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Tag: v2.6.14-rc4
Commits on Oct 11, 2005
  1. Linux v2.6.14-rc4

    Linus Torvalds authored
Commits on Oct 10, 2005
  1. [PATCH] i386: Don't discard upper 32bits of HWCR on K8

    Andi Kleen authored Linus Torvalds committed
    Need to use long long, not long when RMWing a MSR. I think
    it's harmless right now, but still should be better fixed
    if AMD adds any bits in the upper 32bit of HWCR.
    
    Bug was introduced with the TLB flush filter fix for i386
    
    Signed-off-by: Andi Kleen <ak@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  2. [PATCH] x86_64: Allocate cpu local data for all possible CPUs

    Andi Kleen authored Linus Torvalds committed
    CPU hotplug fills up the possible map to NR_CPUs, but it did that after
    setting up per CPU data. This lead to CPU data not getting allocated
    for all possible CPUs, which lead to various side effects.
    
    Signed-off-by: Andi Kleen <ak@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  3. Use the new "kill_proc_info_as_uid()" for USB disconnect too

    Linus Torvalds authored
    All the same issues - we can't just save the pointer to the thread, we
    must save the pid/uid/euid combination.
    
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  4. @laf0rge

    [PATCH] Fix signal sending in usbdevio on async URB completion

    laf0rge authored Linus Torvalds committed
    If a process issues an URB from userspace and (starts to) terminate
    before the URB comes back, we run into the issue described above.  This
    is because the urb saves a pointer to "current" when it is posted to the
    device, but there's no guarantee that this pointer is still valid
    afterwards.
    
    In fact, there are three separate issues:
    
    1) the pointer to "current" can become invalid, since the task could be
       completely gone when the URB completion comes back from the device.
    
    2) Even if the saved task pointer is still pointing to a valid task_struct,
       task_struct->sighand could have gone meanwhile.
    
    3) Even if the process is perfectly fine, permissions may have changed,
       and we can no longer send it a signal.
    
    So what we do instead, is to save the PID and uid's of the process, and
    introduce a new kill_proc_info_as_uid() function.
    
    Signed-off-by: Harald Welte <laforge@gnumonks.org>
    [ Fixed up types and added symbol exports ]
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  5. [SPARC64]: Fix Ultra5, Ultra60, et al. boot failures.

    David S. Miller authored
    On the boot processor, we need to do the move onto the Linux trap
    table a little bit differently else we'll take unhandlable faults in
    the firmware address space.
    
    Previously we would do the following:
    
    1) Disable PSTATE_IE in %pstate.
    2) Set %tba by hand to sparc64_ttable_tl0
    3) Initialize alternate, mmu, and interrupt global
       trap registers.
    4) Call prom_set_traptable()
    
    That doesn't work very well actually with the way we boot the kernel
    VM these days.  It worked by luck on many systems because the firmware
    accesses for the prom_set_traptable() call happened to be loaded into
    the TLB already, something we cannot assume.
    
    So the new scheme is this:
    
    1) Clear PSTATE_IE in %pstate and set %pil to 15
    2) Call prom_set_traptable()
    3) Initialize alternate, mmu, and interrupt global
       trap registers.
    
    and this works quite well.  This sequence has been moved into a
    callable function in assembler named setup-trap_table().  The idea is
    that eventually trampoline.S can use this code as well.  That isn't
    possible currently due to some complications, but eventually we should
    be able to do it.
    
    Thanks to Meelis Roos for the Ultra5 boot failure report.
    
    Signed-off-by: David S. Miller <davem@davemloft.net>
  6. [PATCH] x86_64: Fix change_page_attr cache flushing

    Andi Kleen authored Linus Torvalds committed
    Noticed by Terence Ripperda
    
    Undo wrong change in global_flush_tlb. We need to flush the caches in all
    cases, not just when pages were reverted. This was a bogus optimization
    added earlier, but it was wrong.
    
    Signed-off-by: Andi Kleen <ak@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  7. Merge master.kernel.org:/home/rmk/linux-2.6-ucb

    Linus Torvalds authored
  8. Merge master.kernel.org:/home/rmk/linux-2.6-arm

    Linus Torvalds authored
  9. @kyllikki

    [ARM] 2968/1: defconfig for the ARM Collie platform

    kyllikki authored Russell King committed
    Patch from Vincent Sanders
    
    Add a defconfig for the ARM Collie platform
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Vincent Sanders <vince@arm.linux.org.uk>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  10. @kyllikki

    [ARM] 2967/1: defconfig for the ARM Corgi platform

    kyllikki authored Russell King committed
    Patch from Vincent Sanders
    
    Add a defconfig for the ARM Corgi Zarus platform
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Vincent Sanders <vince@arm.linux.org.uk>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  11. @kyllikki

    [ARM] 2966/1: defconfig for the ARM Poodle platform

    kyllikki authored Russell King committed
    Patch from Vincent Sanders
    
    Add a defconfig for the ARM Poodle Zarus platform
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Vincent Sanders <vince@arm.linux.org.uk>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  12. @kyllikki

    [ARM] 2965/1: defconfig for the ARM Spitz platform

    kyllikki authored Russell King committed
    Patch from Vincent Sanders
    
    Add a defconfig for the ARM Spitz Zarus platform
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Vincent Sanders <vince@arm.linux.org.uk>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  13. [ARM] 2956/1: fix the "Fix gcc4 build errors in ucb1x00-core.c"

    Nicolas Pitre authored Russell King committed
    Patch from Nicolas Pitre
    
    drivers/mfd/ucb1x00-core.c: In function 'ucb1x00_probe':
    drivers/mfd/ucb1x00-core.c:482: error: 'ucb1x00_class' undeclared (first use in this function)
    
    Signed-off-by: Nicolas Pitre <nico@cam.org>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  14. @markus-oberhumer

    [PATCH] i386: fix stack alignment for signal handlers

    markus-oberhumer authored Linus Torvalds committed
    This fixes the setup of the alignment of the signal frame, so that all
    signal handlers are run with a properly aligned stack frame.
    
    The current code "over-aligns" the stack pointer so that the stack frame
    is effectively always mis-aligned by 4 bytes.  But what we really want
    is that on function entry ((sp + 4) & 15) == 0, which matches what would
    happen if the stack were aligned before a "call" instruction.
    
    Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  15. @ozbenh

    [PATCH] ide: Workaround PM problem

    ozbenh authored Linus Torvalds committed
    The logic in ide_do_request() doesn't guarantee that both drives will be
    serviced after a call.  It may "forget" to service one in some
    circumstances, including when one of the drive is suspended (it will
    eventually fail to service the slave when the master is suspended for
    example).  This prevents the wakeup requests that gets queued on wakeup
    from sleep from beeing serviced in some cases when 2 drives are sharing
    an IDE bus.
    
    The problem is deep enough in the way this code works (and there are
    probably a few other problematic but rare corner cases) and fixing it
    would require some major rethinking of the way IDE decides which channel
    to service.  This is not 2.6.14 material.  However, in the meantime,
    Bart has accepted this simple workaround that will fix the crash on
    wakeup from sleep since this specific corner case is actually hitting
    users to get into 2.6.14.
    
    Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  16. [PATCH] relayfs: fix bogus param value in call to vmap

    Tom Zanussi authored Linus Torvalds committed
    The third param in this call to vmap shouldn't be GFP_KERNEL, which
    makes no sense, but rather VM_MAP.  Thanks to Al Viro for spotting
    this.
    
    Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  17. Merge master.kernel.org:/home/rmk/linux-2.6-arm

    Linus Torvalds authored
  18. [PATCH] uml: fix x86_64 with !CONFIG_FRAME_POINTER

    Jeff Dike authored Linus Torvalds committed
    UML/x86_64 doesn't run when built with frame pointers disabled.  There
    was an implicit frame pointer assumption in the stub segfault handler.
    With frame pointers disabled, UML dies on handling its first page fault.
    
    The container-of part of this is from Paolo Giarrusso <blaisorblade@yahoo.it>.
    
    Signed-off-by: Jeff Dike <jdike@addtoit.com>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  19. @rjwysocki

    [PATCH] x86_64: Set up safe page tables during resume

    rjwysocki authored Linus Torvalds committed
    The following patch makes swsusp avoid the possible temporary corruption
    of page translation tables during resume on x86-64.  This is achieved by
    creating a copy of the relevant page tables that will not be modified by
    swsusp and can be safely used by it on resume.
    
    The problem is that during resume on x86-64 swsusp may temporarily
    corrupt the page tables used for the direct mapping of RAM.  If that
    happens, a page fault occurs and cannot be handled properly, which leads
    to the solid hang of the affected system.  This leads to the loss of the
    system's state from before suspend and may result in the loss of data or
    the corruption of filesystems, so it is a serious issue.  Also, it
    appears to happen quite often (for me, as often as 50% of the time).
    
    The problem is related to the fact that (at least) one of the PMD
    entries used in the direct memory mapping (starting at PAGE_OFFSET)
    points to a page table the physical address of which is much greater
    than the physical address of the PMD entry itself.  Moreover,
    unfortunately, the physical address of the page table before suspend
    (i.e.  the one stored in the suspend image) happens to be different to
    the physical address of the corresponding page table used during resume
    (i.e.  the one that is valid right before swsusp_arch_resume() in
    arch/x86_64/kernel/suspend_asm.S is executed).  Thus while the image is
    restored, the "offending" PMD entry gets overwritten, so it does not
    point to the right physical address any more (i.e.  there's no page
    table at the address pointed to by it, because it points to the address
    the page table has been at during suspend).  Consequently, if the PMD
    entry is used later on, and it _is_ used in the process of copying the
    image pages, a page fault occurs, but it cannot be handled in the normal
    way and the system hangs.
    
    In principle we can call create_resume_mapping() from
    swsusp_arch_resume() (ie.  from suspend_asm.S), but then the memory
    allocations in create_resume_mapping(), resume_pud_mapping(), and
    resume_pmd_mapping() must be made carefully so that we use _only_
    NosaveFree pages in them (the other pages are overwritten by the loop in
    swsusp_arch_resume()).  Additionally, we are in atomic context at that
    time, so we cannot use GFP_KERNEL.  Moreover, if one of the allocations
    fails, we should free all of the allocated pages, so we need to trace
    them somehow.
    
    All of this is done in the appended patch, except that the functions
    populating the page tables are located in arch/x86_64/kernel/suspend.c
    rather than in init.c.  It may be done in a more elegan way in the
    future, with the help of some swsusp patches that are in the works now.
    
    [AK: move some externs into headers, renamed a function]
    
    Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
    Signed-off-by: Andi Kleen <ak@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  20. [PATCH] uml: cleanup whitespace for COW driver

    Paolo 'Blaisorblade' Giarrusso authored Linus Torvalds committed
    Fix whitespace - I split this off the previous patch for easier review.
    
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  21. [PATCH] uml: cleanup byte order macros for COW driver

    Paolo 'Blaisorblade' Giarrusso authored Linus Torvalds committed
    After restoring the existing code, make it work also when included in
    kernelspace code (which isn't currently the case, but at least this will prevent
    people from "fixing" it as just happened).
    Whitespace is fixed in next patch - it cluttered the diff too much.
    
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  22. [PATCH] uml: restore include breakage, breaking binary format of COW …

    Paolo 'Blaisorblade' Giarrusso authored Linus Torvalds committed
    …driver
    
    Commit 44456d3, between 2.6.13-rc3 and -rc4,
    was a "nice cleanup" which broke something. Revert the offending part.
    
    It broke because:
    a) because this part doesn't fall under the description
    b) the author didn't know what he was doing here
    c) the author didn't try to compile the existing code and see that it worked
       perfectly.
    d) the author didn't ask us what was happening
    e) you didn't either, and somebody there should have learned that UML is a bit
       different.
    
    In fact, UML is special in linking to host libc and using its includes.
    
    In particular, since host includes always define both __BIG_ENDIAN and
    __LITTLE_ENDIAN, ntohll() macros started thinking to be in a big-endian world;
    and on-disk compatibility was broken.
    
    Many thanks go to Nix for reporting the problem and correctly diagnosing an
    endianness problem.
    
    Btw, this patch restores the previous code, which worked; but the definitions
    would be uncorrect if used in kernelspace files.
    
    Next patch addresses that.
    
    Cc: Nix <nix@esperi.org.uk>, Olaf Hering <olh@suse.de>
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  23. [PATCH] uml: allow building .s/.i/.lst files from userspace files

    Paolo 'Blaisorblade' Giarrusso authored Linus Torvalds committed
    For files which need to include glibc headers (i.e. userspace files), we
    specified the correct flags only for .o, not for .s/.lst/.i. Fix this.
    
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  24. [PATCH] uml: add mode=skas0 as a synonym of skas0

    Paolo 'Blaisorblade' Giarrusso authored Linus Torvalds committed
    Too many people were confused by skas0 and tried using "mode=skas0". And after
    all, they are right - accept this.
    
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  25. [PATCH] Uml: hide commands when not being verbose

    Paolo 'Blaisorblade' Giarrusso authored Linus Torvalds committed
    Add a missing $(Q) to a "ln" invocation.
    
    Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  26. @rostedt

    [PATCH] pcmcia: fix task state at pccard thread exit

    rostedt authored Linus Torvalds committed
    The pccardd thread has a race in it that it can shutdown in the
    TASK_INTERRUPTIBLE state.
    
    Make sure we mark ourselves runnable again as we remove ourselves from
    the wait queue.
    
    Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
  27. [ARM] 2964/1: S3C2410 - serial: add .owner to driver

    Ben Dooks authored Russell King committed
    Patch from Ben Dooks
    
    Initialise the driver's .owner field so that
    the device driver can be referenced to the
    module that owns it
    
    Signed-off-by: Ben Dooks <ben-linux@fluff.org>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  28. [ARM] 2963/1: S3C2410 - add .owner field to device_driver

    Ben Dooks authored Russell King committed
    Patch from Ben Dooks
    
    Add initialisation of .owner field so that
    the device driver can be referenced to the
    module that owns it.
    
    Signed-off-by: Ben Dooks <ben-linux@fluff.org>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  29. @rpurdie

    [ARM] 2962/1: scoop: Allow GPIO pin suspend state to be specified

    rpurdie authored Russell King committed
    Patch from Richard Purdie
    
    Allow the GPIO pin suspend states to be specified for SCOOP devices.
    This is needed for correct operation on the spitz platform.
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  30. @rpurdie

    [ARM] 2961/1: corgi: Add missing include

    rpurdie authored Russell King committed
    Patch from Richard Purdie
    
    Add a missing include from corgi.c
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  31. @rpurdie

    [ARM] 2960/1: collie: Add missing scoop call parameters

    rpurdie authored Russell King committed
    Patch from Richard Purdie
    
    Add some missing parameters from the scoop calls on collie.
    
    Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  32. [ARM] 2959/1: Add test for invalid LDRD/STRD Rd cases in ARM alignmen…

    George G. Davis authored Russell King committed
    …t handler
    
    Patch from George G. Davis
    
    Add test for invalid LDRD/STRD Rd cases in ARM alignment handler
    and restore SWP printk KERN_ERR.
    
    Signed-off-by: Steve Longerbeam <slongerbeam@mvista.com>
    Signed-off-by: George G. Davis <gdavis@mvista.com>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  33. [ARM] 2958/1: fix definition in imx-regs.h

    Sascha Hauer authored Russell King committed
    Patch from Sascha Hauer
    
    Fix PD7_AF_UART2_DTR definition
    
    Signed-off-by: Giancarlo Formicuccia <gformicuccia@atinno.com>
    Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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