LinuxLists.cc - mmotm 2010-04-05-16-09 uploaded

2010-04-05 23:37:19

Subject: mmotm 2010-04-05-16-09 uploaded

The mm-of-the-moment snapshot 2010-04-05-16-09 has been uploaded to

http://userweb.kernel.org/~akpm/mmotm/

and will soon be available at

git://zen-kernel.org/kernel/mmotm.git

It contains the following patches against 2.6.34-rc3:

origin.patch
rmap-fix-anon_vma_fork-memory-leak.patch
bitops-remove-temporary-for_each_bit.patch
linux-next.patch
linux-next-git-rejects.patch
next-remove-localversion.patch
i-need-old-gcc.patch
arch-x86-crypto-aesni-intel_asms-still-busted.patch
include-linux-fsh-complete-hexification-of-fmode_-constants.patch
exit-fix-oops-in-sync_mm_rss.patch
exit-fix-oops-in-sync_mm_rss-fix.patch
include-linux-kfifoh-fix-init_kfifo.patch
vesafb-use-platform_driver_probe-instead-of-platform_driver_register.patch
fbdev-rename-imacfbtxt-to-efifbtxt-and-change-imacfb-to-efifb.patch
drivers-char-amiserialc-add-missing-local_irq_restore.patch
drivers-gpio-timbgpioc-add-missing-unlock.patch
omap-hsmmc-fix-a-bug-in-card-remove-scenario.patch
initramfs-prevent-buffer-overflow-when-unpacking-to-rootfs.patch
mxser-spin_lock-=-spin_lock_irq.patch
mxser-spin_lock-=-spin_lock_irq-fix.patch
cciss-unlock-on-error-path.patch
drivers-thermal-thermal_sysc-fix-key-f70f4b50-not-in-data-in-thermal_sys.patch
device_attributes-add-sysfs_attr_init-for-dynamic-attributes.patch
readahead-fix-null-filp-dereference.patch
devmem-handle-class_create-failure.patch
mm-revert-vmscan-get_scan_ratio-cleanup.patch
mb862xxfb-fix-acceleration-module-license.patch
mb862xxfb-update-valentins-email-address.patch
raw-fsync-method-is-now-required.patch
bsdacct-use-del_timer_sync-in-acct_exit_ns.patch
fbdev-fix-kconfig-breakage-in-drivers-video.patch
ratelimit-annotate-___ratelimit.patch
ratelimit-annotate-___ratelimit-fix.patch
kernelh-fix-wrong-usage-of-__ratelimit.patch
ratelimit-fix-the-return-value-when-__ratelimit-fails-to-acquire-the-lock.patch
pagemap-fix-pfn-calculation-for-hugepage-v3.patch
memcg-fix-race-in-file_mapped-accounting.patch
rtc-mxc-multiple-fixes-in-rtc-mxc-probe-method.patch
rtc-mxc-multiple-fixes-in-rtc-mxc-probe-method-checkpatch-fixes.patch
frv-hide-uncached_access-when-pgprot_noncached-is-not-defined.patch
frv-fix-kernel-user-segment-handling-in-nommu-mode.patch
frv-extend-gdbstub-to-support-more-features-of-gdb.patch
frv-extend-gdbstub-to-support-more-features-of-gdb-fix.patch
fs-cache-order-the-debugfs-stats-correctly.patch
it8761e_gpio-fix-bug-in-gpio-numbering.patch
power_meter-acpi_device_class-power_meter_resource-too-long.patch
block-elevatorc-fix-block-elevatorc-elevator_get-off-by-one-error.patch
drivers-base-cpuc-fix-the-output-from-sys-devices-system-cpu-offline.patch
intel-agpc-fix-crash-when-accessing-nonexistent-gtt-entries-in-i915.patch
intel-agpc-fix-crash-when-accessing-nonexistent-gtt-entries-in-i915-checkpatch-fixes.patch
inotify-dont-leak-user-struct-on-inotify-release.patch
oprofile-remove-double-ring-buffering.patch
arch-powerpc-kernel-vioc-add-missing-unlock.patch
drivers-macintosh-macio-adbc-add-missing-unlock.patch
sched-prevent-compiler-from-optimising-sched_avg_update-loop.patch
dpt_i20-several-use-after-free-issues.patch
scsi-be2iscsi-fix-lock-imbalance.patch
scsi-lpfc-fix-lock-imbalances.patch
scsi-qla2xxx-fix-lock-imbalance.patch
drivers-scsi-qla2xxx-qla_attrc-add-missing-unlock.patch
keys-dont-need-to-use-rcu-in-keyring_read-as-semaphore-is-held.patch
drivers-serial-pmac_zilogc-add-missing-unlock.patch
drivers-usb-gadget-s3c-hsotgc-add-missing-unlock.patch
x86-handle-overlapping-mptables.patch
acerhdf-add-new-bios-versions.patch
drivers-acpi-use-kasprintf.patch
drivers-acpi-use-kasprintf-fix.patch
sbshc-acpi_device_class-smbus_host_controller-too-long.patch
acpi_pad-processor_aggregator-name-too-long.patch
acpi-map-pxms-to-low-node-ids.patch
arch-x86-kernel-hpetc-fix-bug-in-rtc-emulation.patch
x86-apic-ack-all-pending-irqs-when-crashed-on-kexec-v5.patch
arch-x86-pci-use-kasprintf.patch
x86-nosmp-command-line-option-should-force-the-system-into-up-mode.patch
arch-x86-kernel-setupcl-phoenix-bios-fixup-is-needed-on-dell-inspiron-mini-1012.patch
agp-amd64-fix-pci-reference-leaks.patch
arm-convert-proc-cpu-aligment-to-seq_file.patch
arch-arm-plat-pxa-dmac-correct-null-test.patch
arch-arm-include-asm-elfh-forward-declare-the-task-struct.patch
cifs-provide-user-with-a-hint-when-name-resolution-fails.patch
cifs-provide-user-with-a-hint-when-name-resolution-fails-fix.patch
dmaengine-support-for-st-ericssons-dma40-block-v3.patch
dmaengine-dma40-u8500-platform-configuration-v3.patch
powerpc-sky-cpu-redundant-or-incorrect-tests-on-unsigned.patch
arch-powerpc-platforms-pseries-use-kasprintf.patch
gpu-vga_switcheroo-fix-lock-imbalance.patch
drivers-gpu-drm-via-via_videoc-fix-off-by-one-issue.patch
drivers-gpu-drm-radeon-radeon_atombiosc-range-check-issues.patch
drivers-gpu-drm-drm_sysfsc-sysfs-files-error-handling.patch
drivers-gpu-drm-drm_memoryc-fix-check-for-end-of-loop.patch
dib3000mc-reduce-large-stack-usage.patch
dib7000p-reduce-large-stack-usage.patch
dvb-usb-gp8psk-fix-potential-null-derefernce.patch
drivers-media-video-avoid-null-dereference.patch
drivers-media-video-au0828-au0828-videoc-off-by-one-bug.patch
drivers-media-video-zc0301-zc0301_corec-improve-error-handling.patch
drivers-media-video-et61x251-et61x251_corec-improve-error-handling.patch
drivers-media-video-sn9c102-sn9c102_corec-improve-error-handling.patch
cx88-improve-error-handling.patch
ir-keytable-avoid-double-lock.patch
fs-fscache-object-listc-fix-warning-on-32-bit.patch
intel-iommu-use-for_each_set_bit.patch
gpiolib-introduce-chip-addition-removal-notifier.patch
of-gpio-add-support-for-two-stage-registration-for-the-of_gpio_chips.patch
of-gpio-implement-gpiolib-notifier-hooks.patch
of-gpio-implement-gpiolib-notifier-hooks-fix.patch
of-gpio-implement-gpiolib-notifier-hooks-fix-fix2.patch
powerpc-mcu_mpc8349emitx-remove-of-gpio-handling-stuff.patch
gpiolib-cosmetic-improvements-for-error-handling-in-gpiochip_add.patch
timers-introduce-the-concept-of-timer-slack-for-legacy-timers.patch
cpu-timers-simplify-rlimit_cpu-handling.patch
cpu-timers-cleanup-arm_timer.patch
cpu-timers-return-correct-previous-timer-reload-value.patch
cpu-timers-change-sigev_none-timer-implementation.patch
cpu-timers-assure-to-not-iterate-over-all-threads-in-fastpath_timer_check.patch
cpu-timers-optimize-run_posix_cpu_timers.patch
cs5535-clockevt-free-timer-in-irq-setup-error-path.patch
timer-print-function-name-for-timer-callbacks-modifying-preemption-count.patch
time-clean-up-warp_clock.patch
time-clean-up-direct-xtime-usage-in-xen.patch
ntp-make-time_adjust-static.patch
ntp-remove-tickadj.patch
ati_remote-add-some-missing-devices-from-lirc_atiusb.patch
usbtouchscreen-support-bigger-inexio-touchscreens.patch
matrix_keypad-allow-platform-to-disable-key-autorepeat.patch
markup_oops-fix-perlcritic-warnings.patch
led-driver-for-the-soekris-net5501-board.patch
led-driver-for-the-soekris-net5501-board-checkpatch-fixes.patch
led-driver-for-the-soekris-net5501-board-fix-2.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
leds-route-kbd-leds-through-the-generic-leds-layer-leds-input-depends-on-input.patch
leds-route-kbd-leds-through-the-generic-leds-layer-fix.patch
drivers-mfd-pcf50633-corec-off-by-one-issue.patch
mfd-add-support-for-janz-cmod-io-pci-modulbus-carrier-board.patch
can-add-support-for-janz-vmod-ican3-intelligent-can-module.patch
gpio-add-support-for-janz-vmod-ttl-digital-io-module.patch
gpio-add-support-for-janz-vmod-ttl-digital-io-module-fix.patch
hrtimer-provide-schedule_hrtimeout-for-wallclock.patch
ipc-mqueuec-let-message-queue-timeout-use-hrtimers.patch
ipc-mqueuec-let-message-queue-timeout-use-hrtimers-checkpatch-fixes.patch
bitops-rename-for_each_bit-to-for_each_set_bit-mtd.patch
mtd-nandsim-fix-typo-struct-nandsin_geometry.patch
mtd-nand-remove-stray-endchoice-from-kconfig-help-text.patch
ntfs-clean-up-ntfs_attr_extend_initialized.patch
ntfs-use-add_to_page_cache_lru.patch
score-fix-dereference-of-null-pointer-in-local_flush_tlb_page.patch
x25-attempts-to-negotiate-invalid-throughput.patch
3x59x-fix-pci-resource-management.patch
mbp_nvidia_bl-add-support-for-older-macbookpro-and-macbook-61.patch
backlight-backlight_device_register-return-err_ptr.patch
backlight-add-s6e63m0-amoled-lcd-panel-driver.patch
backlight-add-s6e63m0-amoled-lcd-panel-driver-checkpatch-fixes.patch
sunrpc-use-formatting-of-module-name-in-sunrpc.patch
serial-two-branches-the-same-in-timbuart_set_mctrl.patch
serial-timbuart-make-sure-last-byte-is-sent-when-port-is-closed.patch
serial-timbuart-make-sure-last-byte-is-sent-when-port-is-closed-fix.patch
serial-8250_pnp-add-fujitsu-wacom-device.patch
kernel-irq-managec-add-raise_threaded_irq.patch
kernel-irq-managec-add-raise_threaded_irq-fix.patch
max3100-move-to-threaded-interrupt.patch
max3100-add-console-support-for-max3100.patch
max3100-to_max3100_port-small-style-fixes.patch
max3100-to_max3100_port-small-style-fixes-fix.patch
serial-add-driver-for-the-altera-jtag-uart.patch
serial-add-driver-for-the-altera-uart.patch
serial-add-driver-for-the-altera-uart-update.patch
s390-potential-buffer-overflow.patch
kernel-irq-procc-expose-the-irq_desc-node-in-proc-irq.patch
lockdep-add-novalidate-class-for-dev-mutex-conversion.patch
rcu-remove-init_rcu_head-rcu_head_init-rcu_head.patch
scsi-add-__init-__exit-macros-to-ibmvstgtc.patch
drivers-scsi-fnic-fnic_scsic-clean-up.patch
drivers-scsi-gdthc-fix-buffer-overflow.patch
drivers-scsi-lpfc-lpfc_vportc-fix-read-buffer-overflow.patch
osst-fix-read-buffer-overflow.patch
gdth-unmap-ccb_phys-when-scsi_add_host-fails-in-gdth_eisa_probe_one.patch
drivers-scsi-libsas-use-sam_good.patch
ncr5380-bit-mr_dma_mode-set-twice-in-ncr5380_transfer_dma.patch
drivers-scsi-remove-unnecessary-null-test.patch
drivers-message-move-dereference-after-null-test.patch
scsi-pmcraid-redundant-check-in-pmcraid_check_ioctl_buffer.patch
mpt-fusion-convert-to-seq_file.patch
g_ncr5380-remove-misleading-pnp-error-message.patch
g_ncr5380-fix-broken-mmio-compilation.patch
g_ncr5380-fix-missing-pnp_device_detach-and-scsi_unregister-on-rmmod.patch
dc395x-decrease-iteration-for-tag_number-of-max_command-in-start_scsi.patch
drivers-scsi-correct-the-size-argument-to-kmalloc.patch
scsi-remove-superfluous-null-pointer-check-from-scsi_kill_request.patch
mpt2sas-fix-confusion-in-_scsih_sas_device_status_change_event.patch
scsi-sdc-quiet-all-sparse-noise.patch
drivers-scsi-bfa-bfad_imc-eliminate-useless-code.patch
lpfc-positive-error-return-into-negative.patch
drivers-scsi-qla2xxx-qla_osc-fix-continuation-line-formats.patch
scsi-bfa-correct-onstack-wait_queue_head-declaration.patch
mptscsih-fix-first-line-of-kernel-doc-for-a-few-functions.patch
drivers-scsi-chc-dont-use-vprintk-as-macro.patch
iscsi-change-to.patch
scsi-fix-convert-scsi_scanc-kernel-doc.patch
scsi-update-drivers-tools-url-references.patch
bfa-wrong-fcport-h2i-message-tested-in-bfa_fcport_isr.patch
wd7000-typo-spin_unlock_irq-=-spin_lock_irq.patch
fs-splicec-fix-mapping_gfp_mask-usage.patch
iio-iio_get_new_idr_val-return-negative-value-on-failure.patch
iio-iio_get_new_idr_val-return-negative-value-on-failure-fix.patch
vt6655-cgi-csi-confusion-in-device_ioctl.patch
drivers-staging-otus-hal-hpanic-using-the-wrong-variable.patch
drivers-staging-comedi-drivers-dt2801c-off-by-one-issue.patch
musb-potential-use-after-free.patch
kaweth-new-usb-id-07c9-b010-allied-telesyn-at-usb10.patch
usb-fix-serial-build-when-sysrq-is-disabled.patch
usb-oxu210hp-release-spinlock-on-error-path.patch
9p-return-on-mutex_lock_interruptible.patch
9p-saving-negative-to-unsigned-char.patch
vfs-fix-vfs_rename_dir-for-fs_rename_does_d_move-filesystems.patch
vfs-improve-comment-describing-fget_light.patch
ecryptfs-another-lockdep-issue.patch
vfs-o_-bit-numbers-uniqueness-check.patch
vfs-o_-bit-numbers-uniqueness-check-update.patch
vfs-o_-bit-numbers-uniqueness-check-fix.patch
vfs-o_-bit-numbers-uniqueness-check-fix-2.patch
vfs-introduce-fmode_neg_offset-for-allowing-negative-f_pos.patch
vfs-clarify-that-nonseekable_open-will-never-fail.patch
watchdog-docs-fix-use-of-wdioc_setoptions-ioctl.patch
xtensa-convert-to-asm-generic-hardirqh.patch
xtensa-includecheck-fix-vectorss.patch
xtensa-fix-unnecessary-setting-of-xtime.patch
modpost-support-objects-with-more-than-64k-sections.patch
mm.patch
page-allocator-reduce-fragmentation-in-buddy-allocator-by-adding-buddies-that-are-merging-to-the-tail-of-the-free-lists.patch
sparsemem-on-no-vmemmap-path-put-mem_map-on-node-high-too.patch
shmem-remove-redundant-code.patch
define-madv_hugepage.patch
mm-remove-return-value-of-putback_lru_pages.patch
mempolicy-remove-redundant-code.patch
oom-filter-tasks-not-sharing-the-same-cpuset.patch
oom-sacrifice-child-with-highest-badness-score-for-parent.patch
oom-select-task-from-tasklist-for-mempolicy-ooms.patch
oom-remove-special-handling-for-pagefault-ooms.patch
oom-badness-heuristic-rewrite.patch
oom-deprecate-oom_adj-tunable.patch
oom-replace-sysctls-with-quick-mode.patch
oom-avoid-oom-killer-for-lowmem-allocations.patch
oom-remove-unnecessary-code-and-cleanup.patch
oom-default-to-killing-current-for-pagefault-ooms.patch
oom-avoid-race-for-oom-killed-tasks-detaching-mm-prior-to-exit.patch
oom-select_bad_process-check-pf_kthread-instead-of-mm-to-skip-kthreads.patch
oom-select_bad_process-pf_exiting-check-should-take-mm-into-account.patch
oom-introduce-find_lock_task_mm-to-fix-mm-false-positives.patch
oom-oom_forkbomb_penalty-move-thread_group_cputime-out-of-task_lock.patch
oom-hold-tasklist_lock-when-dumping-tasks.patch
oom-give-current-access-to-memory-reserves-if-it-has-been-killed.patch
oom-avoid-sending-exiting-tasks-a-sigkill.patch
oom-clean-up-oom_kill_task.patch
oom-clean-up-oom_badness.patch
mempolicy-remove-case-mpol_interleave-from-policy_zonelist.patch
mempolicy-remove-redundant-check.patch
mempolicy-dont-call-mpol_set_nodemask-when-no_context.patch
mempolicy-lose-unnecessary-loop-variable-in-mpol_parse_str.patch
mempolicy-rename-policy_types-and-cleanup-initialization.patch
mempolicy-factor-mpol_shared_policy_init-return-paths.patch
mempolicy-document-cpuset-interaction-with-tmpfs-mpol-mount-option.patch
mincore-cleanups.patch
mincore-break-do_mincore-into-logical-pieces.patch
mincore-pass-ranges-as-startend-address-pairs.patch
mincore-do-nested-page-table-walks.patch
pagemap-add-ifdefs-config_hugetlb_page-on-code-walking-hugetlb-vma.patch
mm-default-to-node-zonelist-ordering-when-nodes-have-only-lowmem.patch
oom-move-sysctl-declarations-to-oomh.patch
fs-writebackc-bitfields-should-be-unsigned.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
nommu-allow-private-mappings-of-read-only-devices.patch
errh-add-__must_check-to-error-pointer-handlers.patch
kernel-user-remove-unreachable-code.patch
endian-define-__byte_order.patch
bitops-optimize-hweight-by-making-use-of-compile-time-evaluation.patch
x86-add-optimized-popcnt-variants.patch
hangcheck-timer-fix-x86_32-bugs.patch
improve-sys_personality-for-compat-architectures.patch
vsprintfc-use-noinline_for_stack.patch
dynamic_debug-small-cleanup-in-ddebug_proc_write.patch
lib-hexdumpc-reduce-stack-variable-size-and-cleanups.patch
firmware-loader-use-statically-initialized-data-attribute.patch
firmware-loader-use-statically-initialized-data-attribute-fix.patch
firmware-loader-use-statically-initialized-data-attribute-fix-fix.patch
davinci-mmc-pass-number-of-sg-segments-as-platform-data.patch
mmc-omap-add-support-for-16-bit-and-32-bit-registers.patch
sdhci-implement-cap_clock_base_broken-quirk.patch
sdhci-pltfm-implement-platform-data-passing.patch
sdhci-pltfm-do-not-print-errors-in-case-of-an-extended-iomem-size.patch
davinci-mmc-add-a-function-to-control-reset-state-of-the-controller.patch
davinci-mmc-updates-to-suspend-resume-implementation.patch
davinci-mmc-updates-to-suspend-resume-implementation-checkpatch-fixes.patch
checkpatch-add-check-for-too-short-kconfig-descriptions.patch
checkpatch-add-check-for-too-short-kconfig-descriptions-checkpatch-fixes.patch
hwmon-driver-for-ti-tmp102-temperature-sensor.patch
hwmon-driver-for-ti-tmp102-temperature-sensor-fix.patch
xen-fix-build-when-sysrq-is-disabled.patch
s3c-rtc-driver-add-support-for-s3c64xx.patch
rtc-mxc-remove-unnecessary-clock-source-for-rtc-subsystem.patch
gpio-add-interrupt-handling-capability-to-max732x.patch
gpiolib-make-names-array-and-its-values-const.patch
gpiolib-make-names-array-and-its-values-const-fix.patch
gpiolib-a-gpio-is-unsigned-so-use-%u-to-print-it.patch
gpiolib-document-that-names-can-contain-printk-format-specifiers.patch
fbdev-bfin-lq035q1-fb-respect-new-ppi-mode-platform-field.patch
sis-strcpy-=-strlcpy.patch
fbdev-section-cleanup-in-arcfb.patch
fbdev-section-cleanup-in-hgafb.patch
fbdev-section-cleanup-in-vfb.patch
fbdev-section-cleanup-in-vga16fb.patch
fbdev-section-cleanup-in-w100fb.patch
cobalt_lcdfb-fix-section-mismatch-cobalt_lcdfb_fix.patch
auxdisplay-section-cleanup-in-cfag12864bfb-driver.patch
ext3-fixup-rb_root-initializations-to-use-rb_root.patch
hfsplus-identify-journal-info-block-in-volume-header.patch
hfsplus-fix-journal-detection.patch
memcg-oom-wakeup-filter.patch
memcg-oom-wakeup-filter-update.patch
memcg-oom-notifier.patch
memcg-oom-notifier-update.patch
memcg-oom-kill-disable-and-oom-status.patch
memcg-oom-kill-disable-and-oom-status-update.patch
memcg-oom-kill-disable-and-oom-status-update-checkpatch-fixes.patch
kmod-add-init-function-to-usermodehelper.patch
exec-replace-call_usermodehelper_pipe-with-use-of-umh-init-function-and-resolve-limit.patch
umh-creds-convert-call_usermodehelper_keys-to-use-subprocess_info-init.patch
umh-creds-kill-subprocess_info-cred-logic.patch
call_usermodehelper-no-need-to-unblock-signals.patch
wait_for_helper-sigchld-from-user-space-can-lead-to-use-after-free.patch
call_usermodehelper-simplify-fix-umh_no_wait-case.patch
call_usermodehelper-umh_wait_exec-ignores-kernel_thread-failure.patch
coredump-factor-out-the-not-ispipe-file-checks.patch
coredump-cleanup-ispipe-code.patch
coredump-factor-out-put_cred-calls.patch
coredump-shift-down_writemmap_sem-into-coredump_wait.patch
exit-exit_notify-can-trust-signal-notify_count-0.patch
exit-change-zap_other_threads-to-count-sub-threads.patch
exit-avoid-sig-count-in-de_thread-__exit_signal-synchronization.patch
exit-avoid-sig-count-in-__exit_signal-to-detect-the-group-dead-case.patch
posix-cpu-timers-avoid-task-signal-=-null-checks.patch
ia64-ptrace_attach_sync_user_rbs-avoid-task-signal-=-null-checks.patch
fork-exit-move-tty_kref_put-outside-of-__cleanup_signal.patch
signals-make-task_struct-signal-immutable-refcountable.patch
signals-clear-signal-tty-when-the-last-thread-exits.patch
signals-clear-signal-tty-when-the-last-thread-exits-fix.patch
signals-kill-the-awful-task_rq_unlock_wait-hack.patch
exit-__exit_signal-use-thread_group_leader-consistently.patch
kill-the-obsolete-thread_group_cputime_free-and-taskstats_tgid_init-helpers.patch
exit-move-taskstats_tgid_free-from-__exit_signal-to-free_signal_struct.patch
check_unshare_flags-kill-the-bogus-clone_sighand-sig-count-check.patch
proc-get_nr_threads-doesnt-need-siglock-any-longer.patch
proc-make-collect_sigign_sigcatch-rcu-safe.patch
proc-make-task_sig-lockless.patch
proc_sched_show_task-use-get_nr_threads.patch
keyctl_session_to_parent-use-thread_group_empty-to-check-singlethreadness.patch
proc-turn-signal_struct-count-into-int-nr_threads.patch
proc-turn-signal_struct-count-into-int-nr_threads-checkpatch-fixes.patch
proc-cleanup-remove-unused-assignments.patch
cpu-hotplug-introduce-cpu_notify-__cpu_notify-cpu_notify_nofail.patch
cpu-hotplug-return-better-errno-on-cpu-hotplug-failure.patch
notifier-change-notifier_from_errno0-to-return-notify_ok.patch
x86-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
topology-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
kernel-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
slab-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
iucv-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
ehca-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
s390-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
md-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
fault-injection-add-cpu-notifier-error-injection-module.patch
fault-injection-add-cpu-notifier-error-injection-module-fix.patch
cpuhotplug-do-not-need-cpu_hotplug_begin-when-config_hotplug_cpu=n.patch
ipmi-raise-precedence-of-pnp-based-discovery-mechanisms-acpi-pci.patch
ipmi-convert-tracking-of-the-acpi-device-pointer-to-a-pnp-device.patch
ipmi-update-driver-to-use-dev_printk-and-its-constructs.patch
char-drivers-ram-oops-panic-logger.patch
char-drivers-ram-oops-panic-logger-update.patch
drivers-char-ppdevc-use-kasprintf.patch
delay-accounting-re-implement-c-for-getdelaysc-to-report-information-on-a-target-command.patch
delay-accounting-re-implement-c-for-getdelaysc-to-report-information-on-a-target-command-checkpatch-fixes.patch
delayacct-align-to-8-byte-boundary-on-64-bit-systems.patch
lib-random32-export-pseudo-random-number-generator-for-modules.patch
drivers-edac-introduce-missing-kfree.patch
edac-add-__init-to-i7core_xeon_pci_fixup.patch
ssb-add-dma_dev-to-ssb_device-structure.patch
b43legacy-replace-the-ssb_dma-api-with-the-generic-dma-api.patch
b43-replace-the-ssb_dma-api-with-the-generic-dma-api.patch
b44-replace-the-ssb_dma-api-with-the-generic-dma-api.patch
ssb-remove-the-ssb-dma-api.patch
panic-allow-taint-flag-for-warnings-to-be-changed-from-taint_warn.patch
panic-allow-taint-flag-for-warnings-to-be-changed-from-taint_warn-checkpatch-fixes.patch
panic-add-taint-flag-taint_firmware_workaround-i.patch
pci-dmar-combine-the-bios-dmar-table-warning-messages.patch
pci-dmar-tone-down-warnings-about-invalid-bios-dmar-tables.patch
kfifo-kfifo_is_fullempty-should-return-bools-not-ints.patch
time-kill-off-config_generic_time.patch
asm-generic-remove-isa_dma_threshold-in-scatterlisth.patch
asm-generic-add-need_sg_dma_length-to-define-sg_dma_len.patch
asm-generic-add-need_sg_dma_length-to-define-sg_dma_len-fix.patch
powerpc-use-asm-generic-scatterlisth.patch
arm-use-asm-generic-scatterlisth.patch
alpha-use-asm-generic-scatterlisth.patch
vfs-add-super-operation-writeback_inodes.patch
vfs-take-2add-set_page_dirty_notag.patch
reiser4-export-remove_from_page_cache.patch
reiser4-export-remove_from_page_cache-fix.patch
reiser4-export-find_get_pages.patch
reiser4.patch
reiser4-writeback_inodes-implementation.patch
reiser4-writeback_inodes-implementation-fix.patch
reiser4-fixup-checkin-checkout-jnodes-for-entd.patch
reiser4-fixups.patch
reiser4-broke.patch
make-sure-nobodys-leaking-resources.patch
journal_add_journal_head-debug.patch
releasing-resources-with-children.patch
make-frame_pointer-default=y.patch
mutex-subsystem-synchro-test-module.patch
mutex-subsystem-synchro-test-module-add-missing-header-file.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
add-debugging-aid-for-memory-initialisation-problems.patch
workaround-for-a-pci-restoring-bug.patch
prio_tree-debugging-patch.patch
single_open-seq_release-leak-diagnostics.patch
add-a-refcount-check-in-dput.patch
getblk-handle-2tb-devices.patch
getblk-handle-2tb-devices-fix.patch
notify_change-callers-must-hold-i_mutex.patch

2010-04-06 05:05:47

by Randy Dunlap

[permalink] [raw]

Subject: [PATCH mmotm] hid-picolcd: depends on LCD_CLASS_DEVICE

From: Randy Dunlap <[email protected]>

HID_PICOLCD should depend on LCD_CLASS_DEVICE, otherwise the
build fails when HID_PICOLCD=y and LCD_CLASS_DEVICE=m:

hid-picolcd.c:(.text+0x84523f): undefined reference to `lcd_device_unregister'
hid-picolcd.c:(.text+0x8478ab): undefined reference to `lcd_device_register'
hid-picolcd.c:(.text+0x84c15f): undefined reference to `lcd_device_unregister'

Signed-off-by: Randy Dunlap <[email protected]>
---
drivers/hid/Kconfig | 1 +
1 file changed, 1 insertion(+)

--- mmotm-2010-0405-1609.orig/drivers/hid/Kconfig
+++ mmotm-2010-0405-1609/drivers/hid/Kconfig
@@ -265,6 +265,7 @@ config HID_PETALYNX
config HID_PICOLCD
tristate "PicoLCD (graphic version)"
depends on USB_HID
+ depends on LCD_CLASS_DEVICE
select FB_DEFERRED_IO if FB
select FB_SYS_FILLRECT if FB
select FB_SYS_COPYAREA if FB

2010-04-06 08:40:12

by Jiri Kosina

[permalink] [raw]

Subject: Re: [PATCH mmotm] hid-picolcd: depends on LCD_CLASS_DEVICE

[ adding Bruno to CC ]

On Mon, 5 Apr 2010, Randy Dunlap wrote:

> From: Randy Dunlap <[email protected]>
>
> HID_PICOLCD should depend on LCD_CLASS_DEVICE, otherwise the
> build fails when HID_PICOLCD=y and LCD_CLASS_DEVICE=m:
>
> hid-picolcd.c:(.text+0x84523f): undefined reference to `lcd_device_unregister'
> hid-picolcd.c:(.text+0x8478ab): undefined reference to `lcd_device_register'
> hid-picolcd.c:(.text+0x84c15f): undefined reference to `lcd_device_unregister'
>
> Signed-off-by: Randy Dunlap <[email protected]>
> ---
> drivers/hid/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> --- mmotm-2010-0405-1609.orig/drivers/hid/Kconfig
> +++ mmotm-2010-0405-1609/drivers/hid/Kconfig
> @@ -265,6 +265,7 @@ config HID_PETALYNX
> config HID_PICOLCD
> tristate "PicoLCD (graphic version)"
> depends on USB_HID
> + depends on LCD_CLASS_DEVICE
> select FB_DEFERRED_IO if FB
> select FB_SYS_FILLRECT if FB
> select FB_SYS_COPYAREA if FB

Thanks Randy. We'll have to take care of the other dependencies as well
though (CONFIG_LCD_CLASS_DEVICE, CONFIG_LEDS_CLASS).

--
Jiri Kosina
SUSE Labs, Novell Inc.

2010-04-06 08:56:43

by Bruno Prémont

[permalink] [raw]

Subject: Re: [PATCH mmotm] hid-picolcd: depends on LCD_CLASS_DEVICE

On Tue, 6 Apr 2010 10:40:06 +0200 Jiri Kosina <[email protected]> wrote:
>
> [ adding Bruno to CC ]
>
> On Mon, 5 Apr 2010, Randy Dunlap wrote:
>
> > From: Randy Dunlap <[email protected]>
> >
> > HID_PICOLCD should depend on LCD_CLASS_DEVICE, otherwise the
> > build fails when HID_PICOLCD=y and LCD_CLASS_DEVICE=m:
> >
> > hid-picolcd.c:(.text+0x84523f): undefined reference to `lcd_device_unregister'
> > hid-picolcd.c:(.text+0x8478ab): undefined reference to `lcd_device_register'
> > hid-picolcd.c:(.text+0x84c15f): undefined reference to `lcd_device_unregister'

That is weird, the

#if defined(CONFIG_LCD_CLASS_DEVICE) || defined(CONFIG_LCD_CLASS_DEVICE_MODULE)
feature support code
#else
empty stubs
#endif

blocks should have prevented LCD_CLASS support from being built if it
was not enabled in configuration.

Do you have the .config matching your build?

When I did my test-build with LCD support enabled/disabled I didn't get
any linker errors as those mentioned above.

Thanks,
Bruno

> > Signed-off-by: Randy Dunlap <[email protected]>
> > ---
> > drivers/hid/Kconfig | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > --- mmotm-2010-0405-1609.orig/drivers/hid/Kconfig
> > +++ mmotm-2010-0405-1609/drivers/hid/Kconfig
> > @@ -265,6 +265,7 @@ config HID_PETALYNX
> > config HID_PICOLCD
> > tristate "PicoLCD (graphic version)"
> > depends on USB_HID
> > + depends on LCD_CLASS_DEVICE
> > select FB_DEFERRED_IO if FB
> > select FB_SYS_FILLRECT if FB
> > select FB_SYS_COPYAREA if FB
>
> Thanks Randy. We'll have to take care of the other dependencies as well
> though (CONFIG_LCD_CLASS_DEVICE, CONFIG_LEDS_CLASS).
>

2010-04-06 15:28:58

by Jiri Kosina

On Thu, Apr 08, 2010 at 07:57:28PM -0400, [email protected] wrote:
> On Mon, 05 Apr 2010 16:09:45 PDT, [email protected] said:
> > The mm-of-the-moment snapshot 2010-04-05-16-09 has been uploaded to
> >
> > http://userweb.kernel.org/~akpm/mmotm/
>
> Hit another one. I seem to be on a roll...
>
> Seen in dmesg, happened near end of the initrd..
>
> [ 26.756864]
> [ 26.756866] ===================================================
> [ 26.756869] [ INFO: suspicious rcu_dereference_check() usage. ]
> [ 26.756871] ---------------------------------------------------
> [ 26.756874] fs/proc/array.c:241 invoked rcu_dereference_check() without protection!

Color me confused. I cloned James Toy's git repository at
git://zen-kernel.org/kernel/mmotm.git, and gitk claims that I am on tag
2010-04-05-16-09, which matches the string above. But when I look at
fs/proc/array.c near line 241, I see:

238 static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign,
239 sigset_t *catch)
240 {
241 struct k_sigaction *k;
242 int i;
243
244 k = p->sighand->action;
245 for (i = 1; i <= _NSIG; ++i, ++k) {
246 if (k->sa.sa_handler == SIG_IGN)
247 sigaddset(ign, i);
248 else if (k->sa.sa_handler != SIG_DFL)
249 sigaddset(catch, i);
250 }
251 }

It seems unlikely that line 241 generated the above error.

Am I on the wrong version? Or do the git tags not mean what I think
that they mean?

Thanx, Paul

> [ 26.756876]
> [ 26.756877] other info that might help us debug this:
> [ 26.756877]
> [ 26.756879]
> [ 26.756880] rcu_scheduler_active = 1, debug_locks = 0
> [ 26.756883] 2 locks held by pidof/2197:
> [ 26.756884] #0: (&p->lock){+.+.+.}, at: [<ffffffff810f4c2a>] seq_read+0x3a/0x42d
> [ 26.756894] #1: (&(&sighand->siglock)->rlock){......}, at: [<ffffffff81047eff>] lock_task_sighand+0x79/0xcf
> [ 26.756903]
> [ 26.756903] stack backtrace:
> [ 26.756906] Pid: 2197, comm: pidof Not tainted 2.6.34-rc3-mmotm0405 #3
> [ 26.756909] Call Trace:
> [ 26.756914] [<ffffffff810638c5>] lockdep_rcu_dereference+0xaa/0xb2
> [ 26.756919] [<ffffffff8112ed88>] collect_sigign_sigcatch+0x37/0xa0
> [ 26.756923] [<ffffffff8112f066>] do_task_stat+0x275/0x837
> [ 26.756927] [<ffffffff81063f83>] ? mark_held_locks+0x52/0x70
> [ 26.756931] [<ffffffff810af6be>] ? get_page_from_freelist+0x390/0x5ab
> [ 26.756935] [<ffffffff81062e7b>] ? register_lock_class+0x1e/0x325
> [ 26.756938] [<ffffffff8106421a>] ? trace_hardirqs_on+0xd/0xf
> [ 26.756942] [<ffffffff810af742>] ? get_page_from_freelist+0x414/0x5ab
> [ 26.756946] [<ffffffff81063d32>] ? mark_lock+0x2d/0x22c
> [ 26.756949] [<ffffffff81063d32>] ? mark_lock+0x2d/0x22c
> [ 26.756953] [<ffffffff81064fe7>] ? __lock_acquire+0x391/0xcfc
> [ 26.756956] [<ffffffff810b006f>] ? __alloc_pages_nodemask+0x796/0x823
> [ 26.756961] [<ffffffff810d4e60>] ? ____cache_alloc+0x10a/0x5cb
> [ 26.756964] [<ffffffff810d4e60>] ? ____cache_alloc+0x10a/0x5cb
> [ 26.756969] [<ffffffff8159f84c>] ? sub_preempt_count+0x35/0x49
> [ 26.756973] [<ffffffff8112f637>] proc_tgid_stat+0xf/0x11
> [ 26.756977] [<ffffffff8112c005>] proc_single_show+0x57/0x74
> [ 26.756980] [<ffffffff810f4ca1>] ? seq_read+0xb1/0x42d
> [ 26.756983] [<ffffffff810f4dc3>] seq_read+0x1d3/0x42d
> [ 26.756988] [<ffffffff810da357>] vfs_read+0xe0/0x140
> [ 26.756991] [<ffffffff810da46d>] sys_read+0x45/0x69
> [ 26.756996] [<ffffffff810026eb>] system_call_fastpath+0x16/0x1b
> [ 26.788544] dracut: Switching root
>

2010-04-10 03:23:10

On 04/09, Paul E. McKenney wrote:
>
> > Oleg, looks like proc-make-collect_sigign_sigcatch-rcu-safe.patch is the
> > offender here, it added the line that causes the whinge.
>
> If collect_sigign_sigcatch() is OK to call by updaters as well as
> readers, we need something like:
>
> struct sighand_struct *sighand;
>
> sighand = rcu_dereference_check(p->sighand,
> rcu_read_lock_held() ||
> lockdep_is_held(&???));
>
> Where the "???" is replaced with whichever of the two locks is protecting
> updates. My guess would be the sighand lock, but I would not rely on
> my guesses in this case. ;-)

Yes, it should be p->sighand->siglock.

Actually, I was going to change another caller, do_task_stat(), to call
collect_sigign_sigcatch() without ->siglock too, but now I am not sure
when/if this will happen.

OK, thanks, I'll send the patch to make rcu_dereference_check() happy.

While we are here... __exit_signal() does

sighand = rcu_dereference_check(tsk->sighand,
rcu_read_lock_held() ||
lockdep_tasklist_lock_is_held());

What is the point? We know that the single caller must hold tasklist,
otherwise everything is broken. Perhaps it would be better to
use rcu_dereference_raw() ?

In fact, I don't really understand why __exit_signal() needs
rcu_dereference() at all.

Oleg.