09 Mar, 2007
6 commits
-
Bring defconfig, tiger_defconfig and zx1_defconfig up to date. Also
sprinkle KEXEC and KDUMP combinations around liberally so that my
usual regression test builds will see all combinations:tiger_defconfig gets KEXEC=y, CRASH_DUMP=n
zx1_defconfig gets KEXEC=n, CRASH_DUMP=y
defconfig gets KEXEC=y, CRASH_DUMP=y
others remain at KEXEC=n, CRASH_DUMP=nSigned-off-by: Tony Luck
-
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
Signed-off-by: Tony Luck -
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
Signed-off-by: Tony Luck -
Grammatical fixes (s/freezed/frozen/)
Make some variables static
Change a C++ "//" comment to "/* ... */"Signed-off-by: Simon Horman
Signed-off-by: Tony Luck -
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
Signed-off-by: Tony Luck -
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
08 Mar, 2007
19 commits
-
In my previous x86_64 thread fix, I forgot to initialize thread.arch.fs in
arch_prctl. A process calling arch_prctl to set %fs would lose it on the
next context switch.It also turns out that you can switch to a process which is in the process
of exiting and which has lost its mm. In this case, it's worse than
useless to try to call arch_prctl on the host process.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
IA64 and ARM-OABI are currently using their own version of epoll compat_
code.An architecture needs epoll_event translation if alignof(u64) in 32 bit
mode is different from alignof(u64) in 64 bit mode. If an architecture
needs epoll_event translation, it must define struct compat_epoll_event in
asm/compat.h and set CONFIG_HAVE_COMPAT_EPOLL_EVENT and use
compat_sys_epoll_ctl and compat_sys_epoll_wait.All 64 bit architecture should use compat_sys_epoll_pwait.
[sfr: restructure and move to fs/compat.c, remove MIPS version
of compat_sys_epoll_pwait, use __put_user_unaligned]Signed-off-by: Stephen Rothwell
Cc: David Woodhouse
Cc: Russell King
Cc: "Luck, Tony"
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Also PTRACE_OLDSETOPTIONS should be accepted, as done by kernel/ptrace.c
and forced by binary compatibility. UML/32bit breaks because of this -
since it is wise enough to use PTRACE_OLDSETOPTIONS to be binary compatible
with 2.4 host kernels.Until 2.6.17 (commit f0f2d6536e3515b5b1b7ae97dc8f176860c8c2ce) we had:
default:
return sys_ptrace(request, pid, addr, data);Instead here we have:
case PTRACE_GET_THREAD_AREA:
case ...:
return sys_ptrace(request, pid, addr, data);default:
return -EINVAL;This change was a style change - when a case is added, it must be
explicitly tested this way. In this case, not enough testing was done.Cc: Andi Kleen
Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Avoid reusing userspace errno twice - it can be cleared by libc code
everywhere (in particular printk() does clear it in my setup).Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Avoid returning ENOMEM in case of a duplicate IRQ - ENOMEM was saved into err
earlier.Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix confusion about call context - comments and code are inconsistent and
plain wrong, my fault.Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since both UML consoles do not use percpu variables, they may be called when
the cpu is still offline, and they may be marked CON_ANYTIME (this is
documented in kernel/printk.c, grep for CON_ANYTIME to find mentions of this).Works well in testing done with lock debug enabled, should be safe but is not
needed for next release.This would probably help also stderr_console.c, but this is yet to test.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
os_usr1_signal() is totally unused, os_usr1_process() is used only by TT mode.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Memory allocated by mcast_user_init must be freed in the matching mcast_remove.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] ARC: Fix several compiler warnings.
[MIPS] ISA: Fix typo
[CHAR] ds1286: Fix handling of seconds in RTC_ALM_SET ioctl. -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fsys_getcpu for IA64
[IA64] remove duplicate declaration of efi_initialize_iomem_resources
[IA64] Pick highest possible saved_max_pfn for crash_dump
[IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function -
CC arch/mips/arc/init.o
arch/mips/arc/init.c: In function 'prom_init':
arch/mips/arc/init.c:27: warning: ISO C90 forbids mixed declarations and code
arch/mips/arc/init.c:35: warning: format ‘%08lx’ expects type ‘long unsigned int’, but argument 2 has type 'ULONG'
arch/mips/arc/init.c:28: warning: unused variable 'c'
arch/mips/arc/init.c:27: warning: unused variable ‘cnt’Signed-off-by: Ralf Baechle
-
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
Signed-off-by: Tony Luck -
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
Signed-off-by: Tony Luck -
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
-
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
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
avr32: dma-mapping.h
[AVR32] Don't use kmap() in flush_icache_page()
[AVR32] Fix bogus ti->flags manipulation in debug handler
[AVR32] Fix typo in include/asm-avr32/Kbuild
[AVR32] show_trace: Only walk valid stack addresses
[AVR32] at32_spi_setup_slaves should be __init -
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Kill off I/O cruft for R7780RP.
sh: Revert lazy dcache writeback changes.
sh: Enable SM501 support for RTS7751R2D.
sh: Use L1_CACHE_BYTES for .data.cacheline_aligned.
sysctl: Support vdso_enabled sysctl on SH.
sh: Fix kernel thread stack corruption with preempt.
doc: Add SH to vdso and earlyprintk in kernel-parameters.txt
sh: Fix sigmask trampling in signal delivery.
sh: Clear UBC when not in use. -
check_tsc_sync_source() depends on being called with irqs disabled (it
checks whether the TSC is coherent across two specific CPUs). This is
incidentally true during bootup, but not during cpu hotplug __cpu_up().
This got found via smp_processor_id() debugging.disable irqs explicitly and remove the unconditional enabling of
interrupts. Add touch_nmi_watchdog() to the cpu_online_map busy loop.this bug is present both on i386 and on x86_64.
Reported-by: Michal Piotrowski
Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds
07 Mar, 2007
15 commits
-
flush_icache_page() can be called from atomic context, so we can't
use kmap(). Use page_address() instead.Signed-off-by: Haavard Skinnemoen
-
We should OR in a bitmask, not a bit offset, into ti->flags. This
might fix some strange behaviour when single stepping.Also, use set_ti_thread_flag() to manipulate the flags to avoid
surprises in the future.Signed-off-by: Haavard Skinnemoen
-
Terminate the frame pointer walk if (a) the address is outside the
task's kernel stack or (b) if the frame pointer isn't monotonically
increasing. Without this fix, show_trace() may enter an infinite
loop, walking through random data anywhere in memory.Since any address within the kernel stack is guaranteed to be valid,
we may eliminate the __get_user() calls as well.Signed-off-by: Haavard Skinnemoen
-
Signed-off-by: Haavard Skinnemoen
-
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] cio: Call cancel_halt_clear even when actl == 0.
[S390] cio: Use path verification to check for path state.
[S390] cio: Fix locking when calling notify function.
[S390] Fixed handling of access register mode faults.
[S390] dasd: Use default recovery for SNSS requests
[S390] check_bugs() should be inline.
[S390] tape: Compression overwrites crypto setting
[S390] nss: disable kexec.
[S390] reipl: move dump_prefix_page out of text section.
[S390] smp: disable preemption in smp_call_function/smp_call_function_on
[S390] kprobes breaks BUG_ON -
Remove un-used/un-referenced local_bh_count.
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Use irq_handler_t for passing clock handler routine around.
And use new rtc_time in place of hwclock_time.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Remove regs arg from bad interrupt handler.
Use irq_handler_t type for handler arg of local request_irq().Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Use irq_handler_t type for passing around timer interrupt routine
in 368360 setup code.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Use irq_handler_t type for passing around timer interrupt routine.
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] kexec: Use EFI_LOADER_DATA for ELF core header
[IA64] permon use-after-free fix
[IA64] sync compat getdents
[IA64] always build arch/ia64/lib/xor.o
[IA64] Remove stack hard limit on ia64
[IA64] point saved_max_pfn to the max_pfn of the entire system
Revert "[IA64] swiotlb abstraction (e.g. for Xen)" -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] IP27: Build fix
[MIPS] Wire up ioprio_set and ioprio_get.
[MIPS] Fix __raw_read_trylock() to allow multiple readers
[MIPS] Export __copy_user_inatomic.
[MIPS] R2 bitops compile fix for gcc < 4.0.
[MIPS] TX39: Remove redundant tx39_blast_icache() calls
[MIPS] Cobalt: Fix early printk
[MIPS] SMTC: De-obscure Malta hooks.
[MIPS] SMTC: Add fordward declarations for mm_struct and task_struct.
[MIPS] SMTC: must include
[MIPS] SMTC: must include
[MIPS] Atlas, Malta: Fix build warning. -
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
sis900 warning fixes
mv643xx_eth: Place explicit port number in mv643xx_eth_platform_data
pcnet32: Fix PCnet32 performance bug on non-coherent architecutres
__devinit & __devexit cleanups for de2104x driver
3c59x: Handle pci_enable_device() failure while resuming
dmfe: Fix link detection
dmfe: fix two bugs
dmfe: trivial/spelling fixes
revert "drivers/net/tulip/dmfe: support basic carrier detection"
ucc_geth: returns NETDEV_TX_BUSY when BD ring is full
ucc_geth: Fix BD processing
natsemi: netpoll fixes
bonding: Improve IGMP join processing
bonding: only receive ARPs for us
bonding: fix double dev_add_pack -
Signed-off-by: Ralf Baechle
-
Signed-off-by: Ralf Baechle
