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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Paolo writes:
"KVM changes for 4.19-rc7
x86 and PPC bugfixes, mostly introduced in 4.19-rc1."
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: nVMX: fix entry with pending interrupt if APICv is enabled
KVM: VMX: hide flexpriority from guest when disabled at the module level
KVM: VMX: check for existence of secondary exec controls before accessing
KVM: PPC: Book3S HV: Avoid crash from THP collapse during radix page fault
KVM: x86: fix L1TF's MMIO GFN calculation
tools/kvm_stat: cut down decimal places in update interval dialog
KVM: nVMX: Fix emulation of VM_ENTRY_LOAD_BNDCFGS
KVM: x86: Do not use kvm_x86_ops->mpx_supported() directly
KVM: nVMX: Do not expose MPX VMX controls when guest MPX disabled
KVM: x86: never trap MSR_KERNEL_GS_BASE
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Merge tag '4.19-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Steve writes:
"SMB3 fixes
four small SMB3 fixes: one for stable, the others to address a more
recent regression"
* tag '4.19-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: fix lease break problem introduced by compounding
cifs: only wake the thread for the very last PDU in a compound
cifs: add a warning if we try to to dequeue a deleted mid
smb2: fix missing files in root share directory listing
Recently we implemented show_user_instructions() which dumps the code
around the NIP when a user space process dies with an unhandled
signal. This was modelled on the x86 code, and we even went so far as
to implement the exact same bug, namely that if the user process
crashed with its NIP pointing into the kernel we will dump kernel text
to dmesg. eg:
bad-bctr[2996]: segfault (11) at c000000000010000 nip c000000000010000 lr 12d0b0894 code 1
bad-bctr[2996]: code: fbe10068 7cbe2b78 7c7f1b78 fb610048 38a10028 38810020 fb810050 7f8802a6
bad-bctr[2996]: code: 3860001c f8010080 48242371 60000000 <7c7b1b79> 4082002c e8010080 eb610048
This was discovered on x86 by Jann Horn and fixed in commit
342db04ae7 ("x86/dumpstack: Don't dump kernel memory based on usermode RIP").
Fix it by checking the adjusted NIP value (pc) and number of
instructions against USER_DS, and bail if we fail the check, eg:
bad-bctr[2969]: segfault (11) at c000000000010000 nip c000000000010000 lr 107930894 code 1
bad-bctr[2969]: Bad NIP, not dumping instructions.
Fixes: 88b0fe1757 ("powerpc: Add show_user_instructions()")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
There are platforms which don't provide input clock rate but provide
I2C timing parameters. Commit 3bd4f27727 ("i2c: designware: Call
i2c_dw_clk_rate() only once in i2c_dw_init_master()") causes needless
warning during probe on those platforms since i2c_dw_clk_rate(), which
causes the warning when input clock is unknown, is called even when
there is no need to calculate timing parameters.
Fixes: 3bd4f27727 ("i2c: designware: Call i2c_dw_clk_rate() only once in i2c_dw_init_master()")
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org> # 4.19
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Boris Ostrovsky reported a memory leak with device passthrough when SME
is active.
The VFIO driver uses iommu_iova_to_phys() to get the physical address for
an iova. This physical address is later passed into vfio_unmap_unpin() to
unpin the memory. The vfio_unmap_unpin() uses pfn_valid() before unpinning
the memory. The pfn_valid() check was failing because encryption mask was
part of the physical address returned. This resulted in the memory not
being unpinned and therefore leaked after the guest terminates.
The memory encryption mask must be cleared from the physical address in
iommu_iova_to_phys().
Fixes: 2543a786aa ("iommu/amd: Allow the AMD IOMMU to work with memory encryption")
Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: <iommu@lists.linux-foundation.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: kvm@vger.kernel.org
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <stable@vger.kernel.org> # 4.14+
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
When connecting SFP PHY to phylink use the detected interface.
Otherwise, the link fails to come up when the configured 'phy-mode'
differs from the SFP detected mode.
Move most of phylink_connect_phy() into __phylink_connect_phy(), and
leave phylink_connect_phy() as a wrapper. phylink_sfp_connect_phy() can
now pass the SFP detected PHY interface to __phylink_connect_phy().
This fixes 1GB SFP module link up on eth3 of the Macchiatobin board that
is configured in the DT to "2500base-x" phy-mode.
Fixes: 9525ae8395 ("phylink: add phylink infrastructure")
Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
the be2net implementation of .ndo_tunnel_{add,del}() changes the value of
NETIF_F_GSO_UDP_TUNNEL bit in 'features' and 'hw_features', but it forgets
to call netdev_features_change(). Moreover, ethtool setting for that bit
can potentially be reverted after a tunnel is added or removed.
GSO already does software segmentation when 'hw_enc_features' is 0, even
if VXLAN offload is turned on. In addition, commit 096de2f83e ("benet:
stricter vxlan offloading check in be_features_check") avoids hardware
segmentation of non-VXLAN tunneled packets, or VXLAN packets having wrong
destination port. So, it's safe to avoid flipping the above feature on
addition/deletion of VXLAN tunnels.
Fixes: 630f4b7056 ("be2net: Export tunnel offloads only when a VxLAN tunnel is created")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
One patch here, fixing a potential host crash introduced (or at least
exacerbated) by a previous fix for corruption relating to radix guest
page faults and THP operations.
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Merge tag 'kvm-ppc-fixes-4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-master
Third set of PPC KVM fixes for 4.19
One patch here, fixing a potential host crash introduced (or at least
exacerbated) by a previous fix for corruption relating to radix guest
page faults and THP operations.
When we use raw socket as the vhost backend, a packet from virito with
gso offloading information, cannot be sent out in later validaton at
xmit path, as we did not set correct skb->protocol which is further used
for looking up the gso function.
To fix this, we set this field according to virito hdr information.
Fixes: e858fae2b0 ("virtio_net: use common code for virtio_net_hdr and skb GSO conversion")
Signed-off-by: Jianfeng Tan <jianfeng.tan@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit c499696e79 ("net: dsa: b53: Stop using dev->cpu_port
incorrectly") was a bit too trigger happy in removing the CPU port from
the VLAN membership because we rely on DSA to program the CPU port VLAN,
which it does, except it does not bother itself with tagged/untagged and
just usese untagged.
Having the CPU port "follow" the user ports tagged/untagged is not great
and does not allow for properly differentiating, so keep the CPU port
tagged in all VLANs.
Reported-by: Gerhard Wiesinger <lists@wiesinger.com>
Fixes: c499696e79 ("net: dsa: b53: Stop using dev->cpu_port incorrectly")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Load the respective NAT helper module if the flow uses it.
Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan says:
====================
bnxt_en: Misc. bug fixes.
4 small bug fixes related to setting firmware message enables bits, possible
memory leak when probe fails, and ring accouting when RDMA driver is loaded.
Please queue these for -stable as well. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When getting the max rings supported, get the reduced max_irqs
by the ones used by RDMA.
If the number MSIX is the limiting factor, this bug may cause the
max ring count to be higher than it should be when RDMA driver is
loaded and may result in ring allocation failures.
Fixes: 30f529473e ("bnxt_en: Do not modify max IRQ count after RDMA driver requests/frees IRQs.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the driver probe fails, all the resources that were allocated prior
to the failure must be freed. However, hwrm dma response memory is not
getting freed.
This patch fixes the problem described above.
Fixes: c0c050c58d ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In HWRM_QUEUE_COS2BW_CFG request, enables field should have the bits
set only for the queue ids which are having the valid parameters.
This causes firmware to return error when the TC to hardware CoS queue
mapping is not 1:1 during DCBNL ETS setup.
Fixes: 2e8ef77ee0 ("bnxt_en: Add TC to hardware QoS queue mapping logic.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The enables bit for VNIC was set wrong when calling the HWRM_FUNC_CFG
firmware call to reserve VNICs. This has the effect that the firmware
will keep a large number of VNICs for the PF, and having very few for
VFs. DPDK driver running on the VFs, which requires more VNICs, may not
work properly as a result.
Fixes: 674f50a5b0 ("bnxt_en: Implement new method to reserve rings.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'drm-fixes-2018-10-05' of git://anongit.freedesktop.org/drm/drm
Dave writes:
"amdgpu and two core fixes
Two fixes for amdgpu:
one corrects a use of process->mm
one fix for display code race condition that can result in a crash
Two core fixes:
One for a use-after-free in the leasing code
One for a cma/fbdev crash."
* tag 'drm-fixes-2018-10-05' of git://anongit.freedesktop.org/drm/drm:
drm/amdkfd: Fix incorrect use of process->mm
drm/amd/display: Signal hw_done() after waiting for flip_done()
drm/cma-helper: Fix crash in fbdev error path
drm: fix use-after-free read in drm_mode_create_lease_ioctl()
Cancel pending work before freeing smsc75xx private data structure
during binding. This fixes the following crash in the driver:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
IP: mutex_lock+0x2b/0x3f
<snipped>
Workqueue: events smsc75xx_deferred_multicast_write [smsc75xx]
task: ffff8caa83e85700 task.stack: ffff948b80518000
RIP: 0010:mutex_lock+0x2b/0x3f
<snipped>
Call Trace:
smsc75xx_deferred_multicast_write+0x40/0x1af [smsc75xx]
process_one_work+0x18d/0x2fc
worker_thread+0x1a2/0x269
? pr_cont_work+0x58/0x58
kthread+0xfa/0x10a
? pr_cont_work+0x58/0x58
? rcu_read_unlock_sched_notrace+0x48/0x48
ret_from_fork+0x22/0x40
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* fix use-after-free in regulatory code
* fix rx-mgmt key flag in AP mode (mac80211)
* fix wireless extensions compat code memory leak
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Merge tag 'mac80211-for-davem-2018-10-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Just three small fixes:
* fix use-after-free in regulatory code
* fix rx-mgmt key flag in AP mode (mac80211)
* fix wireless extensions compat code memory leak
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'ovl-fixes-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Miklos writes:
"overlayfs fixes for 4.19-rc7
This update fixes a couple of regressions in the stacked file update
added in this cycle, as well as some older bugs uncovered by
syzkaller.
There's also one trivial naming change that touches other parts of
the fs subsystem."
* tag 'ovl-fixes-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix format of setxattr debug
ovl: fix access beyond unterminated strings
ovl: make symbol 'ovl_aops' static
vfs: swap names of {do,vfs}_clone_file_range()
ovl: fix freeze protection bypass in ovl_clone_file_range()
ovl: fix freeze protection bypass in ovl_write_iter()
ovl: fix memory leak on unlink of indexed file
A reload of the cache's DM table is needed during resize because
otherwise a crash will occur when attempting to access smq policy
entries associated with the portion of the cache that was recently
extended.
The reason is cache-size based data structures in the policy will not be
resized, the only way to safely extend the cache is to allow for a
proper cache policy initialization that occurs when the cache table is
loaded. For example the smq policy's space_init(), init_allocator(),
calc_hotspot_params() must be sized based on the extended cache size.
The fix for this is to disallow cache resizes of this pattern:
1) suspend "cache" target's device
2) resize the fast device used for the cache
3) resume "cache" target's device
Instead, the last step must be a full reload of the cache's DM table.
Fixes: 66a636356 ("dm cache: add stochastic-multi-queue (smq) policy")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Commit fd2fa9541 ("dm cache metadata: save in-core policy_hint_size to
on-disk superblock") enabled previously written policy hints to be
used after a cache is reactivated. But in doing so the cache
metadata's hint array was left exposed to out of bounds access because
on resize the metadata's on-disk hint array wasn't ever extended.
Fix this by ignoring that there are no on-disk hints associated with the
newly added cache blocks. An expanded on-disk hint array is later
rewritten upon the next clean shutdown of the cache.
Fixes: fd2fa9541 ("dm cache metadata: save in-core policy_hint_size to on-disk superblock")
Cc: stable@vger.kernel.org
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
If __device_suspend() runs asynchronously (in which case the device
passed to it is in dpm_suspended_list at that point) and it returns
early on an error or pending wakeup, and the power.direct_complete
flag has been set for the device already, the subsequent
device_resume() will be confused by that and it will call
pm_runtime_enable() incorrectly, as runtime PM has not been
disabled for the device by __device_suspend().
To avoid that, clear power.direct_complete if __device_suspend()
is not going to disable runtime PM for the device before returning.
Fixes: aae4518b31 (PM / sleep: Mechanism to avoid resuming runtime-suspended devices unnecessarily)
Reported-by: Al Cooper <alcooperx@gmail.com>
Tested-by: Al Cooper <alcooperx@gmail.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Ido Schimmel says:
====================
mlxsw: Couple of fixes
First patch works around an hardware issue in Spectrum-2 where a field
indicating the event type is always set to the same value. Since there
are only two event types and they are reported using different queues,
we can use the queue number to derive the event type.
Second patch prevents a router interface (RIF) leakage when a VLAN
device is deleted from on top a bridge device.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 602b74eda8 ("mlxsw: spectrum_switchdev: Do not leak RIFs
when removing bridge") I handled the case where RIFs created for VLAN
devices were not properly cleaned up when their real device (a bridge)
was removed.
However, I forgot to handle the case of the VLAN device itself being
removed. Do so now when the VLAN device is being unlinked from its real
device.
Fixes: 99f44bb352 ("mlxsw: spectrum: Enable L3 interfaces on top of bridge devices")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reported-by: Artem Shvorin <art@qrator.net>
Tested-by: Artem Shvorin <art@qrator.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Due to a hardware issue in Spectrum-2, the field event_type of the event
queue element (EQE) has become reserved. It was used to distinguish between
command interface completion events and completion events.
Use queue number to determine event type, as command interface completion
events are always received on EQ0 and mlxsw driver maps completion events
to EQ1.
Fixes: c3ab435466 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell writes:
"A couple of small ARM fixes from Stefan and Thomas:
- Adding the io_pgetevents syscall
- Fixing a bounds check in pci_ioremap_io()"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8799/1: mm: fix pci_ioremap_io() offset check
ARM: 8787/1: wire up io_pgetevents syscall
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Merge tag 'drm-fixes-2018-10-04' of git://anongit.freedesktop.org/drm/drm
Dave writes:
"drm exynos, tda9950 and intel fixes
3 i915 fixes:
compressed error handling zlib fix
compiler warning cleanup
and a minor code cleanup
2 tda9950:
Two fixes for the HDMI CEC
1 exynos:
A fix required for IOMMU interaction."
* tag 'drm-fixes-2018-10-04' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Handle incomplete Z_FINISH for compressed error states
drm/i915: Avoid compiler warning for maybe unused gu_misc_iir
drm/i915: Do not redefine the has_csr parameter.
drm/exynos: Use selected dma_dev default iommu domain instead of a fake one
drm/i2c: tda9950: set MAX_RETRIES for errors only
drm/i2c: tda9950: fix timeout counter check
Accumlated regression and bug fixes for 4.19-rc6, including:
o make iomap correctly mark dirty pages for sub-page block sizes
o fix regression in handling extent-to-btree format conversion errors
o fix torn log wrap detection for new logs
o various corrupt inode detection fixes
o various delalloc state fixes
o cleanup all the missed transaction cancel cases missed from changes merged
in 4.19-rc1
o fix lockdep false positive on transaction allocation
o fix locking and reference counting on buffer log items
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Merge tag 'xfs-fixes-for-4.19-rc6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Dave writes:
"XFS fixes for 4.19-rc6
Accumlated regression and bug fixes for 4.19-rc6, including:
o make iomap correctly mark dirty pages for sub-page block sizes
o fix regression in handling extent-to-btree format conversion errors
o fix torn log wrap detection for new logs
o various corrupt inode detection fixes
o various delalloc state fixes
o cleanup all the missed transaction cancel cases missed from changes merged
in 4.19-rc1
o fix lockdep false positive on transaction allocation
o fix locking and reference counting on buffer log items"
* tag 'xfs-fixes-for-4.19-rc6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix error handling in xfs_bmap_extents_to_btree
iomap: set page dirty after partial delalloc on mkwrite
xfs: remove invalid log recovery first/last cycle check
xfs: validate inode di_forkoff
xfs: skip delalloc COW blocks in xfs_reflink_end_cow
xfs: don't treat unknown di_flags2 as corruption in scrub
xfs: remove duplicated include from alloc.c
xfs: don't bring in extents in xfs_bmap_punch_delalloc_range
xfs: fix transaction leak in xfs_reflink_allocate_cow()
xfs: avoid lockdep false positives in xfs_trans_alloc
xfs: refactor xfs_buf_log_item reference count handling
xfs: clean up xfs_trans_brelse()
xfs: don't unlock invalidated buf on aborted tx commit
xfs: remove last of unnecessary xfs_defer_cancel() callers
xfs: don't crash the vfs on a garbage inline symlink
This tag contains a single patch that managed to get lost in the
shuffle, which explains why it's so late. This single line has been
floating around in various patch sets for months, and fixes our DMA32
region.
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Merge tag 'riscv-for-linus-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Palmer writes:
"A Single RISC-V Fix for 4.19-rc7
This tag contains a single patch that managed to get lost in the
shuffle, which explains why it's so late. This single line has been
floating around in various patch sets for months, and fixes our DMA32
region."
* tag 'riscv-for-linus-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
RISCV: Fix end PFN for low memory
This mm_struct pointer should never be dereferenced. If running in
a user thread, just use current->mm. If running in a kernel worker
use get_task_mm to get a safe reference to the mm_struct.
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In amdgpu_dm_commit_tail(), wait until flip_done() is signaled before
we signal hw_done().
[Why]
This is to temporarily address a paging error that occurs when a
nonblocking commit contends with another commit, particularly in a
mirrored display configuration where at least 2 CRTCs are updated.
The error occurs in drm_atomic_helper_wait_for_flip_done(), when we
attempt to access the contents of new_crtc_state->commit.
Here's the sequence for a mirrored 2 display setup (irrelevant steps
left out for clarity):
**THREAD 1** | **THREAD 2**
|
Initialize atomic state for flip |
|
Queue worker |
...
| Do work for flip
|
| Signal hw_done() on CRTC 1
| Signal hw_done() on CRTC 2
|
| Wait for flip_done() on CRTC 1
<---- **PREEMPTED BY THREAD 1**
Initialize atomic state for cursor |
update (1) |
|
Do cursor update work on both CRTCs |
|
Clear atomic state (2) |
**DONE** |
...
|
| Wait for flip_done() on CRTC 2
| *ERROR*
|
The issue starts with (1). When the atomic state is initialized, the
current CRTC states are duplicated to be the new_crtc_states, and
referenced to be the old_crtc_states. (The new_crtc_states are to be
filled with update data.)
Some things to note:
* Due to the mirrored configuration, the cursor updates on both CRTCs.
* At this point, the pflip IRQ has already been handled, and flip_done
signaled on all CRTCs. The cursor commit can therefore continue.
* The old_crtc_states used by the cursor update are the **same states**
as the new_crtc_states used by the flip worker.
At (2), the old_crtc_state is freed (*), and the cursor commit
completes. We then context switch back to the flip worker, where we
attempt to access the new_crtc_state->commit object. This is
problematic, as this state has already been freed.
(*) Technically, 'state->crtcs[i].state' is freed, which was made to
reference old_crtc_state in drm_atomic_helper_swap_state()
[How]
By moving hw_done() after wait_for_flip_done(), we're guaranteed that
the new_crtc_state (from the flip worker's perspective) still exists.
This is because any other commit will be blocked, waiting for the
hw_done() signal.
Note that both the i915 and imx drivers have this sequence flipped
already, masking this problem.
Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Commit b5861e5cf2 introduced a check on
the interrupt-window and NMI-window CPU execution controls in order to
inject an external interrupt vmexit before the first guest instruction
executes. However, when APIC virtualization is enabled the host does not
need a vmexit in order to inject an interrupt at the next interrupt window;
instead, it just places the interrupt vector in RVI and the processor will
inject it as soon as possible. Therefore, on machines with APICv it is
not enough to check the CPU execution controls: the same scenario can also
happen if RVI>vPPR.
Fixes: b5861e5cf2
Reviewed-by: Nikita Leshchenko <nikita.leshchenko@oracle.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Liran Alon <liran.alon@oracle.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Format has a typo: it was meant to be "%.*s", not "%*s". But at some point
callers grew nonprintable values as well, so use "%*pE" instead with a
maximized length.
Reported-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 3a1e819b4e ("ovl: store file handle of lower inode on copy up")
Cc: <stable@vger.kernel.org> # v4.12
As of commit 8d860bbeed ("kvm: vmx: Basic APIC virtualization controls
have three settings"), KVM will disable VIRTUALIZE_APIC_ACCESSES when
a nested guest writes APIC_BASE MSR and kvm-intel.flexpriority=0,
whereas previously KVM would allow a nested guest to enable
VIRTUALIZE_APIC_ACCESSES so long as it's supported in hardware. That is,
KVM now advertises VIRTUALIZE_APIC_ACCESSES to a guest but doesn't
(always) allow setting it when kvm-intel.flexpriority=0, and may even
initially allow the control and then clear it when the nested guest
writes APIC_BASE MSR, which is decidedly odd even if it doesn't cause
functional issues.
Hide the control completely when the module parameter is cleared.
reported-by: Sean Christopherson <sean.j.christopherson@intel.com>
Fixes: 8d860bbeed ("kvm: vmx: Basic APIC virtualization controls have three settings")
Cc: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Return early from vmx_set_virtual_apic_mode() if the processor doesn't
support VIRTUALIZE_APIC_ACCESSES or VIRTUALIZE_X2APIC_MODE, both of
which reside in SECONDARY_VM_EXEC_CONTROL. This eliminates warnings
due to VMWRITEs to SECONDARY_VM_EXEC_CONTROL (VMCS field 401e) failing
on processors without secondary exec controls.
Remove the similar check for TPR shadowing as it is incorporated in the
flexpriority_enabled check and the APIC-related code in
vmx_update_msr_bitmap() is further gated by VIRTUALIZE_X2APIC_MODE.
Reported-by: Gerhard Wiesinger <redhat@wiesinger.com>
Fixes: 8d860bbeed ("kvm: vmx: Basic APIC virtualization controls have three settings")
Cc: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When I added the missing memory outputs, I failed to update the
index of the first argument (ebx) on 32-bit builds, which broke the
fallbacks. Somehow I must have screwed up my testing or gotten
lucky.
Add another test to cover gettimeofday() as well.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 715bd9d12f ("x86/vdso: Fix asm constraints on vDSO syscall fallbacks")
Link: http://lkml.kernel.org/r/21bd45ab04b6d838278fa5bebfa9163eceffa13c.1538608971.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The issue is the same as commit dd9aa335c8 ("ALSA: hda/realtek - Can't
adjust speaker's volume on a Dell AIO"), the output requires to connect
to a node with Amp-out capability.
Applying the same fixup ALC298_FIXUP_SPK_VOLUME can fix the issue.
BugLink: https://bugs.launchpad.net/bugs/1775068
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Commit 71d29f43b6 ("KVM: PPC: Book3S HV: Don't use compound_order to
determine host mapping size", 2018-09-11) added a call to
__find_linux_pte() and a dereference of the returned PTE pointer to the
radix page fault path in the common case where the page is normal
system memory. Previously, __find_linux_pte() was only called for
mappings to physical addresses which don't have a page struct (e.g.
memory-mapped I/O) or where the page struct is marked as reserved
memory.
This exposes us to the possibility that the returned PTE pointer
could be NULL, for example in the case of a concurrent THP collapse
operation. Dereferencing the returned NULL pointer causes a host
crash.
To fix this, we check for NULL, and if it is NULL, we retry the
operation by returning to the guest, with the expectation that it
will generate the same page fault again (unless of course it has
been fixed up by another CPU in the meantime).
Fixes: 71d29f43b6 ("KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size")
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
, plus a compilation warning fix and a tiny code clean up.
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Merge tag 'drm-intel-fixes-2018-10-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
There's one fix for our zlib incomlete Z_FINISH on our error state handling,
plus a compilation warning fix and a tiny code clean up.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181003202840.GA23560@intel.com
David writes:
"Networking fixes:
1) Prefix length validation in xfrm layer, from Steffen Klassert.
2) TX status reporting fix in mac80211, from Andrei Otcheretianski.
3) Fix hangs due to TX_DROP in mac80211, from Bob Copeland.
4) Fix DMA error regression in b43, from Larry Finger.
5) Add input validation to xenvif_set_hash_mapping(), from Jan Beulich.
6) SMMU unmapping fix in hns driver, from Yunsheng Lin.
7) Bluetooh crash in unpairing on SMP, from Matias Karhumaa.
8) WoL handling fixes in the phy layer, from Heiner Kallweit.
9) Fix deadlock in bonding, from Mahesh Bandewar.
10) Fill ttl inherit infor in vxlan driver, from Hangbin Liu.
11) Fix TX timeouts during netpoll, from Michael Chan.
12) RXRPC layer fixes from David Howells.
13) Another batch of ndo_poll_controller() removals to deal with
excessive resource consumption during load. From Eric Dumazet.
14) Fix a specific TIPC failure secnario, from LUU Duc Canh.
15) Really disable clocks in r8169 during suspend so that low
power states can actually be reached.
16) Fix SYN backlog lockdep issue in tcp and dccp, from Eric Dumazet.
17) Fix RCU locking in netpoll SKB send, which shows up in bonding,
from Dave Jones.
18) Fix TX stalls in r8169, from Heiner Kallweit.
19) Fix locksup in nfp due to control message storms, from Jakub
Kicinski.
20) Various rmnet bug fixes from Subash Abhinov Kasiviswanathan and
Sean Tranchetti.
21) Fix use after free in ip_cmsg_recv_dstaddr(), from Eric Dumazet."
* gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (122 commits)
ixgbe: check return value of napi_complete_done()
sctp: fix fall-through annotation
r8169: always autoneg on resume
ipv4: fix use-after-free in ip_cmsg_recv_dstaddr()
net: qualcomm: rmnet: Fix incorrect allocation flag in receive path
net: qualcomm: rmnet: Fix incorrect allocation flag in transmit
net: qualcomm: rmnet: Skip processing loopback packets
net: systemport: Fix wake-up interrupt race during resume
rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096
bonding: fix warning message
inet: make sure to grab rcu_read_lock before using ireq->ireq_opt
nfp: avoid soft lockups under control message storm
declance: Fix continuation with the adapter identification message
net: fec: fix rare tx timeout
r8169: fix network stalls due to missing bit TXCFG_AUTO_FIFO
tun: napi flags belong to tfile
tun: initialize napi_mutex unconditionally
tun: remove unused parameters
bond: take rcu lock in netpoll_send_skb_on_dev
rtnetlink: Fail dump if target netnsid is invalid
...
The NIC driver should only enable interrupts when napi_complete_done()
returns true. This patch adds the check for ixgbe.
Cc: stable@vger.kernel.org # 4.10+
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes update for 4.19-rc7 consists one fix to rseq test to prevent
it from seg-faulting when compiled with -fpie.
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Merge tag 'linux-kselftest-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Shuah writes:
"kselftest fixes for 4.19-rc7
This fixes update for 4.19-rc7 consists one fix to rseq test to
prevent it from seg-faulting when compiled with -fpie."
* tag 'linux-kselftest-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
rseq/selftests: fix parametrized test with -fpie
Greg Kroah-Hartman