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Check the block references in the AGF and AGFL headers to make sure
they make sense.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Ensure that the geometry presented in the backup superblocks matches
the primary superblock so that repair can recover the filesystem if
that primary gets corrupted.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Add some helpers to enable us to lock an AG's headers, create btree
cursors for all btrees in that allocation group, and clean up
afterwards.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Add to the btree scrubber the ability to check that the keys and
records are in the right order and actually call out to our record
iterator to do actual checking of the records.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create a function that can check the shape of a btree -- each block
passes basic inspection and all the pointers look ok. In the next patch
we'll add the ability to check the actual keys and records stored within
the btree. Add some helper functions so that we report detailed scrub
errors in a uniform manner in dmesg. These are helper functions for
subsequent patches.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create helper functions and tracepoints to deal with errors while
scrubbing a metadata btree.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create helper functions to record crc and corruption problems, and
deal with any other runtime errors that arise.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create a probe scrubber with id 0. This will be used by xfs_scrub to
probe the kernel's abilities to scrub (and repair) the metadata. We do
this by validating the ioctl inputs from userspace, preparing the
filesystem for a scrub (or a repair) operation, and immediately
returning to userspace. Userspace can use the returned errno and
structure state to decide (in broad terms) if scrub/repair are
supported by the running kernel.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create structures needed to hold scrubbing context and dispatch incoming
commands to the individual scrubbers.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create an ioctl that can be used to scrub internal filesystem metadata.
The new ioctl takes the metadata type, an (optional) AG number, an
(optional) inode number and generation, and a flags argument. This will
be used by the upcoming XFS online scrub tool.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create some helper functions to check that inode pointers point to
somewhere within the filesystem and not at the static AG metadata.
Move xfs_internal_inum and create a directory inode check function.
We will use these functions in scrub and elsewhere.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Refactor the btree block header checks to have an internal function that
returns the address of the failing check without logging errors. The
scrubber will call the internal function, while the external version
will maintain the current logging behavior.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Refactor the btree pointer checks so that we can call them from the
scrub code without logging errors to dmesg. Preserve the existing error
reporting for regular operations.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Create some helper functions to check that a block pointer points
within the filesystem (or AG) and doesn't point at static metadata.
We will use this for scrub.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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For an XFS_IGET_INCORE iget operation, if the inode isn't in the cache,
return ENODATA so that we don't confuse it with the pre-existing ENOENT
cases (inode is in cache, but freed).
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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XFS uses a fixed reference count for certain types of buffers in the
internal LRU cache. These reference counts dictate how aggressively
certain buffers are reclaimed vs. others. While the reference counts
implements priority across different buffer types, all buffers
(other than uncached buffers) are typically cached for at least one
reclaim cycle.
We've had at least one bug recently that has been hidden by a
released buffer sitting around in the LRU. Users hitting the problem
were able to reproduce under enough memory pressure to cause
aggressive reclaim in a particular window of time.
To support future xfstests cases, add an error injection tag to
hardcode the buffer reference count to zero. When enabled, this
bypasses caching of associated buffers and facilitates test cases
that depend on this behavior.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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The child buffer read in xfs_attr3_node_inactive() should never
reach a hole in the attr fork. If this occurs, it is likely due to a
bug. Prior to commit cd87d867 ("xfs: don't crash on unexpected holes
in dir/attr btrees"), this would result in a crash. Now that the
crash has been fixed, this is a silent failure.
Pass -1 to xfs_da3_node_read() from xfs_da3_node_inactive() to
indicate that reading from a hole is an error. This logs an error to
syslog and fails the inode inactivation, leaving the inode on the AG
unlinked list until removed by xfs_repair (or log recovery). Also
update the subsequent code to reflect that the read now returns a
non-NULL buffer or an error.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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A umount hang is possible when a race occurs between the umount
process and the xfsaild kthread. The following sequences outline
the race:
xfsaild: kthread_should_stop()
=> return false, so xfsaild continue
umount: set_bit(KTHREAD_SHOULD_STOP, &kthread->flags)
=> by kthread_stop()
umount: wake_up_process()
=> because xfsaild is still running, so 0 is returned
xfsaild: __set_current_state(TASK_INTERRUPTIBLE)
xfsaild: schedule()
=> now, xfsaild will wait indefinitely
umount: wait_for_completion()
=> and umount will hang
To fix that, we need to check kthread_should_stop() after we set
the task state, so the xfsaild will either see the stop bit and
exit or the task state is reset to runnable by wake_up_process()
such that it isn't scheduled out indefinitely and detects the stop
bit at the next iteration.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Unused after the big bmap refactor.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Unused after the big bmap refactor.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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We only use xfs_bmbt_lookup_ge to look up the first bmap record in an
inode, so replace xfs_bmbt_lookup_ge with a special purpose helper that
is a bit more descriptive.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Now that we've massaged the callers into the right form we can always
pass the actual extent record instead of the individual fields.
As an additional benefit the btree cursor will now be prepoulated with
the correct extent state instead of having to fix it up later.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Now that we've massaged the callers into the right form we can always
pass the actual extent record instead of the individual fields.
With that xfs_bmbt_disk_set_allf can go away, and xfs_bmbt_disk_set_all
can be merged into the former implementation of xfs_bmbt_disk_set_allf.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use xfs_iext_get_extent to find, and xfs_iext_update_extent to update
entries in the in-core extent list. This isolates the function from
the detailed layout of the extent list, and generally makes the code
a lot more readable.
Also get rid of the oldext and newext variables as using the extent
records is a lot more descriptive.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Account for all changes to the delalloc reservation in da_new, and use a
single call xfs_mod_fdblocks to reserve/free blocks, including always
checking for an error.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use xfs_iext_get_extent to find, and xfs_iext_update_extent to update
entries in the in-core extent list. This isolates the function from
the detailed layout of the extent list, and generally makes the code
a lot more readable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use xfs_iext_update_extent to update entries in the in-core extent list.
This isolates the function from the detailed layout of the extent list,
and generally makes the code a lot more readable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use xfs_iext_get_extent to find, and xfs_iext_update_extent to update
entries in the in-core extent list. This isolates the function from
the detailed layout of the extent list, and generally makes the code
a lot more readable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use xfs_iext_update_extent to update entries in the in-core extent list.
This isolates the function from the detailed layout of the extent list,
and generally makes the code a lot more readable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use the same defines as the other extent add and delete helpers, which
both improves code readability and trace point output.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Use the _FILLING values to match the usage in the xfs_bmap_add_extent_*
helpers. No change in behavior, just better naming in the code and
tracepoint output.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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And remove the delalloc code from xfs_bmap_del_extent, which gets renamed
to xfs_bmap_del_extent_real to fit the naming scheme used by the other
xfs_bmap_{add,del}_extent_* routines.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Rename the bno variable that's used as the end of the range in
__xfs_bunmapi to end, which better describes it. Additionally change
the start variable which takes the initial value of bno to be the
function parameter itself.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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The XFS_BTCUR_BPRV_WASDEL flag is supposed to indicate that we are
converting a delayed allocation to a real one, which isn't the case
in xfs_bunmapi. Setting it could theoretically lead to misaccounting
here, but it's unlikely that we ever hit it in practice.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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This avoids exposure to details of the extent list implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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There was one spot in xfs_bmap_add_extent_unwritten_real that didn't use the
passed in new extent state but always converted to normal, leading to wrong
behavior when converting from normal to unwritten.
Only found by code inspection, it seems like this code path to move partial
extent from written to unwritten while merging it with the next extent is
rarely exercised.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Instead of passing in a formatter callback allocate the bmap buffer
in the caller and process the entries there. Additionally replace
the in-kernel buffer with a new much smaller structure, and unify
the implementation of the different ioctls in a single function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Currently getbmap uses xfs_bmapi_read to query the extent map, and then
fixes up various bits that are eventually reported to userspace.
This patch instead rewrites it to use xfs_iext_lookup_extent and
xfs_iext_get_extent to iteratively process the extent map. This not
only avoids the need to allocate a map for the returned xfs_bmbt_irec
structures but also greatly simplified the code.
There are two intentional behavior changes compared to the old code:
- the current code reports unwritten extents that don't directly border
a written one as unwritten even when not passing the BMV_IF_PREALLOC
option, contrary to the documentation. The new code requires the
BMV_IF_PREALLOC flag to report the unwrittent extent bit.
- The new code does never merges consecutive extents, unlike the old
code that sometimes does it based on the boundaries of the
xfs_bmapi_read calls. Note that the extent merging behavior was
entirely undocumented.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fix from Doug Ledford:
"Fix an oops issue in the new RDMA netlink code"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
RDMA/netlink: OOPs in rdma_nl_rcv_msg() from misinterpreted flag
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This reverts commit 651e28c5537abb39076d3949fb7618536f1d242e.
This caused a regression:
"The specific problem is that dnsmasq refuses to start on openSUSE Leap
42.2. The specific cause is that and attempt to open a PF_LOCAL socket
gets EACCES. This means that networking doesn't function on a system
with a 4.14-rc2 system."
Sadly, the developers involved seemed to be in denial for several weeks
about this, delaying the revert. This has not been a good release for
the security subsystem, and this area needs to change development
practices.
Reported-and-bisected-by: James Bottomley <James.Bottomley@hansenpartnership.com>
Tracked-by: Thorsten Leemhuis <regressions@leemhuis.info>
Cc: John Johansen <john.johansen@canonical.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Seth Arnold <seth.arnold@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This fixes a device power management quality of service (PM QoS)
framework implementation issue causing 'no restriction' requests for
device resume latency, including 'no restriction' set by user space,
to effectively override requests with specific device resume latency
requirements.
It is late in the cycle, but the bug in question is in the 'user space
can trigger unexpected behavior' category and the fix is
stable-candidate, so here it goes"
* tag 'pm-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / QoS: Fix device resume latency PM QoS
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Pull block fixes from Jens Axboe:
"A few select fixes that should go into this series. Mainly for NVMe,
but also a single stable fix for nbd from Josef"
* 'for-linus' of git://git.kernel.dk/linux-block:
nbd: handle interrupted sendmsg with a sndtimeo set
nvme-rdma: Fix error status return in tagset allocation failure
nvme-rdma: Fix possible double free in reconnect flow
nvmet: synchronize sqhd update
nvme-fc: retry initial controller connections 3 times
nvme-fc: fix iowait hang
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"There are a bunch of device specific fixes (more than I'd like, I've
been lax sending these) plus one important core fix for the conversion
to use an IDR for bus number allocation which avoids issues with
collisions when some but not all of the buses in the system have a
fixed bus number specified.
The Armada changes are rather large, specificially "spi: armada-3700:
Fix padding when sending not 4-byte aligned data", but it's a storage
corruption issue and there's things like indentation changes which
make it look bigger than it really is. It's been cooking in -next for
quite a while now and is part of the reason for the delay"
* tag 'spi-fix-v4.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers
spi: bcm-qspi: Fix use after free in bcm_qspi_probe() in error path
spi: a3700: Return correct value on timeout detection
spi: uapi: spidev: add missing ioctl header
spi: stm32: Fix logical error in stm32_spi_prepare_mbr()
spi: armada-3700: Fix padding when sending not 4-byte aligned data
spi: armada-3700: Fix failing commands with quad-SPI
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Pull ceph fix from Ilya Dryomov:
"A small lock imbalance fix, marked for stable"
* tag 'ceph-for-4.14-rc7' of git://github.com/ceph/ceph-client:
ceph: unlock dangling spinlock in try_flush_caps()
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Pull xfs fix from Darrick Wong:
"Here's (hopefully) the last bugfix for 4.14:
- Rework nowait locking code to reduce locking overhead penalty"
* tag 'xfs-4.14-fixes-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix AIM7 regression
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix initial temperature readings for TMP102
- Fix timeouts in DA9052 driver by increasing its sampling rate
* tag 'hwmon-for-linus-v4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (tmp102) Fix first temperature reading
hwmon: (da9052) Increase sample rate when using TSI
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just two HD-audio fixups for a recent Realtek codec model. It's pretty
safe to apply (and unsurprisingly boring)"
* tag 'sound-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - fix headset mic problem for Dell machines with alc236
ALSA: hda/realtek - Add support for ALC236/ALC3204
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rdma_nl_rcv_msg() checks to see if it should use the .dump() callback
or the .doit() callback. The check is done with this check:
if (flags & NLM_F_DUMP) ...
The NLM_F_DUMP flag is two bits (NLM_F_ROOT | NLM_F_MATCH).
When an RDMA_NL_LS message (response) is received, the bit used for
indicating an error is the same bit as NLM_F_ROOT.
NLM_F_ROOT == (0x100) == RDMA_NL_LS_F_ERR.
ibacm sends a response with the RDMA_NL_LS_F_ERR bit set if an error
occurs in the service. The current code then misinterprets the
NLM_F_DUMP bit and trys to call the .dump() callback.
If the .dump() callback for the specified request is not available
(which is true for the RDMA_NL_LS messages) the following Oops occurs:
[ 4555.960256] BUG: unable to handle kernel NULL pointer dereference at
(null)
[ 4555.969046] IP: (null)
[ 4555.972664] PGD 10543f1067 P4D 10543f1067 PUD 1033f93067 PMD 0
[ 4555.979287] Oops: 0010 [#1] SMP
[ 4555.982809] Modules linked in: rpcrdma ib_isert iscsi_target_mod
target_core_mod ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_ucm ib_ucm
ib_uverbs ib_umad rdma_cm ib_cm iw_cm dm_mirror dm_region_hash dm_log dm_mod
dax sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm irqbypass
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel crypto_simd
glue_helper cryptd hfi1 rdmavt iTCO_wdt iTCO_vendor_support ib_core mei_me
lpc_ich pcspkr mei ioatdma sg shpchp i2c_i801 mfd_core wmi ipmi_si ipmi_devintf
ipmi_msghandler acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd grace
sunrpc ip_tables ext4 mbcache jbd2 sd_mod mgag200 drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops ttm igb ahci crc32c_intel ptp libahci
pps_core drm dca libata i2c_algo_bit i2c_core
[ 4556.061190] CPU: 54 PID: 9841 Comm: ibacm Tainted: G I
4.14.0-rc2+ #6
[ 4556.069667] Hardware name: Intel Corporation S2600WT2/S2600WT2, BIOS
SE5C610.86B.01.01.0008.021120151325 02/11/2015
[ 4556.081339] task: ffff880855f42d00 task.stack: ffffc900246b4000
[ 4556.087967] RIP: 0010: (null)
[ 4556.092166] RSP: 0018:ffffc900246b7bc8 EFLAGS: 00010246
[ 4556.098018] RAX: ffffffff81dbe9e0 RBX: ffff881058bb1000 RCX:
0000000000000000
[ 4556.105997] RDX: 0000000000001100 RSI: ffff881058bb1320 RDI:
ffff881056362000
[ 4556.113984] RBP: ffffc900246b7bf8 R08: 0000000000000ec0 R09:
0000000000001100
[ 4556.121971] R10: ffff8810573a5000 R11: 0000000000000000 R12:
ffff881056362000
[ 4556.129957] R13: 0000000000000ec0 R14: ffff881058bb1320 R15:
0000000000000ec0
[ 4556.137945] FS: 00007fe0ba5a38c0(0000) GS:ffff88105f080000(0000)
knlGS:0000000000000000
[ 4556.147000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4556.153433] CR2: 0000000000000000 CR3: 0000001056f5d003 CR4:
00000000001606e0
[ 4556.161419] Call Trace:
[ 4556.164167] ? netlink_dump+0x12c/0x290
[ 4556.168468] __netlink_dump_start+0x186/0x1f0
[ 4556.173357] rdma_nl_rcv_msg+0x193/0x1b0 [ib_core]
[ 4556.178724] rdma_nl_rcv+0xdc/0x130 [ib_core]
[ 4556.183604] netlink_unicast+0x181/0x240
[ 4556.187998] netlink_sendmsg+0x2c2/0x3b0
[ 4556.192392] sock_sendmsg+0x38/0x50
[ 4556.196299] SYSC_sendto+0x102/0x190
[ 4556.200308] ? __audit_syscall_entry+0xaf/0x100
[ 4556.205387] ? syscall_trace_enter+0x1d0/0x2b0
[ 4556.210366] ? __audit_syscall_exit+0x209/0x290
[ 4556.215442] SyS_sendto+0xe/0x10
[ 4556.219060] do_syscall_64+0x67/0x1b0
[ 4556.223165] entry_SYSCALL64_slow_path+0x25/0x25
[ 4556.228328] RIP: 0033:0x7fe0b9db2a63
[ 4556.232333] RSP: 002b:00007ffc55edc260 EFLAGS: 00000293 ORIG_RAX:
000000000000002c
[ 4556.240808] RAX: ffffffffffffffda RBX: 0000000000000010 RCX:
00007fe0b9db2a63
[ 4556.248796] RDX: 0000000000000010 RSI: 00007ffc55edc280 RDI:
000000000000000d
[ 4556.256782] RBP: 00007ffc55edc670 R08: 00007ffc55edc270 R09:
000000000000000c
[ 4556.265321] R10: 0000000000000000 R11: 0000000000000293 R12:
00007ffc55edc280
[ 4556.273846] R13: 000000000260b400 R14: 000000000000000d R15:
0000000000000001
[ 4556.282368] Code: Bad RIP value.
[ 4556.286629] RIP: (null) RSP: ffffc900246b7bc8
[ 4556.293013] CR2: 0000000000000000
[ 4556.297292] ---[ end trace 8d67abcfd10ec209 ]---
[ 4556.305465] Kernel panic - not syncing: Fatal exception
[ 4556.313786] Kernel Offset: disabled
[ 4556.321563] ---[ end Kernel panic - not syncing: Fatal exception
[ 4556.328960] ------------[ cut here ]------------
Special case RDMA_NL_LS response messages to call the appropriate
callback.
Additionally, make sure that the .dump() callback is not NULL
before calling it.
Fixes: 647c75ac59a48a54 ("RDMA/netlink: Convert LS to doit callback")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Reviewed-by: Alex Estrin <alex.estrin@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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'spi/fix/qspi', 'spi/fix/stm32' and 'spi/fix/uapi' into spi-linus
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