msi: Make MSI useable more architectures msi: Kill the msi_desc array. msi: Remove attach_msi_entry. msi: Fix msi_remove_pci_irq_vectors. msi: Remove msi_lock. msi: Kill msi_lookup_irq MSI: Combine pci_(save|restore)_msi/msix_state MSI: Remove pci_scan_msi_device() MSI: Replace pci_msi_quirk with calls to pci_no_msi() PCI: remove duplicate device id from ipr PCI: remove duplicate device id from ata_piix PCI: power management: remove noise on non-manageable hw PCI: cleanup MSI code PCI: make isa_bridge Alpha-only PCI: remove quirk_sis_96x_compatible() PCI: Speed up the Intel SMBus unhiding quirk PCI Quirk: 1k I/O space IOBL_ADR fix on P64H2 shpchp: delete trailing whitespace shpchp: remove DBG_XXX_ROUTINE ...
2007-02-07msi: Make MSI useable more architecturesEric W. Biederman1-7/+12
The arch hooks arch_setup_msi_irq and arch_teardown_msi_irq are now responsible for allocating and freeing the linux irq in addition to setting up the the linux irq to work with the interrupt. arch_setup_msi_irq now takes a pci_device and a msi_desc and returns an irq. With this change in place this code should be useable by all platforms except those that won't let the OS touch the hardware like ppc RTAS. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6Linus Torvalds1-108/+92
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits) ACPICA: reduce table header messages to fit within 80 columns asus-laptop: merge with ACPICA table update ACPI: bay: Convert ACPI Bay driver to be compatible with sysfs update. ACPI: bay: new driver is EXPERIMENTAL ACPI: bay: make drive_bays static ACPI: bay: make bay a platform driver ACPI: bay: remove prototype procfs code ACPI: bay: delete unused variable ACPI: bay: new driver adding removable drive bay support ACPI: dock: check if parent is on dock ACPICA: fix gcc build warnings Altix: Add ACPI SSDT PCI device support (hotplug) Altix: ACPI SSDT PCI device support ACPICA: reduce conflicts with Altix patch series ACPI_NUMA: fix HP IA64 simulator issue with extended memory domain ACPI: fix HP RX2600 IA64 boot ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT ACPICA: Update version to 20070126 ACPICA: Fix for incorrect parameter passed to AcpiTbDeleteTable during table load. ACPICA: Update copyright to 2007. ...
2007-02-06Pull test into release branchLen Brown1-108/+92
2007-02-05[IA64] Hook up getcpu system call for IA64Fenghua Yu1-0/+2
getcpu system call returns cpu# and node# on which this system call and its caller are running. This patch hooks up its implementation on IA64. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] alignment bug in ldscriptKirill Korotaev1-0/+1
Occasionally the FSYS_RETURN patch list can have an odd length, causing other data structures to get out of alignment. In OpenVZ it is odd and we get misaligned kernel image, which does not boot. Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] Clear IRQ affinity when unregisteredAlex Williamson1-0/+5
When we offline a CPU, migrate_irqs() tries to determine whether the affinity bits of the IRQ descriptor match any of the remaining online CPUs. If not, it fixes up the interrupt to point somewhere else. Unfortunately, if an IRQ is unregistered the IRQ descriptor may still have affinity to the CPU being offlined, but the no_irq_chip handler doesn't provide a set_affinity function. This causes us to hit the WARN_ON in migrate_irqs(). The easiest solution seems to be setting all the bits in the affinity mask when the last interrupt is removed from the vector. I hit this on an older kernel with Xen/ia64 using driver domains (so it probably needs more testing on upstream). Xen essentially uses the bind/unbind interface in sysfs to unregister a device from a driver and thus unregister the interrupt. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] Fix NULL-pointer dereference in ia64_machine_kexec()Bernhard Walle2-0/+7
This patch fixes a NULL-pointer dereference in ia64_machine_kexec(). The variable ia64_kimage is set in machine_kexec_prepare() which is called from sys_kexec_load(). If kdump wasn't configured before, ia64_kimage is NULL. machine_kdump_on_init() passes ia64_kimage() to machine_kexec() which assumes a valid value. The patch also adds a few sanity checks for the image to simplify debugging of similar problems in future. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] find thread for user rbs addressbibo,mao1-1/+1
I encountered one problem when running ptrace test case the situation is this: traced process's syscall parameter needs to be accessed, but for sys_clone system call with clone_flag (CLONE_VFORK | CLONE_VM | SIGCHLD) parameter. This syscall's parameter accessing result is wrong. The reason is that vforked child process mm point is the same, but tgid is different. Without this patch find_thread_for_addr will return vforked process if vforked process is also stopped, but not the thread which calls vfork syscall. Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] use snprintf() on features field of /proc/cpuinfoAron Griffis1-17/+14
Some patches have turned up on xen-devel recently to convert strcpy() to safer alternatives and so forth. While reviewing those patches I noticed that the features string building could be cleaned up. This patch uses snprintf() instead of strcpy() and direct character pointer manipulation. It makes the features string building safe and gets rid of the special case for features output in show_cpuinfo() Additionally I removed the (int) cast of ARRAY_SIZE, which seems to serve no purpose. Signed-off-by: Aron Griffis <aron@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] enable singlestep on system callbibo,mao1-6/+6
As is pointed out in http://www.gelato.org/community/view_linear.php?id=1_1036&from=authors&value=Ian%20Wienand#1_1039, if single step on break instruction, the break fault has higher priority than the single-step trap. When the break fault handler is entered, it advances the IP by 1 instruction so break instruction single-stepping is skipped, actually it is next instruction which is single stepped. This patch modifies this, it adds TIF_SINGLESTEP bit for thread flags, and generate a fake sigtrap when single stepping break instruction. Test case in attachment can verify this. Any comments is welcome. Signed-off-by: bibo, mao <bibo.mao@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] kexec: Move machine_shutdown from machine_kexec.c to process.cHorms2-13/+16
This moves the ia64 implementation of machine_shutdown() from machine_kexec.c to process.c, which is in keeping with the implelmentation on other architectures, and seems like a much more appropriate home for it. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] add newline to PAL-code warning messageHorms1-1/+1
Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] kexec: Remove inline declaration of efi_get_pal_addr()Horms1-1/+1
Remove the Remove inline declaration of efi_get_pal_addr() as it is declared in linux/efi.h. Signed-Off-By: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] kexec: Minor enhancement to includes in crash.cHorms1-1/+2
linux/uaccess.h was being included, but it seems that really the following includes are needed. asm/page.h: for __va() and PAGE_SHIFT asm/uaccess.h: for copy_to_user() I guess that linux/uaccess.h pulls in both asm/page.h and asm/uaccess.h. I notices this while backporting the code to xen's linux-2.6.16.33, which does not have linux/uaccess.h. I'm posting it as I think it is a correct, though somewhat cosmetic fix. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] kexec: Fix CONFIG_SMP=n compilationMagnus Damm2-4/+9
Kexec support for 2.6.20 on ia64 does not build properly using a config made up by CONFIG_SMP=n and CONFIG_HOTPLUG_CPU=n: Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Acked-by: Simon Horman <horms@verge.net.au> Acked-by: Jay Lan <jlan@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-03[PATCH] Altix: more ACPI PRT supportJohn Keller1-0/+3
The SN Altix platform does not conform to the IOSAPIC IRQ routing model. Add code in acpi_unregister_gsi() to check if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM) and return. Due to an oversight, this code was not added previously when similar code was added to acpi_register_gsi(). http://marc.theaimsgroup.com/?l=linux-acpi&m=116680983430121&w=2 Signed-off-by: John Keller <jpk@sgi.com> Acked-by: Len Brown <lenb@kernel.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>