08 Oct, 2008
3 commits
-
While looking at the code I wondered why we always do:
sync && avg_overlap < migration_cost
Which is a bit odd, since the overlap test was meant to detect sync wakeups
so using it to specialize sync wakeups doesn't make much sense.Hence change the code to do:
sync || avg_overlap < migration_cost
Signed-off-by: Peter Zijlstra
Signed-off-by: Ingo Molnar -
…gent' into sched/core
-
SLOB's ksize calculation was braindamaged and generally harmlessly
underreported the allocation size. But for very small buffers, it could
in fact overreport them, leading code depending on krealloc to overrun
the allocation and trample other data.Signed-off-by: Matt Mackall
Tested-by: Peter Zijlstra
Signed-off-by: Linus Torvalds
07 Oct, 2008
12 commits
-
This reverts commit 135aedc38e812b922aa56096f36a3d72ffbcf2fb, as
requested by Hans Verkuil.It was a patch for 2.6.28 where the BKL was pushed down from v4l core to
the drivers, not for 2.6.27!Requested-by: Hans Verkuil
Cc: Mauro Carvalho Chehab
Signed-of-by: Linus Torvalds -
* Theodore Ts'o (tytso@mit.edu) wrote:
>
> I've been playing with adding some markers into ext4 to see if they
> could be useful in solving some problems along with Systemtap. It
> appears, though, that as of 2.6.27-rc8, markers defined in code which is
> compiled directly into the kernel (i.e., not as modules) don't show up
> in Module.markers:
>
> kvm_trace_entryexit arch/x86/kvm/kvm-intel %u %p %u %u %u %u %u %u
> kvm_trace_handler arch/x86/kvm/kvm-intel %u %p %u %u %u %u %u %u
> kvm_trace_entryexit arch/x86/kvm/kvm-amd %u %p %u %u %u %u %u %u
> kvm_trace_handler arch/x86/kvm/kvm-amd %u %p %u %u %u %u %u %u
>
> (Note the lack of any of the kernel_sched_* markers, and the markers I
> added for ext4_* and jbd2_* are missing as wel.)
>
> Systemtap apparently depends on in-kernel trace_mark being recorded in
> Module.markers, and apparently it's been claimed that it used to be
> there. Is this a bug in systemtap, or in how Module.markers is getting
> built? And is there a file that contains the equivalent information
> for markers located in non-modules code?I think the problem comes from "markers: fix duplicate modpost entry"
(commit d35cb360c29956510b2fe1a953bd4968536f7216)Especially :
- add_marker(mod, marker, fmt);
+ if (!mod->skip)
+ add_marker(mod, marker, fmt);
}
return;
fail:Here is a fix that should take care if this problem.
Thanks for the bug report!
Signed-off-by: Mathieu Desnoyers
Tested-by: "Theodore Ts'o"
CC: Greg KH
CC: David Smith
CC: Roland McGrath
CC: Sam Ravnborg
CC: Wenji Huang
CC: Takashi Nishiie
Signed-off-by: Linus Torvalds -
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
kgdb: call touch_softlockup_watchdog on resume
kgdb, x86: Avoid invoking kgdb_nmicallback twice per NMI -
…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: gart iommu have direct mapping when agp is present too -
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
ide: workaround for bogus gcc warning in ide_sysfs_register_port()
ide-cd: Optiarc DVD RW AD-7200A does play audio
IDE: Fix platform device registration in Swarm IDE driver (v2)
ide-dma: fix ide_build_dmatable() for TRM290
ide-cd: temporary tray close fix -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] IP27: Fix build errors if CONFIG_MAPPED_KERNEL=y
[MIPS] Fix CMP Kconfig configuration and mark as broken. -
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (33 commits)
V4L/DVB (9103): em28xx: HVR-900 B3C0 - fix audio clicking issue
V4L/DVB (9099): em28xx: Add detection for K-WORLD DVB-T 310U
V4L/DVB (9092): gspca: Bad init values for sonixj ov7660.
V4L/DVB (9080): gspca: Add a delay after writing to the sonixj sensors.
V4L/DVB (9075): gspca: Bad check of returned status in i2c_read() spca561.
V4L/DVB (9053): fix buffer overflow in uvc-video
V4L/DVB (9043): S5H1420: Fix size of shadow-array to avoid overflow
V4L/DVB (9037): Fix support for Hauppauge Nova-S SE
V4L/DVB (9029): Fix deadlock in demux code
V4L/DVB (8979): sms1xxx: Add new USB product ID for Hauppauge WinTV MiniStick
V4L/DVB (8978): sms1xxx: fix product name for Hauppauge WinTV MiniStick
V4L/DVB (8967): Use correct XC3028L firmware for AMD ATI TV Wonder 600
V4L/DVB (8963): s2255drv field count fix
V4L/DVB (8961): zr36067: Fix RGBR pixel format
V4L/DVB (8960): drivers/media/video/cafe_ccic.c needs mm.h
V4L/DVB (8958): zr36067: Return proper bytes-per-line value
V4L/DVB (8957): zr36067: Restore the default pixel format
V4L/DVB (8955): bttv: Prevent NULL pointer dereference in radio_open
V4L/DVB (8935): em28xx-cards: Remove duplicate entry (EM2800_BOARD_KWORLD_USB2800)
V4L/DVB (8933): gspca: Disable light frquency for zc3xx cs2102 Kokom.
... -
The atmel-mci driver sometimes fails data transfers like this:
mmcblk0: error -5 transferring data
end_request: I/O error, dev mmcblk0, sector 2749769
end_request: I/O error, dev mmcblk0, sector 2749777It turns out that this might be caused by the BLKR register (which
contains the block size and the number of blocks being transfered) being
initialized too late. This patch moves the initialization of BLKR so
that it contains the correct value before the block transfer command is
sent.This error is difficult to reproduce, but if you insert a long delay
(mdelay(10) or thereabouts) between the calls to atmci_start_command()
and atmci_submit_data(), all transfers seem to fail without this patch,
while I haven't seen any failures with this patch.Reported-by: Hein_Tibosch
Signed-off-by: Haavard Skinnemoen
Signed-off-by: Pierre Ossman
Signed-off-by: Linus Torvalds -
The softlockup watchdog needs to be touched when resuming the from the
kgdb stopped state to avoid the printk that a CPU is stuck if the
debugger was active for longer than the softlockup threshold.Signed-off-by: Jason Wessel
-
Stress-testing KVM's latest NMI support with kgdbts inside an SMP guest,
I came across spurious unhandled NMIs while running the singlestep test.
Looking closer at the code path each NMI takes when KGDB is enabled, I
noticed that kgdb_nmicallback is called twice per event: One time via
DIE_NMI_IPI notification, the second time on DIE_NMI. Removing the first
invocation cures the unhandled NMIs here.Signed-off-by: Jan Kiszka
Signed-off-by: Jason Wessel -
There is a bug in the BIOSes of some HP boxes with AMD Turions which
connects IO-APIC pins with ACPI thermal trip points in such a way that
if the state of the IO-APIC is not as expected by the (buggy) BIOS, the
thermal trip points are set to insanely low values (usually all of them
become 16 degrees Celsius). As a result, thermal throttling kicks in
and knock the system down to its shoes.Unfortunately some of the recent IO-APIC changes made the bug show up.
To prevent this from happening, blacklist machines that are known to be
affected (nx6115 and 6715b in this particular case).This fixes http://bugzilla.kernel.org/show_bug.cgi?id=11516 listed as
a regression from 2.6.26.On my box it was caused by:
commit 691874fa96d6349a8b60f8ea9c2bae52ece79941
Author: Maciej W. Rozycki
Date: Tue May 27 21:19:51 2008 +0100x86: I/O APIC: timer through 8259A second-chance
Signed-off-by: Maciej W. Rozycki
Signed-off-by: Ingo Molnarand the whole story is described in this (huge) thread:
http://marc.info/?l=linux-kernel&m=121358440508410&w=4
Matthew Garrett told us about that happening on the nx6125:
http://marc.info/?l=linux-kernel&m=121396307411930&w=4
and then Maciej analysed the breakage on the basis of a DSDT from the
nx6325:http://marc.info/?l=linux-kernel&m=121401068718826&w=4
As far as the Dmitry's and Jason's boxes are concerned, I recognized the
symptoms and asked them to verify that the blacklisting helped.It appears that the buggy BIOS code has been copy-pasted to the entire
range of machines, for no good reason.Signed-off-by: Rafael J. Wysocki
Tested-by: Dmitry Torokhov
Tested-by: Jason Vas Dias
Signed-off-by: Linus Torvalds
06 Oct, 2008
9 commits
-
css will be initialized by cgroup core.
Signed-off-by: Li Zefan
Acked-by: Peter Zijlstra
Signed-off-by: Ingo Molnar -
Signed-off-by: Ralf Baechle
-
Because sync-r4k.c doesn't build.
Signed-off-by: Ralf Baechle
-
Reported-by: "Steven Noonan"
Suggested-by: "Elias Oltmanns"
Cc: mingo@elte.hu
Signed-off-by: Bartlomiej Zolnierkiewicz -
The Optiarc DVD RW AD-7200A can play audio, but tells it could not.
Signed-off-by: Bodo Eggert
Tested-by: Nick Warne
Received-from: Borislav Petkov
[bart: keep "audio" quirks together]
Signed-off-by: Bartlomiej Zolnierkiewicz -
The Swarm IDE driver uses a release method which is defined in the driver
itself thus potentially oopsable. The simple fix would be to just leak
the device but this patch goes the full length and moves the entire
handling of the platform device in the platform code and retains only
the platform driver code in drivers/ide/mips/swarm.c.Signed-off-by: Ralf Baechle
Cc: "Maciej W. Rozycki"
Acked-by: Sergei Shtylyov
[bart: remove no longer needed BLK_DEV_IDE_SWARM from ide/Kconfig]
Signed-off-by: Bartlomiej Zolnierkiewicz -
Apparently, 'xcount' being 0 does not mean 0 bytes for TRM290; it means 4 bytes,
judging from the code immediately preceding this check. So, we must never try
to "split" the PRD for TRM290.This is probably never hit anyway -- with the DMA buffers aligned to at least
512 bytes and ATAPI DMA not being used for non block I/O commands...Signed-off-by: Sergei Shtylyov
Signed-off-by: Bartlomiej Zolnierkiewicz -
This one fixes http://bugzilla.kernel.org/show_bug.cgi?id=11602.
A more generic fix for drives which cannot autoclose tray will follow.
Signed-off-by: Borislav Petkov
Cc: Jens Axboe
[bart: add an extra parentheses for consistency with the rest of kernel code]
Signed-off-by: Bartlomiej Zolnierkiewicz
05 Oct, 2008
16 commits
-
move init_memory_mapping() out of init_k8_gatt.
for: http://bugzilla.kernel.org/show_bug.cgi?id=11676
2.6.27-rc2 to rc8, apgart fails, iommu=soft works, regressionThis is needed because we need to map the GART aperture even
if the GATT is not initialized.Signed-off-by: Yinghai Lu
Signed-off-by: Ingo Molnar -
Fixed audio clicking problem which could be heard when using analog tv or composite input
Signed-off-by: Wiktor Grebla
Signed-off-by: Douglas Schilling Landgraf
Signed-off-by: Mauro Carvalho Chehab -
Correct firmware type to MTS
Correct audio routing for composite/s-video
Add DVB-T detection.This patch uses the eeprom hash method for detection as the vendor/product
ids are also used for the DIGIVOX_AD. This may be a clone of the same
product. Explanatory text has been added prior to the hask look-up in
anticipation that it may help others.The following has been tested to work:
Analogue TV (PAL-I)
Composite In
DVB-T (UK Crystal Palace)
USB AUDIOThe following has not been tested but probably works:
S-Video InSigned-off-by: Darron Broad
Signed-off-by: Douglas Schilling Landgraf
Signed-off-by: Mauro Carvalho Chehab -
Signed-off-by: Jean-Francois Moine
Signed-off-by: Mauro Carvalho Chehab -
Signed-off-by: Jean-Francois Moine
Signed-off-by: Mauro Carvalho Chehab -
This makes auto gain functional on 04fc:0561.
Signed-off-by: Shane
Signed-off-by: Jean-Francois Moine
Signed-off-by: Mauro Carvalho Chehab -
There is a buffer overflow in drivers/media/video/uvc/uvc_ctrl.c:
INFO: 0xf2c5ce08-0xf2c5ce0b. First byte 0xa1 instead of 0xcc
INFO: Allocated in uvc_query_v4l2_ctrl+0x3c/0x239 [uvcvideo] age=13 cpu=1 pid=4975
...A fixed size 8-byte buffer is allocated, and a variable size field is read
into it; there is no particular bound on the size of the field (it is
dependent on hardware and configuration) and it can overflow [also
verified by inserting printk's.]The patch attempts to size the buffer to the correctly.
Signed-off-by: Andrew Morton
Acked-by: Laurent Pinchart
Signed-off-by: Mauro Carvalho Chehab -
The array size of 'shadow' still needs to be fixed in order to not overflow when reading register 0x00.
Thanks to Oliver Endriss for pointing that out.
Signed-off-by: Patrick Boettcher
Signed-off-by: Mauro Carvalho Chehab -
Different backends have different input busses (saa7146, flexcop).
To reflect that a config-option to the s5h1420-driver was added which makes
the output mode selectable.Furthermore the s5h1420-driver is now doing the same i2c-method as it was done
before adding support for other i2c-users.This patch needs to go into the current release of the kernel, as this driver
is currently broken.(Thanks to Eberhard Kaltenhaeuser for helping out to debug this issue.)
Signed-off-by: Patrick Boettcher
Signed-off-by: Mauro Carvalho Chehab -
The functions dvb_dmxdev_section_callback, dvb_dmxdev_ts_callback,
dvb_dmx_swfilter_packet, dvb_dmx_swfilter_packets, dvb_dmx_swfilter and
dvb_dmx_swfilter_204 may be called from both interrupt and process
context. Therefore they need to be protected by spin_lock_irqsave()
instead of spin_lock().This fixes a deadlock discovered by lockdep.
Signed-off-by: Andreas Oberritter
Signed-off-by: Mauro Carvalho Chehab -
2040:5510 is the same hardware as 2040:5500
Signed-off-by: Michael Krufky
Signed-off-by: Mauro Carvalho Chehab -
Signed-off-by: Michael Krufky
Signed-off-by: Mauro Carvalho Chehab -
The AMD ATI TV Wonder 600 has an XC3028L and *not* an XC3028, so we need to
load the proper firmware to prevent the device from overheating.Signed-off-by: Devin Heitmueller
Signed-off-by: Michael Krufky
Signed-off-by: Mauro Carvalho Chehab -
Fixes videobuf field_count
Signed-off-by: Dean Anderson
Signed-off-by: Mauro Carvalho Chehab -
The zr36067 driver is improperly declaring pixel format RGBP twice,
once as "16-bit RGB LE" and once as "16-bit RGB BE". The latter is
actually RGBR. Fix the code to properly map both pixel formats.Signed-off-by: Jean Delvare
Acked-by: Trent Piepho
Signed-off-by: Mauro Carvalho Chehab -
sparc32 allmodconfig:
drivers/media/video/cafe_ccic.c: In function 'cafe_setup_siobuf':
drivers/media/video/cafe_ccic.c:1192: error: implicit declaration of function 'PAGE_ALIGN'
drivers/media/video/cafe_ccic.c: At top level:
drivers/media/video/cafe_ccic.c:1430: error: variable 'cafe_v4l_vm_ops' has initializer but incomplete type
drivers/media/video/cafe_ccic.c:1431: error: unknown field 'open' specified in initializer
drivers/media/video/cafe_ccic.c:1431: warning: excess elements in struct initializer
drivers/media/video/cafe_ccic.c:1431: warning: (near initialization for 'cafe_v4l_vm_ops')
drivers/media/video/cafe_ccic.c:1432: error: unknown field 'close' specified in initializer
drivers/media/video/cafe_ccic.c:1433: warning: excess elements in struct initializer
drivers/media/video/cafe_ccic.c:1433: warning: (near initialization for 'cafe_v4l_vm_ops')
drivers/media/video/cafe_ccic.c: In function 'cafe_v4l_mmap':
drivers/media/video/cafe_ccic.c:1444: error: 'VM_WRITE' undeclared (first use in this function)
drivers/media/video/cafe_ccic.c:1444: error: (Each undeclared identifier is reported only once
drivers/media/video/cafe_ccic.c:1444: error: for each function it appears in.)
drivers/media/video/cafe_ccic.c:1444: error: 'VM_SHARED' undeclared (first use in this function)
drivers/media/video/cafe_ccic.c:1461: error: 'VM_DONTEXPAND' undeclared (first use in this function)This build breakage is caused by some header file shuffle in linux-next. But
I suggest that this patch be merged ahead of linux-next to avoid bisection
breakage.Signed-off-by: Andrew Morton
Signed-off-by: Mauro Carvalho Chehab
