- 05 Oct, 2009 14 commits
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Paul Mundt authored
commit a9ece53c upstream. Commit b478b782 "kallsyms, tracing: output more proper symbol name" introduces a "bugfix" that introduces a segfault in kallsyms in my configurations. The cause is the introduction of prefix_underscores_count() which attempts to count underscores, even in symbols that do not have them. As a result, it just uselessly runs past the end of the buffer until it crashes: CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 KSYM .tmp_kallsyms1.S /bin/sh: line 1: 16934 Done sh-linux-gnu-nm -n .tmp_vmlinux1 16935 Segmentation fault | scripts/kallsyms > .tmp_kallsyms1.S make: *** [.tmp_kallsyms1.S] Error 139 This simplifies the logic and just does a straightforward count. Signed-off-by:
Paul Mundt <lethal@linux-sh.org> Reviewed-by:
Li Zefan <lizf@cn.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Ian Armstrong authored
commit 2ddce3fd upstream. Attempting to unload a framebuffer module calls unregister_framebuffer() which in turn gets fbcon to release it. If fbcon has no framebuffers linked to a console, it will also unbind itself from the console driver. However, if fbcon never registered itself as a console driver, the unbind will fail causing the framebuffer device entry to persist. In most cases this failure will result in an oops when attempting to access the now non-existent device. This patch ensures that the fbcon unbind request will succeed even if a bind was never done. It tracks if a successful bind ever occurred & will only attempt to unbind if needed. If there never was a bind, it simply returns with no error. Signed-off-by:
Ian Armstrong <ian@iarmst.demon.co.uk> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by:
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Alex Chiang authored
commit 7e24bc1c upstream. Similar to commit b6adc195 (PCI hotplug: acpiphp wants a 64-bit _SUN), pci_slot.ko reads and creates sysfs directories based on the _SUN method. Certain HP platforms return 64 bits in _SUN. This change to pci_slot.ko allows us to see the correct sysfs directories. Reported-by:
Chad Smith <chad.smith@hp.com> Signed-off-by:
Alex Chiang <achiang@hp.com> Signed-off-by:
Len Brown <len.brown@intel.com> Signed-off-by:
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Henrique de Moraes Holschuh authored
commit 6da25bf5 upstream. X40 (firmware 1V) and T41 (firmware 1R) have been confirmed to work well with the new defaults, so we can stop pestering people to confirm that fact. For now, whitelist just these two firmware types. It is best to have at least one more firmware type confirmed for Radeon 9xxx and Intel GMA-2 ThinkPads before removing the confirmation requests entirely. Reported-by:
Robert de Rooy <robert.de.rooy@gmail.com> Signed-off-by:
Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by:
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Andrew Morton authored
commit 00d3803b upstream. drivers/mfd/ab3100-core.c:647: error: ab3100_init_settings causes a section type conflict Cc: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Jory A. Pratt authored
commit c47efe55 upstream. The arch/*/boot/Makefile use cc-options to check for GCC command options and cc-options use the hardened specs when checking for GCC command options. When -fPIE is pass to cc1 it can't use -ffreestanding or -fno-toplevel-reorder. Then it fail to build stuff with -ffreestanding and -fno-toplevel-reorder. Thanks to Fredric Johansson for finding the main problem behind a failed build using a hardened toolchain. Signed-off-by:
Magnus Granberg <zorry@ume.nu> Signed-off-by:
Jory A. Pratt <anarchy@gentoo.org> Cc: Fredric Johansson <johansson_fredric@hotmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Peter Korsgaard authored
commit 3163eaba upstream. Fixes `s3c_fb_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o With CONFIG_HOTPLUG=n, functions marked with __devexit gets removed, so make sure we use __devexit_p when referencing pointers to them. Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Acked-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Manuel Lauss authored
commit ce60c488 upstream. Add ID for Telit UC-864G GPS/UMTS/WCDMA modem and GPS receiver to the option driver. Signed-off-by:
Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by:
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Huzaifa Sidhpurwala authored
commit a67d8e6c upstream. A few days ago i got the latest ZTE EVDO modem shown at: http://img.alibaba.com/photo/240150115/ZTE_AC2726_EVDO_USB_Data_Modem.jpg It seems that the latest kernel does not have support for it. I wrote a small patch for the options.c module to add the relevant usb ids to it. From: Huzaifa Sidhpurwala <sidhpurwala.huzaifa@gmail.com> Signed-off-by:
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Mike Frysinger authored
commit 0271edd4 upstream. Since early printk only makes sense/works when the serial driver is built into the kernel, disable the option for this driver when it is going to be built as a module. Otherwise we get build failures due to the ifdef handling. Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
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Michal Hocko authored
commit 80938332 upstream. Currently we are not including randomized stack size when calculating mmap_base address in arch_pick_mmap_layout for topdown case. This might cause that mmap_base starts in the stack reserved area because stack is randomized by 1GB for 64b (8MB for 32b) and the minimum gap is 128MB. If the stack really grows down to mmap_base then we can get silent mmap region overwrite by the stack values. Let's include maximum stack randomization size into MIN_GAP which is used as the low bound for the gap in mmap. Signed-off-by:
Michal Hocko <mhocko@suse.cz> LKML-Reference: <1252400515-6866-1-git-send-email-mhocko@suse.cz> Acked-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
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Christian Lamparter authored
commit f7f71173 upstream. This patch adds a new usbid for Zcomax XG-705A to the device table. Reported-by:
Jari Jaakola <jari.jaakola@gmail.com> Signed-off-by:
Christian Lamparter <chunkeey@googlemail.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Robert Hancock authored
commit 90950a25 upstream. On a Compaq Presario V3000 laptop (NVIDIA MCP51 chipset), pata_amd selects PIO0 mode for the PATA DVD-RAM drive instead of MWDMA2 which it supports: ata4.00: ATAPI: HL-DT-ST DVDRAM GSA-4084N, KQ09, max MWDMA2 ata4: nv_mode_filter: 0x39f&0x7001->0x1, BIOS=0x0 (0x0) ACPI=0x7001 (60:600:0x11) ata4.00: configured for PIO0 For some reason, the BIOS-set UDMA configuration returns 0 and the ACPI _GTM reports that UDMA2 and PIO0 are enabled. This causes nv_mode_filter to end up allowing only PIO0 and UDMA0-2. Since the drive doesn't support UDMA we end up using PIO0. Since the controllers should always support PIO4, MWDMA2 and UDMA2 regardless of what cable type is used, let's make sure we don't filter out these modes regardless of what wacky settings the BIOS is using. Signed-off-by:
Robert Hancock <hancockrwd@gmail.com> Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Signed-off-by:
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Sheng Yang authored
commit 95eb84a7 upstream QNX update WP bit when paging enabled, which is not covered yet. This one fix QNX boot with EPT. Signed-off-by:
Sheng Yang <sheng@linux.intel.com> Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
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- 24 Sep, 2009 26 commits
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Greg Kroah-Hartman authored
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Brian King authored
commit 46db2f86 upstream. The SLB can change sizes across a live migration, which was not being handled, resulting in possible machine crashes during migration if migrating to a machine which has a smaller max SLB size than the source machine. Fix this by first reducing the SLB size to the minimum possible value, which is 32, prior to migration. Then during the device tree update which occurs after migration, we make the call to ensure the SLB gets updated. Also add the slb_size to the lparcfg output so that the migration tools can check to make sure the kernel has this capability before allowing migration in scenarios where the SLB size will change. BenH: Fixed #include <asm/mmu-hash64.h> -> <asm/mmu.h> to avoid breaking ppc32 build Signed-off-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Jean Delvare authored
commit 6b5096e4 upstream. One more form factor for Compaq Evo D510, which needs the same quirk as the other form factors. Apparently there's no hardware monitoring chip on that one, but SPD EEPROMs, so it's still worth unhiding the SMBus. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Tested-by:
Nuzhna Pomoshch <nuzhna_pomoshch@yahoo.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Alexander Duyck authored
commit 6f1186be upstream. This patch adds the most recent additions to the list of 82576 device IDs to the list of devices needing the SR-IOV quirk. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Tejun Heo authored
commit ac8672ea upstream. ata_tf_read_block() has off-by-one error when converting CHS address to LBA. The bug isn't very visible because ata_tf_read_block() is used only when generating sense data for a failed RW command and CHS addressing isn't used too often these days. This problem was spotted by Atsushi Nemoto. Signed-off-by:
Tejun Heo <tj@kernel.org> Reported-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
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Marcelo Tosatti authored
commit 1444885a upstream. Otherwise its possible to starve the host by programming lapic timer with a very high frequency. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
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Avi Kivity authored
commit ee3d29e8 upstream. The jump target should not be sign extened; use an unsigned decode flag. Signed-off-by:
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Izik Eidus authored
commit 3b80fffe upstream. First check if the list is empty before attempting to look at list entries. Signed-off-by:
Izik Eidus <ieidus@redhat.com> Signed-off-by:
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Avi Kivity authored
commit c9eaf20f upstream. Absolute jumps use zero extended immediate operands. Signed-off-by:
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Gleb Natapov authored
commit 5fff7d27 upstream. Don't call adjust_vmx_controls() two times for the same control. It restores options that were dropped earlier. This loses us the cr8 exit control, which causes a massive performance regression Windows x64. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
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Jan Kiszka authored
commit 07708c4a upstream. So far unprivileged guest callers running in ring 3 can issue, e.g., MMU hypercalls. Normally, such callers cannot provide any hand-crafted MMU command structure as it has to be passed by its physical address, but they can still crash the guest kernel by passing random addresses. To close the hole, this patch considers hypercalls valid only if issued from guest ring 0. This may still be relaxed on a per-hypercall base in the future once required. Signed-off-by:
Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by:
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Glauber Costa authored
commit a20316d2 upstream. The use of __pa() to calculate the address of a C-visible symbol is wrong, and can lead to unpredictable results. See arch/x86/include/asm/page.h for details. It should be replaced with __pa_symbol(), that does the correct math here, by taking relocations into account. This ensures the correct wallclock data structure physical address is passed to the hypervisor. Signed-off-by:
Glauber Costa <glommer@redhat.com> Signed-off-by:
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Avi Kivity authored
commit 0a79b009 upstream. Debug registers may only be accessed from cpl 0. Unfortunately, vmx will code to emulate the instruction even though it was issued from guest userspace, possibly leading to an unexpected trap later. Signed-off-by:
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Gleb Natapov authored
commit 65a82211 upstream. This bug was introduced by b4a2f5e7. Signed-off-by:
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Marcelo Tosatti authored
commit 6ba66178 upstream. Commit b8bcfe99 made paravirt pte updates synchronous in interrupt context. Unfortunately the KVM pv mmu code caches the lazy/nonlazy mode internally, so a pte update from interrupt context during a lazy mmu operation can be batched while it should be performed synchronously. https://bugzilla.redhat.com/show_bug.cgi?id=518022 Drop the internal mode variable and use paravirt_get_lazy_mode(), which returns the correct state. Signed-off-by:
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Nicolas Pitre authored
commit 7929eb9c upstream. Let's suppose a highmem page is kmap'd with kmap(). A pkmap entry is used, the page mapped to it, and the virtual cache is dirtied. Then kunmap() is used which does virtually nothing except for decrementing a usage count. Then, let's suppose the _same_ page gets mapped using kmap_atomic(). It is therefore mapped onto a fixmap entry instead, which has a different virtual address unaware of the dirty cache data for that page sitting in the pkmap mapping. Fortunately it is easy to know if a pkmap mapping still exists for that page and use it directly with kmap_atomic(), thanks to kmap_high_get(). And actual testing with a printk in the added code path shows that this condition is actually met *extremely* frequently. Seems that we've been quite lucky that things have worked so well with highmem so far. Signed-off-by:
Nicolas Pitre <nico@marvell.com> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
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Jack Steiner authored
commit fa526d0d upstream. Fix address passed to cpa_flush_range() when changing page attributes from WB to UC. The address (*addr) is modified by __change_page_attr_set_clr(). The result is that the pages being flushed start at the _end_ of the changed range instead of the beginning. This should be considered for 2.6.30-stable and 2.6.31-stable. Signed-off-by:
Jack Steiner <steiner@sgi.com> Acked-by:
Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by:
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Tejun Heo authored
commit 6dab62ee upstream. http://bugzilla.kernel.org/show_bug.cgi?id=12542 reports that with the quirk not applied on resume, msi stops working after resuming and mcp78s ahci fails due to IRQ mis-delivery. Apply it on resume too. Signed-off-by:
Nicolas Derive <kalon33@ubuntu.com> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Jeremy Fitzhardinge authored
commit 1ea0d14e upstream. The Intel Optimization Reference Guide says: In Intel Atom microarchitecture, the address generation unit assumes that the segment base will be 0 by default. Non-zero segment base will cause load and store operations to experience a delay. - If the segment base isn't aligned to a cache line boundary, the max throughput of memory operations is reduced to one [e]very 9 cycles. [...] Assembly/Compiler Coding Rule 15. (H impact, ML generality) For Intel Atom processors, use segments with base set to 0 whenever possible; avoid non-zero segment base address that is not aligned to cache line boundary at all cost. We can't avoid having a non-zero base for the stack-protector segment, but we can make it cache-aligned. Signed-off-by:
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> LKML-Reference: <4AA01893.6000507@goop.org> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Roel Kluin authored
commit 005155b1 upstream. For the x86_model to be greater than 6 or less than 12 is logically always true. Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Peter Zijlstra authored
commit 506d4bc8 upstream. The current noise computation does: \Sum abs(n_i - avg(n)) * N^-1.5 Which is (afaik) not a regular noise function, and needs the complete sample set available to post-process. Change this to use a regular stddev computation which can be done by keeping a two sums: stddev = sqrt( 1/N (\Sum n_i^2) - avg(n)^2 ) For which we only need to keep \Sum n_i and \Sum n_i^2. Signed-off-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@kernel.org> LKML-Reference: <new-submission> Signed-off-by:
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Roland Dreier authored
commit fa0681d2 upstream. The current implementation allocates a single host page for EQ context memory, which was OK when we only allocated a few EQs. However, since we now allocate an EQ for each CPU core, this patch removes the hard-coded limit (which we exceed with 4 KB pages and 128 byte EQ context entries with 32 CPUs) and uses the same ICM table code as all other context tables, which ends up simplifying the code quite a bit while fixing the problem. This problem was actually hit in practice on a dual-socket Nehalem box with 16 real hardware threads and sufficiently odd ACPI tables that it shows on boot SMP: Allowing 32 CPUs, 16 hotplug CPUs so num_possible_cpus() ends up 32, and mlx4 ends up creating 33 MSI-X interrupts and 33 EQs. This mlx4 bug means that mlx4 can't even initialize at all on this quite mainstream system. Reported-by:
Eli Cohen <eli@mellanox.co.il> Tested-by:
Christoph Lameter <cl@linux-foundation.org> Signed-off-by:
Roland Dreier <rolandd@cisco.com> Signed-off-by:
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Clemens Ladisch authored
commit f1bc07af upstream. When the volume is changed continuously (e.g., when the user drags a volume slider with the mouse), the driver does lots of I2C writes. Apparently, the sound chip can get confused when we poll the I2C status register too much, and fails to complete a read from it. On the PCI-E models, the PCI-E/PCI bridge gets upset by this and generates a machine check exception. To avoid this, this patch replaces the polling with an unconditional wait that is guaranteed to be long enough. Signed-off-by:
Clemens Ladisch <clemens@ladisch.de> Tested-by: Johann Messner <johann.messner at jku.at> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Mark Brown authored
commit 87831cb6 upstream. It's the 8th enum of a zero indexed array. This is why I don't let new drivers use these arrays of enums... Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
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Sophie Hamilton authored
commit 6148b130 upstream. Fix minimum period size for cs46xx cards. This fixes a problem in the case where neither a period size nor a buffer size is passed to ALSA; this is the case in Audacious, OpenAL, and others. Signed-off-by:
Sophie Hamilton <kernel@theblob.org> Signed-off-by:
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Zhenyu Wang authored
commit 12126482 upstream. As early pci resume has already restored config for host bridge and graphics device, don't need to restore it again, This removes an original order hack for graphics device restore. This fixed the resume hang issue found by Alan Stern on 845G, caused by extra config restore on graphics device. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by:
Dave Airlie <airlied@linux.ie> Signed-off-by:
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