Hi Greg,
Can you cherry-pick these to 4.19.y & 5.4.y:
commit e06689bf57017ac022ccf0f2a5071f760821ce0f
Author: Alexey Dobriyan
Date: Wed Dec 4 16:49:59 2019 -0800
proc: change ->nlink under proc_subdir_lock
commit c6c75deda81344c3a95d1d1f606d5cee109e5d54
Author: Alexey Dobriyan
Date:
Hello,
Bisected problems with setns() and /proc/net/sctp/snmp to this:
commit 1da4d377f943fe4194ffb9fb9c26cc58fad4dd24
Author: Alexey Dobriyan
Date: Fri Apr 13 15:35:42 2018 -0700
proc: revalidate misc dentries
Reproduces for example with Fedora 5.9.10-100.fc32.x86_64, so 1fde6f21d90f
On Tue, 2020-10-27 at 14:08 -0600, Shuah Khan wrote:
>
> > @@ -73,8 +80,8 @@ int main(int argc, char **argv) {
> > aperf = new_aperf-old_aperf;
> > mperf = new_mperf-old_mperf;
> >
> > - start = before.time*1000 + before.millitm;
> > - finish = after.time*1000 + after.millitm;
> >
Hi Greg, Sasha,
Can you pick this to 5.4:
commit dbd660e6b2884b864d2642d930a163d3bcebe4be
Author: Tommi Rantala
Date: Thu Apr 23 14:53:40 2020 +0300
perf test session topology: Fix data path
And this to 5.4 and older LTS trees too:
commit 29b4f5f188571c112713c35cc87eefb46efee612
On Wed, 2020-06-24 at 10:15 -0400, Sasha Levin wrote:
> On Wed, Jun 24, 2020 at 12:00:59PM +0000, Rantala, Tommi T. (Nokia -
> FI/Espoo) wrote:
> > On Fri, 2020-06-19 at 16:31 +0200, Greg Kroah-Hartman wrote:
> > > From: Paolo Bonzini
> >
On Fri, 2020-06-19 at 16:31 +0200, Greg Kroah-Hartman wrote:
> From: Paolo Bonzini
>
> [ Upstream commit d43e2675e96fc6ae1a633b6a69d296394448cc32 ]
>
> KVM stores the gfn in MMIO SPTEs as a caching optimization. These are
> split
> in two parts, as in "[high 1 low]", to thwart any attempt
Hi Mathieu,
I'm getting rseq selftest build failure with glibc 2.30, which added
gettid():
param_test.c:18:21: error: static declaration of 'gettid' follows non-
static declaration
18 | static inline pid_t gettid(void)
| ^~
In file included from
Hello,
I have two VMs, exporting some directories in one VM:
# cat /etc/exports
/mnt 192.168.1.0/24(ro,fsid=0,no_subtree_check,sync)
/mnt/export
192.168.1.0/24(rw,no_root_squash,sync,no_wdelay,no_subtree_check)
[...]
And NFS mounting in the second VM:
# grep nfs /proc/mounts
server:/export
On Fri, 2019-08-02 at 09:28 +0200, gre...@linuxfoundation.org wrote:
> On Thu, Aug 01, 2019 at 10:17:30AM +0000, Rantala, Tommi T. (Nokia -
> FI/Espoo) wrote:
> > Hi,
> >
> > This tipc patch added in 4.14.132 is triggering a crash for me,
> > revert
> >
On Tue, 2019-07-02 at 10:02 +0200, Greg Kroah-Hartman wrote:
> From: Xin Long
>
> commit c3bcde026684c62d7a2b6f626dc7cf763833875c upstream.
>
> udp_tunnel(6)_xmit_skb() called by tipc_udp_xmit() expects a tunnel
> device
> to count packets on dev->tstats, a perpcu variable. However, TIPC is
>
From: Arnaldo Carvalho de Melo
commit 4a2233b194c77ae1ea8304cb7c00b551de4313f0 upstream.
A recent fix for 'perf trace' introduced a bug where
machine__exit(trace->host) could be called while trace->host was still
NULL, so make this more robust by guarding against NULL, just like
free() does.
Hello,
"perf top --stdio" (or perf kvm top --stdio) keyboard handling does not
work properly for me. Instead of accepting key presses, it just
displays the "Mapped keys:" help output always.
Seems to be related to this glibc 2.28 stdio change:
On Thu, 2019-04-04 at 10:48 +0200, Greg Kroah-Hartman wrote:
> 4.19-stable review patch. If anyone has any objections, please let
> me know.
>
> --
>
> [ Upstream commit 8184d44c9a577a2f1842ed6cc844bfd4a9981d8e ]
>
> Use recently introduced bpf_probe_prog_type() to skip tests
On Fri, 2019-04-26 at 05:48 -0700, Nathan Chancellor wrote:
> On Fri, Apr 26, 2019 at 11:41:30AM +0000, Rantala, Tommi T. (Nokia -
> FI/Espoo) wrote:
> > On Mon, 2019-04-15 at 20:58 +0200, Greg Kroah-Hartman wrote:
> > > commit 379d98ddf41344273d9718556f761420f4dc80b3 upstrea
On Mon, 2019-04-15 at 20:58 +0200, Greg Kroah-Hartman wrote:
> commit 379d98ddf41344273d9718556f761420f4dc80b3 upstream.
>
Hi,
With this patch in 4.14.112 build-id is now missing in vdso32.so:
$ file arch/x86/entry/vdso/vdso*so*
arch/x86/entry/vdso/vdso32.so: ELF 32-bit LSB pie executable,
Hello,
/proc/sys/kernel/sched_domain/ seems to be somewhat broken when kernel
is configured without CONFIG_CPUMASK_OFFSTACK and booting with
isolcpus= option.
Example with 8x CPU.
With CONFIG_CPUMASK_OFFSTACK=y and "isolcpus=2":
# uname -r
5.0.0-0.rc3.git0.1.fc30.x86_64
# ls
Hi,
Can you pick these patches to 4.14.y?
These fix some "perf test" errors seen when running in VM.
commit 10836d9f9ac63d40ccfa756f871ce4ed51ae3b52
Author: Jiri Olsa
Date: Mon Jul 3 16:50:30 2017 +0200
perf tests attr: Fix task term values
commit
From: Hailong Liu
commit e7de2590f18a272e63732b9d519250d1b522b2c4 upstream.
uio_mmap has multiple fail paths to set return value to nonzero then
goto out. However, it always returns *0* from the *out* at end, and
this will mislead callers who check the return value of this function.
Fixes:
From: Xiubo Li
commit 3d27c4de8d4fb2d4099ff324671792aa2578c6f9 upstream.
Since mutex lock in irq hanler is useless currently, here will
remove it together with it.
This reverts commit 9421e45f5ff3d558cf8b75a8cc0824530caf3453.
Reported-by: james.r.har...@intel.com
CC: Ahsan Atta
From: Xiubo Li
commit b34e9a15b37b8ddbf06a4da142b0c39c74211eb4 upstream.
The call trace:
XXX/1910 is trying to acquire lock:
(>mmap_sem){++}, at: [] might_fault+0x57/0xb0
but task is already holding lock:
(>info_lock){+.+...}, at: [] uio_write+0x46/0x130 [uio]
which lock already depends
From: Xiubo Li
commit 543af5861f41af0a5d2432f6fb5976af50f9cee5 upstream.
We are hitting a regression with the following commit:
commit a93e7b331568227500186a465fee3c2cb5dffd1f
Author: Hamish Martin
Date: Mon May 14 13:32:23 2018 +1200
uio: Prevent device destruction while fds are open
From: Xiubo Li
commit 57c5f4df0a5a0ee83df71251e2ee93a5e4e9 upstream.
For the target_core_user use case, after the device is unregistered
it maybe still opened in user space, then the kernel will crash, like:
[ 251.163692] BUG: unable to handle kernel NULL pointer dereference at
From: Hamish Martin
commit 81daa406c2cc97d85eef9409400404efc2a3f756 upstream.
Drive all return paths for uio_write() through a single block at the
end of the function.
Signed-off-by: Hamish Martin
Reviewed-by: Chris Packham
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Tommi Rantala
---
From: Xiubo Li
commit 9421e45f5ff3d558cf8b75a8cc0824530caf3453 upstream.
Prepraing for changing to use mutex lock.
Signed-off-by: Xiubo Li
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Tommi Rantala
---
drivers/uio/uio.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff
From: Hamish Martin
commit a93e7b331568227500186a465fee3c2cb5dffd1f upstream.
Prevent destruction of a uio_device while user space apps hold open
file descriptors to that device. Further, access to the 'info' member
of the struct uio_device is protected by spinlock. This is to ensure
stale
Backport uio fixes to 4.14, to fix use-after-free memory errors.
Changed __poll_t to unsigned int as the former not found in 4.14, and
resolved some patch context conflicts.
Hailong Liu (1):
uio: fix wrong return value from uio_mmap()
Hamish Martin (2):
uio: Reduce return paths from
On Wed, 2019-02-13 at 13:03 +, Rantala, Tommi T. (Nokia - FI/Espoo)
wrote:
> On Mon, 2019-02-11 at 15:19 +0100, Greg Kroah-Hartman wrote:
> > 4.14-stable review patch. If anyone has any objections, please let
> > me know.
> >
> > --
On Mon, 2019-02-11 at 15:19 +0100, Greg Kroah-Hartman wrote:
> 4.14-stable review patch. If anyone has any objections, please let
> me know.
>
> --
>
> From: Mark Rutland
>
> commit 9dff0aa95a324e262ffb03f425d00e4751f3294e upstream.
>
> The perf tool uses
Hi,
Can you pick this tiny one-liner patch to 4.4.y?
Fixes unexpected null byte in RCU "expedited stall" message.
commit ec3833ed02ae6ef2a933ece9de7cbab0c64c699e
Author: Paul E. McKenney
Date: Mon Jan 11 16:29:29 2016 -0800
rcu: Force boolean subscript for expedited stall warnings
Hi stable maintainers,
Can you consider including these "random" patches in 4.14.y?
These are very useful in fixing esp. first-bootup delays of VMs due to
entropy starvation.
commit 39a8883a2b989d1d21bd8dd99f5557f0c5e89694
Author: Theodore Ts'o
Date: Tue Jul 17 18:24:27 2018 -0400
Hi,
I hit use-after-free issues in UIO in 4.14.x, and discovered that it's
already fixed in later kernel versions:
commit a93e7b331568227500186a465fee3c2cb5dffd1f
Author: Hamish Martin
Date: Mon May 14 13:32:23 2018 +1200
uio: Prevent device destruction while fds are open
Can we have
Hi Greg,
Can you please revert this commit in 4.14?
commit e65cd9a20343ea90f576c24c38ee85ab6e7d5fec
Author: Tycho Andersen
Date: Tue Feb 20 19:47:47 2018 -0700
seccomp: add a selftest for get_metadata
[ Upstream commit d057dc4e35e16050befa3dda943876dab39cbf80 ]
Let's
Hi Greg,
Can you please pick these two upstream patches to 4.14?
They fix broken perf unwinding for me.
commit 3d20c6246690219881786de10d2dda93f616d0ac
Author: Martin Vuille <
jpm...@aim.com>
Date: Sun Feb 11 16:24:20 2018 -0500
perf unwind: Unwind with libdw doesn't take symfs into
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