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This reverts commit 60cf7ea849e77c8782dee147cfb8c38d1984236e.
This is a temporary workaround for the dropbearkey hang issue in 3.10.
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This reverts commit b3956a896ea57f25cacd74708b8fab611543a81d.
This is a temporary workaround for the dropbearkey hang issue in 3.10.
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We don't have 'expand' in our userspace so we need to accomplish the
same thing using 'sed', which we do have.
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
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CFLAGS was previously hard coded to contain "-I/usr/include/slang" to
work with hosts that have "/usr/include/slang/slang.h" as well as hosts
that have "/usr/include/slang.h". This path can cause compile warnings
like:
cc1: warning: '/usr/include/slang' doesn't exists.
or
cc1: warning: include location "/usr/include/slang" is unsafe for
cross-compilation [-Wpoison-system-directories]
Then in some cases warnings become errors if WERROR is enabled hence
build errors.
To fix this issue, we can use -idirafter to downgrade the priority of the
default hard coded path. We can also make the slang include directory
a variable, to allow the user to specify SLANG_INC and set their own
include location. And add a '=' prefix to indicate better
compatibility with sysroot/cross compile cases.
Signed-off-by: Liang Li <liang.li@windriver.com>
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Allow Python.h to find the definitions it needs on mips i.e. get rid
of the error: "_ABIN32" is not defined.
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
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Otherwise we get the sysroot path appended to the build path, not what
we want.
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
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If libperl isn't found, display a message to that effect along with
some hints on how to fix it.
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
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Python has build flags available via pkg-config, use those at
build-time instead.
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
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Large parts of perf use bool variables and assignments.
Rather than depending on transient includes, we force it
by including <stdbool.h> directly in perf.h
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Introduce the ability to limit the limit the uptime of a kernel.
When enabled, these options set a maximum uptime on the kernel, and
(optionally) trigger a clean reboot at expiration.
This functionality may appear to be very close to the softdog watchdog
implementation. It is. But can't be the softdog for several reasons:
- The soft watchdog should be available while this functionality is active
- The duration range is different between this and the softdog. The
timeout available here is potentially quite a bit longer.
- At expiration, there are different expiration requirements and actions.
- This functionality is specific to a particular use case and should
not impact mainline functionality
To cleanly restart the kernel after one minute of uptime, the following
config items would be required:
CONFIG_UPTIME_LIMITED_KERNEL=y
CONFIG_UPTIME_LIMIT_DURATION=1
CONFIG_UPTIME_LIMIT_KERNEL_REBOOT=y
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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This patch adds a new flag field 'FAT_NO_83NAME' for FAT files. When
this flag is set on an 8.3 FAT entry, both the MSDOS and VFAT
filesystems will skip the entry. For MSDOS this makes the file
inaccessible. For VFAT it makes the file only accessible by the long
filename.
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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When this option is enabled this will refuse to create new files with
long names. Accessing existing files with long names will continue to
work.
File names to be created must conform to the 8.3 format. Mixed case is
not allowed in either the prefix or the suffix.
Signed-off-by: Andrew Tridgell <tridge@samba.org>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
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This patch adds a new config option VFAT_FS_NO_DUALNAMES. When
VFAT_FS_NO_DUALNAMES is enabled, VFAT will never create a file with
both a long and a short filename. If a long filename is needed, then
dummy bytes are stored in the 8.3 entry, and the 8.3 entry is marked
as having no short name using the FAT_NO_83NAME flag.
Signed-off-by: Andrew Tridgell <tridge@samba.org>
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Hook cryptodev-linux into the kernel build as a tristate option.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Adding crtypdev 1.6 support from:
http://download.gna.org/cryptodev-linux/cryptodev-linux-1.6.tar.gz
to the kernel source tree as an integrated (versus out of tree) component.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Importing core aufs3 support from:
git://git.code.sf.net/p/aufs/aufs3-standalone aufs3.10
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Integrating aufs-standalone patch from:
git://git.code.sf.net/p/aufs/aufs3-standalone aufs3.10
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Integrating aufs-kbuild patch from:
git://git.code.sf.net/p/aufs/aufs3-standalone aufs3.10
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Importing aufs3-base.patch from:
git://git.code.sf.net/p/aufs/aufs3-standalone aufs3.10
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Integrating aufs-kbuild patch from:
git://git.code.sf.net/p/aufs/aufs3-standalone aufs3.10
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Importing yaffs2 support from git://www.aleph1.co.uk/yaffs2 commit
ID 3a8580e503eed62cebb7b1b4fc3f3f4211010466.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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It is sometimes useful to have a secondary script call the
gen_initramfs_list.sh script. This allows special interpretation
of the initramfs root filesystem or other manipulations to be
injected.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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This is required to avoid warnings like
util/include/linux/compiler.h:8:0: error: "__attribute_const__" redefined [-Werror]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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When jiffies wraps, it must be larger than the value of "updated".
The solution will enhance the condition of "time_after".
Signed-off-by: Li Wang <li.wang@windriver.com>
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From fedora kernel:
commit 6f3e186bc7721c5b24ad90d4a751cccfccd445e6
Author: Josh Boyer <jwboyer@redhat.com>
Date: Fri Aug 5 08:47:23 2011 -0400
Add patch to fix 32bit EFI service mapping (rhbz 726701)
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Some variants of gcc 4.5 have issues with -Os and will
throw:
cc1: error: Do not use -Os option if --enable-target-optspace is not set.
-Os is not required to build a valid boot environment,
so the easiest solution is to simply remove the boot
flag.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Some boards need a smaller size here for
performance reasons, so let's make the value
configurable for those boards.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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If a root filesystem is generated as non-root, one of
the tell tale signs is /dev/console not being a character
file. To save a whole class of questions, let's just test
for the condition and let the user know.
Signed-off-by: Richard Laroque <rlarocqu@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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To an end user who doesn't really know linux that well, a
message like:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
may just look like cryptic computer speak indicating some
deep and complex problem, instead of the reality that they
have a simple local configuration problem. Ideally it would
be nice to not use the misleading "panic" at all, but since
various panic notifiers are historically expecting to be
called when there is no valid rootfs, we can't change that.
So instead, this tries to make it 100% clear to folks of
any background that it is an end user configuration issue.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Allow an nfs root mount to use alternate RPC ports for mountd and nfsd.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
[forward port to 2.6.33+]
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Newer HOSTCC will complain about various stdio fcns because
they are now declared with "warn_unused_return", or because
some initializers aren't filled out with values -- trivially
assign values so we aren't overwhelmed with these warnings
once the kernel build kicks off.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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The meta directory has some files (notably files of size 0) that are
removed by Kbuild's distclean processing. Add wrs to the exclude
list to prevent recursion into wrs.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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The image targets need to trigger after we've build all their
dependencies. To do this we add .NOTPARALLEL and ensure that
the image targets are not built in parallel.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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The image targets need to trigger after we've build all their
dependencies. To do this we add .NOTPARALLEL and ensure that
the image targets are not built in parallel.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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upstream commit da3de6df33f5f42ff9dc40093fbc884f524c9a49 adds
a dependency to all kernel modules to crtsavres. This
ensures that out-of-line register saves/restores work when
CONFIG_CC_OPTIMIZE_FOR_SIZE is enabled.
What it didn't do was ensure that it was built when
modules_prepare was run and hence out of tree powerpc kernel
modules can't properly link.
The fix is to add crtsavres.o to the archprepare rule in
the arch/powerpc/Makefile
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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slbia instruction invalidates the SLB, but there was a hang on the first
instruction that caused an SLB miss exception. Doing a full sync after
the slbia causes the SLB to be in a consistent state for the handling of
the SLB exception.
Signed-off by: Benjamin Walsh <benjamin.walsh@windriver.com>
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SPE registers use the high part bit0~bit31 of E500 GPR0~GPR31.
The unwind information in "eh_frame" section is used during exception
handling and describes register information in the signal frame. But
current unwind information doesn't cover SPE registers, which have
been saved in the signal frame. This patch adds this unwind information
to "eh_frame" section.
SPE registers use register number 1200+N to identify register 'N', but
they start from 113 in unwind column, which is computed from gcc
source code, macro DWARF_REG_TO_UNWIND_COLUMN:
#define FIRST_PSEUDO_REGISTER 114
#define DWARF_REG_TO_UNWIND_COLUMN(r) \
((r) > 1200 ? ((r) - 1200 + FIRST_PSEUDO_REGISTER - 1) : (r))
Signed-off-by: Liming Wang <liming.wang@windriver.com>
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Some warning message result from calling function, smp_processor_id(),
if enable preempt option. So we should do explicitly somewhere when running
preemptible kernel, especially for some cache operation.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
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Add a no-op before tlbp, to avoid DMA cache coherency issues that cause
data loss seen on unmount.
Signed-off-by: <weixing.shi@windriver.com> Weixing Shi
Signed-off-by: <james.perkins@windriver.com> James Perkins
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This works around an unexpected IRQ #255 seen during initial USB host
mass storage device initialization and access.
* wait up to 50us for HCRESET to clear, a slow 4kc needs a longer time.
* leave FSBR enabled so that a slow 4kec/24kec will not be overwhelmed.
Signed-off-by: <weixing.shil@windriver.com> Weixing Shi
Signed-off-by: <bruce.ashfield@windriver.com> Bruce Ashfield
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This patch make that the sys_socketcall system call is available when
EABI is used. The reason is that the user-space applications in both
glibc_std rootfs and glibc_small rootfs are still using sys_socketcall
to request kernel service.
Signed-off-by: Zumeng Chen <zumeng.chen@windriver.com>
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commit cf9b5a26876adb266aa1ba8a0b08669389a2e301 in repository:
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
During the free_pgtables() call all user and modules/pkmap entries are
removed. If a translation fault for the modules/pkmap area occurs before
we switched away from the current pgd, do_translation_fault() would copy
the init_mm pud into the user pud.
There is a small window between pud_clear() and pmd_free_tlb() in
free_pmd_range() where the pud entry was cleared but the TLB has not
been invalidated yet and the CPU may have cached the original (valid)
pud entry in the TLB. A scenario like below would get stuck in
continuous prefetch abort:
1. Current process exiting. The modules pmd entries not populated
2. exit_mmap() -> ... -> pmd_free_tlb()
3. pud_clear() for the 1GB pud containing user stack and modules (no TLB
invalidation yet)
4. Interrupt -> module interrupt routine
5. Level 2 (pmd) translation fault occurs when executing the module
interrupt routine. The CPU previously cached (TLB) the old valid pud
value for the modules area, so we don't get a level 1 translation
fault
6. do_translation fault() copies the pud_k into the pud
7. Linux returns to the faulty instruction. Goes back to 5
At point 7, since the CPU still has the old pud value, it goes back to
point 5 and never gets out of this loop. With this patch, the stale pud
TLB entry is invalidated after point 6 and the subsequent prefetch abort
doesn't occur.
Reported-by: Tony Thompson <Anthony.Thompson@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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This reverts commit aab4f8d490ef8c184d854d5f630438c10406765c, commit
58ad436fcf49810aa006016107f494c9ac9013db upstream, as it causes
problems.
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a903f0865a190f8778c73df1a810ea6e25e5d7cf upstream.
Writing to this file always returns -ENODEV:
# echo 1 > cpuset.memory_pressure_enabled
-bash: echo: write error: No such device
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 91aa11fae1cf8c2fd67be0609692ea9741cdcc43 upstream.
When jbd2_journal_dirty_metadata() returns error,
__ext4_handle_dirty_metadata() stops the handle. However callers of this
function do not count with that fact and still happily used now freed
handle. This use after free can result in various issues but very likely
we oops soon.
The motivation of adding __ext4_journal_stop() into
__ext4_handle_dirty_metadata() in commit 9ea7a0df seems to be only to
improve error reporting. So replace __ext4_journal_stop() with
ext4_journal_abort_handle() which was there before that commit and add
WARN_ON_ONCE() to dump stack to provide useful information.
Reported-by: Sage Weil <sage@inktank.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 215b28a5308f3d332df2ee09ef11fda45d7e4a92 upstream.
Fix this build error:
In file included from fs/exec.c:61:0:
arch/s390/include/asm/tlb.h:35:23: error: expected identifier or '(' before 'unsigned'
arch/s390/include/asm/tlb.h:36:1: warning: no semicolon at end of struct or union [enabled by default]
arch/s390/include/asm/tlb.h: In function 'tlb_gather_mmu':
arch/s390/include/asm/tlb.h:57:5: error: 'struct mmu_gather' has no member named 'end'
Broken due to commit 2b047252d0 ("Fix TLB gather virtual address range
invalidation corner cases").
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
[ Oh well. We had build testing for ppc amd um, but no s390 - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Tom Zanussi
Tom Zanussi
Liang Li
Bruce Ashfield
Andrew Tridgell
Khem Raj
Li Wang
Jim Somerville
Paul Gortmaker
Jason Wessel
Benjamin Walsh
Liming Wang
Tiejun Chen
Weixing Shi
Weixing Shi
Mark Asselstine
Catalin Marinas
Greg Kroah-Hartman
Li Zefan
Jan Kara
Guenter Roeck