22 Aug, 2008
1 commit
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Implement force params nohrst, nosrst and norst. This is to work
around reset related problems and ease debugging.Signed-off-by: Tejun Heo
Signed-off-by: Jeff Garzik
21 Aug, 2008
1 commit
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"bootmem_debug" is not mentioned in kernel-parameters.txt. Recently I
had to use that kernel option and I think it should be documented.Signed-off-by: Andreas Herrmann
Cc: Ingo Molnar
Cc: Randy Dunlap
Cc: Johannes Weiner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jul, 2008
1 commit
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Some bits were missed when the tipar driver was removed.
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jul, 2008
6 commits
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ACPI defines a hardware signature. BIOS calculates the signature according to
hardware configure and if hardware changes while hibernated, the signature
will change. In that case, S4 resume should fail.Still, there may be systems on which this mechanism does not work correctly,
so it is better to provide a workaround for them. For this reason, add a new
switch to the acpi_sleep= command line argument allowing one to disable
hardware signature checking.[shaohua.li@intel.com: build fix]
Signed-off-by: Shaohua Li
Signed-off-by: Rafael J. Wysocki
Cc: Andi Kleen
Cc: Len Brown
Acked-by: Pavel Machek
Cc:
Cc: Shaohua Li
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Boot-time test for system suspend states (STR or standby). The generic
RTC framework triggers wakeup alarms, which are used to exit those states.- Measures some aspects of suspend time ... this uses "jiffies" until
someone converts it to use a timebase that works properly even while
timer IRQs are disabled.- Triggered by a command line parameter. By default nothing even
vaguely troublesome will happen, but "test_suspend=mem" will give
you a brief STR test during system boot. (Or you may need to use
"test_suspend=standby" instead, if your hardware needs that.)This isn't without problems. It fires early enough during boot that for
example both PCMCIA and MMC stacks have misbehaved. The workaround in
those cases was to boot without such media cards inserted.[matthltc@us.ibm.com: fix compile failure in boot time suspend selftest]
Signed-off-by: David Brownell
Cc: Ingo Molnar
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Signed-off-by: Matt Helsley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Instead of using the variable mmu_huge_psize to keep track of the huge
page size we use an array of MMU_PAGE_* values. For each supported huge
page size we need to know the hugepte_shift value and have a
pgtable_cache. The hstate or an mmu_huge_psizes index is passed to
functions so that they know which huge page size they should use.The hugepage sizes 16M and 64K are setup(if available on the hardware) so
that they don't have to be set on the boot cmd line in order to use them.
The number of 16G pages have to be specified at boot-time though (e.g.
hugepagesz=16G hugepages=5).Signed-off-by: Jon Tollefson
Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allow configurations with the default huge page size which is different to
the traditional HPAGE_SIZE size. The default huge page size is the one
represented in the legacy /proc ABIs, SHM, and which is defaulted to when
mounting hugetlbfs filesystems.This is implemented with a new kernel option default_hugepagesz=, which
defaults to HPAGE_SIZE if not specified.Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add an hugepagesz=... option similar to IA64, PPC etc. to x86-64.
This finally allows to select GB pages for hugetlbfs in x86 now that all
the infrastructure is in place.Signed-off-by: Andi Kleen
Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Boot initialisation is very complex, with significant numbers of
architecture-specific routines, hooks and code ordering. While significant
amounts of the initialisation is architecture-independent, it trusts the data
received from the architecture layer. This is a mistake, and has resulted in
a number of difficult-to-diagnose bugs.This patchset adds some validation and tracing to memory initialisation. It
also introduces a few basic defensive measures. The validation code can be
explicitly disabled for embedded systems.This patch:
Add additional debugging and verification code for memory initialisation.
Once enabled, the verification checks are always run and when required
additional debugging information may be outputted via a mminit_loglevel=
command-line parameter.The verification code is placed in a new file mm/mm_init.c. Ideally other mm
initialisation code will be moved here over time.Signed-off-by: Mel Gorman
Cc: Christoph Lameter
Cc: Andy Whitcroft
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Jul, 2008
1 commit
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…ernel/git/tip/linux-2.6-tip
* 'core/softlockup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
softlockup: fix invalid proc_handler for softlockup_panic
softlockup: fix watchdog task wakeup frequency
softlockup: fix watchdog task wakeup frequency
softlockup: show irqtrace
softlockup: print a module list on being stuck
softlockup: fix NMI hangs due to lock race - 2.6.26-rc regression
softlockup: fix false positives on nohz if CPU is 100% idle for more than 60 seconds
softlockup: fix softlockup_thresh fix
softlockup: fix softlockup_thresh unaligned access and disable detection at runtime
softlockup: allow panic on lockup
22 Jul, 2008
2 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
netfilter: nf_conntrack_sctp: fix sparse warnings
netfilter: nf_nat_sip: c= is optional for session
netfilter: xt_TCPMSS: collapse tcpmss_reverse_mtu{4,6} into one function
netfilter: nfnetlink_log: send complete hardware header
netfilter: xt_time: fix time's time_mt()'s use of do_div()
netfilter: accounting rework: ct_extend + 64bit counters (v4)
netlink: add NLA_PUT_BE64 macro
netfilter: nf_nat_core: eliminate useless find_appropriate_src for IP_NAT_RANGE_PROTO_RANDOM
hdlcdrv: Fix CRC calculation.
Revert "pkt_sched: Make default qdisc nonshared-multiqueue safe."
net: In __netif_schedule() use WARN_ON instead of BUG_ON
net: Improve simple_tx_hash().
pkt_sched: Remove unused variable skb in dev_deactivate_queue function.
sunhme: Remove stop/wake TX queue calls in set-multicast-list handler.
ucc_geth: do not touch net queue in adjust_link phylib callback
gianfar: do not touch net queue in adjust_link phylib callback
atl1: Do not wake queue before queue has been started. -
Initially netfilter has had 64bit counters for conntrack-based accounting, but
it was changed in 2.6.14 to save memory. Unfortunately in-kernel 64bit counters are
still required, for example for "connbytes" extension. However, 64bit counters
waste a lot of memory and it was not possible to enable/disable it runtime.This patch:
- reimplements accounting with respect to the extension infrastructure,
- makes one global version of seq_print_acct() instead of two seq_print_counters(),
- makes it possible to enable it at boot time (for CONFIG_SYSCTL/CONFIG_SYSFS=n),
- makes it possible to enable/disable it at runtime by sysctl or sysfs,
- extends counters from 32bit to 64bit,
- renames ip_conntrack_counter -> nf_conn_counter,
- enables accounting code unconditionally (no longer depends on CONFIG_NF_CT_ACCT),
- set initial accounting enable state based on CONFIG_NF_CT_ACCT
- removes buggy IPCT_COUNTER_FILLING event handling.If accounting is enabled newly created connections get additional acct extend.
Old connections are not changed as it is not possible to add a ct_extend area
to confirmed conntrack. Accounting is performed for all connections with
acct extend regardless of a current state of "net.netfilter.nf_conntrack_acct".Signed-off-by: Krzysztof Piotr Oledzki
Signed-off-by: Patrick McHardy
Signed-off-by: David S. Miller
21 Jul, 2008
1 commit
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…ore', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
20 Jul, 2008
1 commit
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It's not possible to enable the unknown_nmi_panic sysctl option
until init is run. It's useful to be able to panic the kernel
during boot too, this adds a parameter to enable this option.Signed-off-by: Simon Arlott
Signed-off-by: Ingo Molnar
18 Jul, 2008
1 commit
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only supports memory below max_low_pfn.
Signed-off-by: Yinghai Lu
Signed-off-by: Ingo Molnar
17 Jul, 2008
3 commits
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* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (72 commits)
Revert "x86/PCI: ACPI based PCI gap calculation"
PCI: remove unnecessary volatile in PCIe hotplug struct controller
x86/PCI: ACPI based PCI gap calculation
PCI: include linux/pm_wakeup.h for device_set_wakeup_capable
PCI PM: Fix pci_prepare_to_sleep
x86/PCI: Fix PCI config space for domains > 0
Fix acpi_pm_device_sleep_wake() by providing a stub for CONFIG_PM_SLEEP=n
PCI: Simplify PCI device PM code
PCI PM: Introduce pci_prepare_to_sleep and pci_back_from_sleep
PCI ACPI: Rework PCI handling of wake-up
ACPI: Introduce new device wakeup flag 'prepared'
ACPI: Introduce acpi_device_sleep_wake function
PCI: rework pci_set_power_state function to call platform first
PCI: Introduce platform_pci_power_manageable function
ACPI: Introduce acpi_bus_power_manageable function
PCI: make pci_name use dev_name
PCI: handle pci_name() being const
PCI: add stub for pci_set_consistent_dma_mask()
PCI: remove unused arch pcibios_update_resource() functions
PCI: fix pci_setup_device()'s sprinting into a const buffer
...Fixed up conflicts in various files (arch/x86/kernel/setup_64.c,
arch/x86/pci/irq.c, arch/x86/pci/pci.h, drivers/acpi/sleep/main.c,
drivers/pci/pci.c, drivers/pci/pci.h, include/acpi/acpi_bus.h) from x86
and ACPI updates manually. -
"idle=nomwait" disables the use of the MWAIT
instruction from both C1 (C1_FFH) and deeper (C2C3_FFH)
C-states.When MWAIT is unavailable, the BIOS and OS generally
negotiate to use the HALT instruction for C1,
and use IO accesses for deeper C-states.This option is useful for power and performance
comparisons, and also to work around BIOS bugs
where broken MWAIT support is advertised.http://bugzilla.kernel.org/show_bug.cgi?id=10807
http://bugzilla.kernel.org/show_bug.cgi?id=10914Signed-off-by: Zhao Yakui
Signed-off-by: Li Shaohua
Signed-off-by: Len Brown
Signed-off-by: Andi Kleen -
"idle=halt" limits the idle loop to using
the halt instruction. No MWAIT, no IO accesses,
no C-states deeper than C1.If something is broken in the idle code,
"idle=halt" is a less severe workaround
than "idle=poll" which disables all power savings.Signed-off-by: Zhao Yakui
Signed-off-by: Len Brown
Signed-off-by: Andi Kleen
16 Jul, 2008
4 commits
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Conflicts:
kernel/softlockup.c
Signed-off-by: Ingo Molnar
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* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (80 commits)
ide-floppy: fix unfortunate function naming
ide-tape: unify idetape_create_read/write_cmd
ide: add ide_pc_intr() helper
ide-{floppy,scsi}: read Status Register before stopping DMA engine
ide-scsi: add more debugging to idescsi_pc_intr()
ide-scsi: use pc->callback
ide-floppy: add more debugging to idefloppy_pc_intr()
ide-tape: always log debug info in idetape_pc_intr() if debugging is enabled
ide-tape: add ide_tape_io_buffers() helper
ide-tape: factor out DSC handling from idetape_pc_intr()
ide-{floppy,tape}: move checking of ->failed_pc to ->callback
ide: add ide_issue_pc() helper
ide: add PC_FLAG_DRQ_INTERRUPT pc flag
ide-scsi: move idescsi_map_sg() call out from idescsi_issue_pc()
ide: add ide_transfer_pc() helper
ide-scsi: set drive->scsi flag for devices handled by the driver
ide-{cd,floppy,tape}: remove checking for drive->scsi
ide: add PC_FLAG_ZIP_DRIVE pc flag
ide-tape: factor out waiting for good ireason from idetape_transfer_pc()
ide-tape: set PC_FLAG_DMA_IN_PROGRESS flag in idetape_transfer_pc()
... -
* Remove obsoleted "hdx=" kernel parameters.
* Remove no longer used stridx() and match_parm().
Signed-off-by: Bartlomiej Zolnierkiewicz
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* 'timers/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: add PCI ID for 6300ESB force hpet
x86: add another PCI ID for ICH6 force-hpet
kernel-paramaters: document pmtmr= command line option
acpi_pm clccksource: fix printk format warning
nohz: don't stop idle tick if softirqs are pending.
pmtmr: allow command line override of ioport
nohz: reduce jiffies polling overhead
hrtimer: Remove unused variables in ktime_divns()
hrtimer: remove warning in hres_timers_resume
posix-timers: print RT watchdog message
15 Jul, 2008
3 commits
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Signed-off-by: Thomas Gleixner
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (241 commits)
[ARM] 5171/1: ep93xx: fix compilation of modules using clocks
[ARM] 5133/2: at91sam9g20 defconfig file
[ARM] 5130/4: Support for the at91sam9g20
[ARM] 5160/1: IOP3XX: gpio/gpiolib support
[ARM] at91: Fix NAND FLASH timings for at91sam9x evaluation kits.
[ARM] 5084/1: zylonite: Register AC97 device
[ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model
[ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers
[ARM] 5147/1: pxaficp_ir: drop pxa_gpio_mode calls, as pin setting
[ARM] 5145/1: PXA2xx: provide api to control IrDA pins state
[ARM] 5144/1: pxaficp_ir: cleanup includes
[ARM] pxa: remove pxa_set_cken()
[ARM] pxa: allow clk aliases
[ARM] Feroceon: don't disable BPU on boot
[ARM] Orion: LED support for HP mv2120
[ARM] Orion: add RD88F5181L-FXO support
[ARM] Orion: add RD88F5181L-GE support
[ARM] Orion: add Netgear WNR854T support
[ARM] s3c2410_defconfig: update for current build
[ARM] Acer n30: Minor style and indentation fixes.
... -
… 'timers/clocksource' and 'timers/posixtimers' into timers/for-linus
12 Jul, 2008
1 commit
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Signed-off-by: Thomas Gleixner
08 Jul, 2008
4 commits
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Applies on top of the previous patch:
x86 boot: add code to add BIOS provided EFI memory entries to kernelInstead of always adding EFI memory map entries (if present) to the
memory map after initially finding either E820 BIOS memory map entries
and/or kernel command line memmap entries, -instead- only add such
additional EFI memory map entries if the kernel boot option:add_efi_memmap
is specified.
Requiring this 'add_efi_memmap' option is backward compatible with
kernels that didn't load such additional EFI memory map entries in
the first place, and it doesn't override a configuration that tries
to replace all E820 or EFI BIOS memory map entries with ones given
entirely on the kernel command line.Signed-off-by: Paul Jackson
Cc: "Yinghai Lu"
Cc: "Jack Steiner"
Cc: "Mike Travis"
Cc: "Huang
Cc: Ying"
Cc: "Andi Kleen"
Cc: "Andrew Morton"
Cc: Paul Jackson
Signed-off-by: Ingo Molnar -
Conflicts:
arch/x86/Kconfig
arch/x86/kernel/io_apic_32.c
arch/x86/kernel/setup_64.c
arch/x86/mm/init_32.cSigned-off-by: Ingo Molnar
-
… 'x86/ptrace' and 'x86/amd-iommu' into x86/devel
07 Jul, 2008
1 commit
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amd_iommu=off was replaced with a common parameter, iommu=off.
Signed-off-by: FUJITA Tomonori
Cc: joerg.roedel@amd.com
Cc: iommu@lists.linux-foundation.org
Cc: bhavna.sarathy@amd.com
Cc: robert.richter@amd.com
Cc: rjw@sisk.pl
Signed-off-by: Ingo Molnar
05 Jul, 2008
2 commits
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Document the kernel boot parameter: relax_domain_level=.
Signed-off-by: Paul Jackson
Cc: Michael Kerrisk
Reviewed-by: Li Zefan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix stale references to source files in kernel-parameters.txt.
Signed-off-by: Pavel Machek
Acked-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Jul, 2008
1 commit
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This is the base machine support for the Logitech Jive
machine.Signed-off-by: Ben Dooks
27 Jun, 2008
1 commit
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Add documentation for the kernel parameters introduced with this driver.
Signed-off-by: Joerg Roedel
Cc: iommu@lists.linux-foundation.org
Cc: bhavna.sarathy@amd.com
Cc: Sebastian.Biemueller@amd.com
Cc: robert.richter@amd.com
Cc: joro@8bytes.org
Signed-off-by: Ingo Molnar
13 Jun, 2008
1 commit
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ACPI PM: Add possibility to change suspend sequence
There are some systems out there that don't work correctly with
our current suspend/hibernation code ordering. Provide a workaround
for these systems allowing them to pass 'acpi_sleep=old_ordering' in
the kernel command line so that it will use the pre-ACPI 2.0 ("old")
suspend code ordering.Unfortunately, this requires us to add a platform hook to the
resuming of devices for recovering the platform in case one of the
device drivers' .suspend() routines returns error code. Namely,
ACPI 1.0 specifies that _PTS should be called before suspending
devices, but _WAK still should be called before resuming them in
order to undo the changes made by _PTS. However, if there is an
error during suspending devices, they are automatically resumed
without returning control to the PM core, so the _WAK has to be
called from within device_resume() in that cases.The patch also reorders and refactors the ACPI suspend/hibernation
code to avoid duplication as far as reasonably possible.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Jesse Barnes
11 Jun, 2008
1 commit
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Contention for scarce PCI memory resources has been growing
due to an increasing number of PCI slots in large multi-node
systems. The kernel currently attempts by default to
allocate memory for all PCI expansion ROMs so there has
also been an increasing number of PCI memory allocation
failures seen on these systems. This occurs because the
BIOS either (1) provides insufficient PCI memory resource
for all the expansion ROMs or (2) provides adequate PCI
memory resource for expansion ROMs but provides the
space in kernel unexpected BIOS assigned P2P non-prefetch
windows.The resulting PCI memory allocation failures may be benign
when related to memory requests for expansion ROMs themselves
but in some cases they can occur when attempting to allocate
space for more critical BARs. This can happen when a successful
expansion ROM allocation request consumes memory resource
that was intended for a non-ROM BAR. We have seen this
happen during PCI hotplug of an adapter that contains a
P2P bridge where successful memory allocation for an
expansion ROM BAR on device behind the bridge consumed
memory that was intended for a non-ROM BAR on the P2P bridge.
In all cases the allocation failure messages can be very
confusing for users.This patch provides a new 'pci=norom' kernel boot parameter
that can be used to disable the default PCI expansion ROM memory
resource allocation. This provides a way to avoid the above
described issues on systems that do not contain PCI devices
for which drivers or user-level applications depend on the
default PCI expansion ROM memory resource allocation behavior.Signed-off-by: Gary Hade
Signed-off-by: Jesse Barnes
25 May, 2008
3 commits
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Loop through mtrr chunk_size and gran_size from 1M to 2G to find out
the optimal value so user does not need to add mtrr_chunk_size and
mtrr_gran_size to the kernel command line.If optimal value is not found, print out all list to help select less
optimal value.Add mtrr_spare_reg_nr= so user could set 2 instead of 1, if the card
need more entries.v2: find the one with more spare entries
v3: fix hole_basek offset
v4: tight the compare between range and range_new
loop stop with 4gSigned-off-by: Yinghai Lu
Cc: Andrew Morton
Cc: Gabriel C
Cc: Mika Fischer
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar -
some BIOS like to use continus MTRR layout, and X driver can not add
WB entries for graphical cards when 4g or more RAM installed.the patch will change MTRR to discrete.
mtrr_chunk_size= could be used to have smaller continuous block to hold holes.
default is 256m, could be set according to size of graphics card memory.mtrr_gran_size= could be used to send smallest mtrr block to avoid run out of MTRRs
v2: fix -1 for UC checking
v3: default to disable, and need use enable_mtrr_cleanup to enable this feature
skip the var state change warning.
remove next_basek in range_to_mtrr()
v4: correct warning mask.
v5: CONFIG_MTRR_SANITIZER
v6: fix 1g, 2g, 512 aligment with extra hole
v7: gran_sizek to prevent running out of MTRRs.
v8: fix hole_basek caculation caused when removing next_basek
gran_sizek using when basek is 0.need to apply
[PATCH] x86: fix trimming e820 with MTRR holes.
right after this one.Signed-off-by: Yinghai Lu
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
allow users to configure the softlockup detector to generate a panic
instead of a warning message.high-availability systems might opt for this strict method (combined
with panic_timeout= boot option/sysctl), instead of generating
softlockup warnings ad infinitum.also, automated tests work better if the system reboots reliably (into
a safe kernel) in case of a lockup.The full spectrum of configurability is supported: boot option, sysctl
option and Kconfig option.it's default-disabled.
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner
