29 Mar, 2009
4 commits
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Impact: Kconfig noise reduction, documentation
The default initramfs is so small that it makes no sense to worry
about the additional memory taken by not double-compressing it.
Therefore, don't bug the user with it.Also, improve the description of the option, which was downright
incorrect.Signed-off-by: H. Peter Anvin
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Impact: message formatting
Consistently spell LZMA in all capitals, since it (unlike gzip or
bzip2) is an acronym.Signed-off-by: H. Peter Anvin
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Impact: Kconfig clarification
Make it clear that the CONFIG_RD_* options are about what formats are
supported, not about what formats are actually being used.Signed-off-by: H. Peter Anvin
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Impact: reduce Kconfig noise
Move the options that control possible initramfs/initrd compressions
underneath CONFIG_EMBEDDED. The only impact of leaving these options
set to y is additional code in the init section of the kernel; there
is no reason to burden non-embedded users with these options.Signed-off-by: H. Peter Anvin
27 Mar, 2009
1 commit
24 Mar, 2009
6 commits
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With a sufficiently new compiler and binutils, code which wasn't
previously generating .eh_frame sections has begun to. Certain
architectures (powerpc, in this case) may generate unexpected relocation
formats in response to this, preventing modules from loading.While the new relocation types should probably be handled, revert to the
previous behaviour with regards to generation of .eh_frame sections.(This was reported against Fedora, which appears to be the only distro
doing any building against gcc-4.4 at present: RH bz#486545.)Signed-off-by: Kyle McMartin
Acked-by: Roland McGrath
Cc: Alexandre Oliva
Cc: Sam Ravnborg
Signed-off-by: Linus Torvalds -
Revert the change to the orphan dates of Windows 95, DOS, compression.
Add a new orphan date for OS/2.Signed-off-by: Jody McIntyre
Acked-by: Pavel Machek
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
ucc_geth: Fix oops when using fixed-link support
dm9000: locking bugfix
net: update dnet.c for bus_id removal
dnet: DNET should depend on HAS_IOMEM
dca: add missing copyright/license headers
nl80211: Check that function pointer != NULL before using it
sungem: missing net_device_ops
be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycle
be2net: replenish when posting to rx-queue is starved in out of mem conditions
bas_gigaset: correctly allocate USB interrupt transfer buffer
smsc911x: reset last known duplex and carrier on open
sh_eth: Fix mistake of the address of SH7763
sh_eth: Change handling of IRQ
netns: oops in ip[6]_frag_reasm incrementing stats
net: kfree(napi->skb) => kfree_skb
net: fix sctp breakage
ipv6: fix display of local and remote sit endpoints
net: Document /proc/sys/net/core/netdev_budget
tulip: fix crash on iface up with shirq debug
virtio_net: Make virtio_net support carrier detection
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix crash with /proc/iomem
sparc64: Reschedule KGDB capture to a software interrupt.
sbus: Auto-load openprom module when device opened. -
This patch fixes bug #12208:
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12208
Subject : uml is very slow on 2.6.28 hostThis turned out to be not a scheduler regression, but an already
existing problem in ptrace being triggered by subtle scheduler
changes.The problem is this:
- task A is ptracing task B
- task B stops on a trace event
- task A is woken up and preempts task B
- task A calls ptrace on task B, which does ptrace_check_attach()
- this calls wait_task_inactive(), which sees that task B is still on the runq
- task A goes to sleep for a jiffy
- ...Since UML does lots of the above sequences, those jiffies quickly add
up to make it slow as hell.This patch solves this by not rescheduling in read_unlock() after
ptrace_stop() has woken up the tracer.Thanks to Oleg Nesterov and Ingo Molnar for the feedback.
Signed-off-by: Miklos Szeredi
CC: stable@kernel.org
Signed-off-by: Linus Torvalds
23 Mar, 2009
11 commits
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* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc:
powerpc/mm: Fix Respect _PAGE_COHERENT on classic ppc32 SW TLB load machines -
Grant picked up the wrong version of "Respect _PAGE_COHERENT on classic
ppc32 SW" (commit a4bd6a93c3f14691c8a29e53eb04dc734b27f0db)It was missing the code to actually deal with the fixup of
_PAGE_COHERENT based on the CPU feature.Signed-off-by: Kumar Gala
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commit b1c4a9dddf09fe99b8f88252718ac5b357363dc4 ("ucc_geth: Change
uec phy id to the same format as gianfar's") introduced a regression
in the ucc_geth driver that causes this oops when fixed-link is used:Unable to handle kernel paging request for data at address 0x00000000
Faulting instruction address: 0xc0151270
Oops: Kernel access of bad area, sig: 11 [#1]
TMCUTU
NIP: c0151270 LR: c0151270 CTR: c0017760
REGS: cf81fa60 TRAP: 0300 Not tainted (2.6.29-rc8)
MSR: 00009032 CR: 24024042 XER: 20000000
DAR: 00000000, DSISR: 20000000
TASK = cf81cba0[1] 'swapper' THREAD: cf81e000
GPR00: c0151270 cf81fb10 cf81cba0 00000000 c0272e20 c025f354 00001e80
cf86b08c
GPR08: d1068200 cffffb74 06000000 d106c200 42024042 10085148 0fffd000
0ffc81a0
GPR16: 00000001 00000001 00000000 007ffeb0 00000000 0000c000 cf83f36c
cf83f000
GPR24: 00000030 cf83f360 cf81fb20 00000000 d106c200 20000000 00001e80
cf83f360
NIP [c0151270] ucc_geth_open+0x330/0x1efc
LR [c0151270] ucc_geth_open+0x330/0x1efc
Call Trace:
[cf81fb10] [c0151270] ucc_geth_open+0x330/0x1efc (unreliable)
[cf81fba0] [c0187638] dev_open+0xbc/0x12c
[cf81fbc0] [c0187e38] dev_change_flags+0x8c/0x1b0This patch fixes the issue by removing offending (and somewhat
duplicate) code from init_phy() routine, and changes _probe()
function to use uec_mdio_bus_name().Also, since we fully construct phy_bus_id in the _probe() routine,
we no longer need ->phy_address and ->mdio_bus fields in
ucc_geth_info structure.I wish the patch would be a bit shorter, but it seems like the only
way to fix the issue in a sane way. Luckily, the patch has been
tested with real PHYs and fixed-link, so no further regressions
expected.Reported-by: Joakim Tjernlund
Signed-off-by: Anton Vorontsov
Tested-by: Joakim Tjernlund
Signed-off-by: David S. Miller -
This fixes a locking bug in the dm9000 driver. It calls
request_irq() without setting IRQF_DISABLED ... which is
correct for handlers that support IRQ sharing, since that
behavior is not guaranteed for shared IRQs. However, its
IRQ handler then wrongly assumes that IRQs are blocked.
So the fix just uses the right spinlock primitives in the
IRQ handler.NOTE: this is a classic example of the type of bug which
lockdep currently masks by forcibly setting IRQF_DISABLED
on IRQ handlers that did not request that flag.Signed-off-by: David Brownell
Signed-off-by: David S. Miller -
Signed-off-by: Stephen Rothwell
Signed-off-by: David S. Miller -
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kconfig: improve seed in randconfig
kconfig: fix randconfig for choice blocks -
* 'fix-includes' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: merge the non-MMU and MMU versions of siginfo.h
m68k: use the MMU version of unistd.h for all m68k platforms
m68k: merge the non-MMU and MMU versions of signal.h
m68k: merge the non-MMU and MMU versions of ptrace.h
m68k: use MMU version of setup.h for both MMU and non-MMU
m68k: merge the non-MMU and MMU versions of sigcontext.h
m68k: merge the non-MMU and MMU versions of swab.h
m68k: merge the non-MMU and MMU versions of param.h -
Update all previous incarnations of my email address to the correct one.
Signed-off-by: Gertjan van Wingerde
Signed-off-by: Linus Torvalds -
If ecryptfs_encrypted_view or ecryptfs_xattr_metadata were being
specified as mount options, a NULL pointer dereference of crypt_stat
was possible during lookup.This patch moves the crypt_stat assignment into
ecryptfs_lookup_and_interpose_lower(), ensuring that crypt_stat
will not be NULL before we attempt to dereference it.Thanks to Dan Carpenter and his static analysis tool, smatch, for
finding this bug.Signed-off-by: Tyler Hicks
Acked-by: Dustin Kirkland
Cc: Dan Carpenter
Cc: Serge Hallyn
Signed-off-by: Linus Torvalds -
When allocating the memory used to store the eCryptfs header contents, a
single, zeroed page was being allocated with get_zeroed_page().
However, the size of an eCryptfs header is either PAGE_CACHE_SIZE or
ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE (8192), whichever is larger, and is
stored in the file's private_data->crypt_stat->num_header_bytes_at_front
field.ecryptfs_write_metadata_to_contents() was using
num_header_bytes_at_front to decide how many bytes should be written to
the lower filesystem for the file header. Unfortunately, at least 8K
was being written from the page, despite the chance of the single,
zeroed page being smaller than 8K. This resulted in random areas of
kernel memory being written between the 0x1000 and 0x1FFF bytes offsets
in the eCryptfs file headers if PAGE_SIZE was 4K.This patch allocates a variable number of pages, calculated with
num_header_bytes_at_front, and passes the number of allocated pages
along to ecryptfs_write_metadata_to_contents().Thanks to Florian Streibelt for reporting the data leak and working with
me to find the problem. 2.6.28 is the only kernel release with this
vulnerability. Corresponds to CVE-2009-0787Signed-off-by: Tyler Hicks
Acked-by: Dustin Kirkland
Reviewed-by: Eric Sandeen
Reviewed-by: Eugene Teo
Cc: Greg KH
Cc: dann frazier
Cc: Serge E. Hallyn
Cc: Florian Streibelt
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds -
This fixes a regression introduced when we switched to using the core
pci_set_power_state(). The chip seems to need the state to be written
over and over again until it sticks, so we do that.Note that the code is a bit blunt, without timeout, etc... but that's
pretty much because I put back in there the code exactly as it used to
be before the regression. I still add a call to pci_set_power_state()
at the end so that ACPI gets called appropriately on x86.Signed-off-by: Benjamin Herrenschmidt
Tested-by: Raymond Wooninck
Acked-by: Rafael J. Wysocki
Cc: Jesse Barnes
Cc: Andrew Morton
Signed-off-by: Linus Torvalds
22 Mar, 2009
2 commits
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Signed-off-by: Ilya Yanok
Signed-off-by: David S. Miller -
In two dca files copyright and license headers are missing.
This patch adds them there.Signed-off-by: Maciej Sosnowski
Signed-off-by: David S. Miller
21 Mar, 2009
2 commits
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NL80211_CMD_GET_MESH_PARAMS and NL80211_CMD_SET_MESH_PARAMS handlers
did not verify whether a function pointer is NULL (not supported by
the driver) before trying to call the function. The former nl80211
command is available for unprivileged users, too, so this can
potentially allow normal users to kill networking (or worse..) if
mac80211 is built without CONFIG_MAC80211_MESH=y.Signed-off-by: Jouni Malinen
Signed-off-by: John W. Linville
20 Mar, 2009
11 commits
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Sungem driver only got partially converted to net_device_ops.
Since this could cause bugs, please push this to 2.6.29Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
This is a patch to reconfigure vlan-ids during an i/f down/up cycle
Signed-off-by: Sathya Perla
Signed-off-by: David S. Miller -
This is a patch to replenish the rx-queue when it is in a starved
state (due to out-of-mem conditions)Signed-off-by: Sathya Perla
Signed-off-by: David S. Miller -
The libaio test harness turned up a problem whereby lookup_ioctx on a
bogus io context was returning the 1 valid io context from the list
(harness/cases/3.p).Because of that, an extra put_iocontext was done, and when the process
exited, it hit a BUG_ON in the put_iocontext macro called from exit_aio
(since we expect a users count of 1 and instead get 0).The problem was introduced by "aio: make the lookup_ioctx() lockless"
(commit abf137dd7712132ee56d5b3143c2ff61a72a5faa).Thanks to Zach for pointing out that hlist_for_each_entry_rcu will not
return with a NULL tpos at the end of the loop, even if the entry was
not found.Signed-off-by: Jeff Moyer
Acked-by: Zach Brown
Acked-by: Jens Axboe
Cc: Benjamin LaHaise
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove a source of fput() call from inside IRQ context. Myself, like Eric,
wasn't able to reproduce an fput() call from IRQ context, but Jeff said he was
able to, with the attached test program. Independently from this, the bug is
conceptually there, so we might be better off fixing it. This patch adds an
optimization similar to the one we already do on ->ki_filp, on ->ki_eventfd.
Playing with ->f_count directly is not pretty in general, but the alternative
here would be to add a brand new delayed fput() infrastructure, that I'm not
sure is worth it.Signed-off-by: Davide Libenzi
Cc: Benjamin LaHaise
Cc: Trond Myklebust
Cc: Eric Dumazet
Signed-off-by: Jeff Moyer
Cc: Zach Brown
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Sam Ravnborg says:
"We have several architectures that plays strange games with $(CC) and
$(CROSS_COMPILE).So we need to postpone any use of $(call cc-option..) until we have
included the arch specific Makefile so we try with the correct $(CC)
version."Requested-by: Sam Ravnborg
Signed-off-by: Linus Torvalds -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] make page table upgrade work again
[S390] make page table walking more robust
[S390] Dont check for pfn_valid() in uaccess_pt.c
[S390] ftrace/mcount: fix kernel stack backchain
[S390] topology: define SD_MC_INIT to fix performance regression
[S390] __div64_31 broken for CONFIG_MARCH_G5 -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: fix waitqueue usage in hiddev
HID: fix incorrect free in hiddev -
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: Clear space_info full when adding new devices
Btrfs: Fix locking around adding new space_info -
Nick Piggin noticed this (very unlikely) race between setting a page
dirty and creating the buffers for it - we need to hold the mapping
private_lock until we've set the page dirty bit in order to make sure
that create_empty_buffers() might not build up a set of buffers without
the dirty bits set when the page is dirty.I doubt anybody has ever hit this race (and it didn't solve the issue
Nick was looking at), but as Nick says: "Still, it does appear to solve
a real race, which we should close."Acked-by: Nick Piggin
Signed-off-by: Linus Torvalds -
This makes sure that gcc doesn't try to optimize away wrapping
arithmetic, which the kernel occasionally uses for overflow testing, ie
things likeif (ptr + offset < ptr)
which technically is undefined for non-unsigned types. See
http://bugzilla.kernel.org/show_bug.cgi?id=12597
for details.
Not all versions of gcc support it, so we need to make it conditional
(it looks like it was introduced in gcc-3.4).Reminded-by: Alan Cox
Signed-off-by: Linus Torvalds
19 Mar, 2009
3 commits
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When you compile kernel on Sparc64 with heap memory checking and type
"cat /proc/iomem", you get a crash, because pointers in struct
resource are uninitialized.Most code fills struct resource with zeros, so I assume that it is
responsibility of the caller of request_resource to initialized it,
not the responsibility of request_resource functuion.After 2.6.29 is out, there could be a check for uninitialized fields
added to request_resource to avoid crashes like this.Signed-off-by: Mikulas Patocka
Signed-off-by: David S. Miller -
Otherwise it might interrupt switch_to() midstream and use
half-cooked register window state.Reported-by: Chris Torek
Signed-off-by: David S. Miller
