| Commit message (Collapse) | Author | Age |
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The LWS debugging code on parisc is wrongly enabled due to a bug in the
use of the preprocessor directives. This debugging code is not thread
safe and causes problems with a recent glibc on SMP kernels.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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As side effect, remove one more ->get_info user and a novel approach of content
generation:
sprintf(buf, "%sfoo", buf, ...);
sprintf(buf, "%sbar", buf, ...);
...
Compile-tested.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Definitely unimplemented at this point and will just
trap to sys_ni_syscall...
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Add VERIFY_WRITE check in the beginning like compat_sys_getdents() EFAULT on
parisc if put_user() fails.
Signed-off-by: Alexandr Andreev <aandreev@openvz.org>
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Fix args to sun4v_ldc_revoke().
[SPARC64]: Really fix parport.
[SPARC64]: Fix IO/MEM space sizing for PCI.
[SPARC64]: Wire up cookie based sun4v interrupt registry.
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First argument is LDC channel ID, then mapping cookie,
then the MTE revoke cookie.
Signed-off-by: David S. Miller <davem@davemloft.net>
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In pci_determine_mem_io_space(), do not hard code the region sizes.
Instead, use the values given to us in the ranges property.
Thanks goes to Mikael Petterson for the original Xorg failure
bug repoert, and strace dumps from Mikael and Dmitry Artamonow.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This will be used for logical domain channel interrupts.
Signed-off-by: David S. Miller <davem@davemloft.net>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4445/1: ANUBIS: Fix CPLD registers
[ARM] 4444/2: OSIRIS: CPLD suspend fix
[ARM] 4443/1: OSIRIS: Add watchdog device to machine devices
[ARM] 4442/1: OSIRIS: Fix CPLD register definitions
[ARM] VFP: fix section mismatch error
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Update the ANUBIS register definitions inline with the
specs and ensure they are registered correctly.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Ensure the CPLD 8bit settings are preserved over a suspend/resume
cycle as the CPU sends a hard-reset at resume time.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add the watchdog timer to the list of devices
the Osiris registers at startup.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix the CPLD register definitions to correctly mirror the
documentation
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix a real section mismatch issue; the test code is thrown away after
initialisation, but if we do not detect the VFP hardware, it is left
hooked into the exception handler. Any VFP instructions which are
subsequently executed risk calling the discarded exception handler.
Introduce a new "null" handler which returns to the "unrecognised
fault" return address.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Fix smp barriers in test_and_{change,clear,set}_bit
[MIPS] Fix IP27 build
[MIPS] Fix modpost warnings by making start_secondary __cpuinit
[MIPS] SMTC: Fix build error caused by nonsense code.
[MIPS] SMTC: The MT ASE requires to initialize c0_pagemask and c0_wired.
[MIPS] SMTC: Don't continue in set_vi_srs_handler on detected bad arguments.
[MIPS] SMTC: Fix warning.
[MIPS] Wire up utimensat, signalfd, timerfd, eventfd
[MIPS] Atlas: Fix build.
[MIPS] Always install the DSP exception handler.
[MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
[MIPS] Fix KMODE for the R3000
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IP27 does no longer have ZONE_DMA.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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WARNING: arch/mips/kernel/built-in.o(.text+0x9a58): Section mismatch: reference to .init.text:cpu_report (between 'start_secondary' and 'smp_prepare_boot_cpu')
WARNING: arch/mips/kernel/built-in.o(.text+0x9a60): Section mismatch: reference to .init.text:per_cpu_trap_init (between 'start_secondary' and 'smp_prepare_boot_cpu')
WARNING: arch/mips/kernel/built-in.o(.text+0x9adc): Section mismatch: reference to .init.text:cpu_probe (between 'start_secondary' and 'smp_prepare_boot_cpu')
mipsel-linux-objcopy -S -O srec --remove-section=.reginfo --remove-section=.mdebug --remove-section=.comment --remove-section=.note --remove-section=.pdr --remove-section=.options --remove-section=.MIPS.options vmlinux arch/mips/boot/vmlinux.srec
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Some non-DSP enabled cores 24K / 34K can generate a DSP exception where they
are actually expected to produce a reserved instruction exception.
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This did corrupt register s0 which the caller of self_ipi expects to
be unchanged. This is a kernel bug which will only be triggered with
the compilers which compile __smtc_ipi_replay to use s0 across the
invocation of self_ipi. Gcc 4.1.2 does this, for example.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Handle PCI bridges without 'ranges' property.
[SPARC64]: Include <linux/rwsem.h> instead of <asm/rwsem.h>.
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This fixes the IDE controller not showing up on Netra-T1
systems.
Just like Simba bridges, some PCI bridges can lack the
'ranges' OBP property. So we handle this similarly to
the existing Simba code:
1) In of_device register address resolving, we push the
translation to the parent.
2) In PCI device scanning, we interrogate the PCI config
space registers of the PCI bus device in order to resolve
the resources, just like the generic Linux PCI probing
code does.
With much help and testing from Fabio, who also reported
the initial problem.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Fabio Massimo Di Nitto <fabbione@ubuntu.com>
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To be consistent with other architectures, include the generic version
of rwsem.h.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We don't want to see this:
> BUG: using smp_processor_id() in preemptible [00000001] code: bash/3857
> caller is oops_begin+0xb/0x6f
>
> Call Trace:
> [<ffffffff8020ab4d>] show_trace+0x34/0x4f
> [<ffffffff8020ab7a>] dump_stack+0x12/0x17
> [<ffffffff8030d92d>] debug_smp_processor_id+0xad/0xbc
> [<ffffffff8042388f>] oops_begin+0xb/0x6f
> [<ffffffff8042520b>] do_page_fault+0x66a/0x7c0
> [<ffffffff804234bd>] error_exit+0x0/0x84
>
coming out when the kernel is trying to oops.
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We aren't sampling for holes in memory. Thus we encounter a section hole
with empty section map pointer for SPARSEMEM and OOPs for show_mem. This
issue has been seen in 2.6.21, current git and current mm. The patch below
is for mainline and mm. It was boot tested for SPARSEMEM, current VMEMMAP
of Andy's in mm ml and DISCONTIGMEM. A slightly different patch will be
posted to stable for 2.6.21.
Previous to commit f0a5a58aa812b31fd9f197c4ba48245942364eae memory_present
was called for node_start_pfn to node_end_pfn. This would cover the
hole(s) with reserved pages and valid sections. Most SPARSEMEM supported
arches do a pfn_valid check in show_mem before computing the page structure
address.
This issue was brought to my attention on IRC by Arnaldo Carvalho de Melo.
Thanks to Arnaldo for testing.
Signed-off-by: Bob Picco <bob.picco@hp.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Include linux/kernel.h wherever simple_strtoul is used. This kills a
compile warning in stderr_console.c and potential ones in the other files.
This also fixes a bunch of style violations in exitcode.c.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Force KERNEL_STACK_ORDER to be at least 1 on UML/x86_64, to avoid overflows.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix various bits of obviously-busted code which we're not happening to
compile, due to ifdefs.
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The coldfire timer runs from 0 to TRR included, then 0 again and so on. It
counts thus actually TRR + 1 steps for 1 tick, not TRR. Fix that.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.linux-xtensa.org/kernel/xtensa-feed:
Xtensa: use asm-generic/fcntl.h
[XTENSA] Remove non-rt signal handling
[XTENSA] Move common sections into bss sections
[XTENSA] clean-up header files
[XTENSA] Use generic 64-bit division
[XTENSA] Remove multi-exported symbols from xtensa_ksyms.c
[XTENSA] fix sources using deprecated assembler directive
[XTENSA] Spelling fixes in arch/xtensa
[XTENSA] fix bit operations in bitops.h
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The non-rt signal handling was never really used, so we don't break
anything. This patch also cleans up the signal stack-frame to make
it independent from the processor configuration. It also improves
the method used for controlling single-stepping. We now save and
restore the 'icountlevel' register that controls single stepping
and set or clear the saved state to enable or disable it.
Signed-off-by: Chris Zankel <chris@zankel.net>
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Move the fields of the COMMON sections 'swapper_pg_dir' and
'empty_zero_page' to the BSS section. Remove the unused COMMON
sections 'emtpy_bad_page_table' and 'empty_bad_page'.
Signed-off-by: Chris Zankel <chris@zankel.net>
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The header files in the asm-xtensa directory are not clean and
'make headers_check' fails. This is a first patch to fix most of
the header files. It removes unnecessary include statements and
adds some that are required for building the kernel. The linker
script required some updates or the linking stage would fail.
Signed-off-by: Chris Zankel <chris@zankel.net>
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This patch removes the following symbols from
arch/xtensa/kernel/xtensa_ksyms.c that were already exported:
memcmp, memchr, strcat, strchr, strlen, stncat, strnlen, strrchr,
strstr, enable_irq, and disable_irq
Signed-off-by: Chris Zankel <chris@zankel.net>
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The assembler directive '.begin literal' is deprecated in the newer
versions of the binutils (strncopy_user.S and strnlen_user.S).
Signed-off-by: Chris Zankel <chris@zankel.net>
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Spelling fixes in arch/xtensa/.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Chris Zankel <chris@zankel.net>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Fix SBUS IRQ regression caused by PCI-E driver.
[SPARC64]: Fix 2 bugs in PCI Sabre bus scanning.
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We used to access the 64-bit IRQ IMAP and ICLR registers of bus
controllers 4-bytes in and as a 32-bit register word, since only the
low 32-bits were relevant. This seemed like a good idea at the time.
But the PCI-E controller requires full 8-byte 64-bit access to
these registers, so we switched over to accessing them fully.
SBUS was not adjusted properly, which broke interrupts completely.
Signed-off-by: David S. Miller <davem@davemloft.net>
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If we are on hummingbird, bus runs at 66MHZ.
pbm->pci_bus should be setup with the result of pci_scan_one_pbm()
or else we deref NULL pointers in the error interrupt handlers.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This is a minor fix, but what is currently there is essentially wrong.
In do_page_fault, if the faulting address from user code happens to be
in kernel address space (int *p = (int*)-1; p = 0xbed;) then the
do_page_fault handler will jump over the local_irq_enable with the
goto bad_area_nosemaphore;
But the first line there sees this is user code and goes through the
process of sending a signal to send SIGSEGV to the user task. This whole
time interrupts are disabled and the task can not be preempted by a
higher priority task.
This patch always enables interrupts in the user path of the
bad_area_nosemaphore.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] pxa: fix pxa27x keyboard driver
[ARM] Fix 4417/1: Serial: Fix AMBA drivers locking
[ARM] 4421/1: AT91: Value of _KEY fields.
[ARM] Solve buggy smp_processor_id() usage
[ARM] 4422/1: Fix default value handling in gpio_direction_output (PXA)
[ARM] 4419/1: AT91: SAM9 USB clocks check for suspending
[ARM] 4418/1: AT91: Number of programmable clocks differs
[ARM] 4392/2: Do not corrupt the SP register in compressed/head.S
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BUG: using smp_processor_id() in preemptible [00000001] code: opcontrol/427
Resolve this bug by ensuring that we're not using smp_processor_id() in
a preemptable context (by disabling preemption.)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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