On 2021/2/3 21:14, Martin Wilck wrote:
> On Wed, 2021-02-03 at 17:42 +0800, lixiaokeng wrote:
>>
>>
>> On 2021/2/3 16:14, Martin Wilck wrote:
>>> Is this also a Tested-by:?
>>> IOW, did it fix your issue?
>>
>> Yes, it solves the crash.But there is an other issue.
>>
>> multipath.conf
>> default
On 2/3/21 7:53 AM, Sergei Shtepa wrote:
> remap_and_filter - describes the new features that
> blk_interposer provides for device mapper.
>
> Signed-off-by: Sergei Shtepa
Hi--
Please see comments below.
> ---
> .../admin-guide/device-mapper/index.rst | 1 +
> .../device-mapper/remap_a
On Tue, 2 Feb 2021 19:09:44 -0800
Ivan Babrou wrote:
> On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou wrote:
> >
> > Hello,
> >
> > We've noticed the following regression in Linux 5.10 branch:
> >
> > [ 128.367231][C0]
> > ==
> >
On 2021/2/3 21:57, Martin Wilck wrote:
>> If exit() before all pthread_cancel in child of 0.7.7, there is no
>> any crash.
> What do you mean with "exit() before all pthread_cancel"? If this
> happens on pthread_cancel(), and you don't call that function, this
> would actually be expected.
When
On Tue, Feb 02, 2021 at 10:41:31PM +0100, mwi...@suse.com wrote:
> From: Martin Wilck
>
> udev_device_get_devnum() may fail, in which case it returns
> makedev(0, 0).
>
Reviewed-by: Benjamin Marzinski
> Signed-off-by: Martin Wilck
> ---
> libmultipath/discovery.c | 3 +++
> 1 file changed, 3
New 'noexcl' option allow to open underlying block-device
without FMODE_EXCL flag.
Signed-off-by: Sergei Shtepa
---
.../admin-guide/device-mapper/linear.rst | 26 ---
1 file changed, 23 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/device-mapper/linea
The 'noexcl' option allow to open underlying block-device
without FMODE_EXCL.
Signed-off-by: Sergei Shtepa
---
drivers/md/dm-linear.c| 14 +-
drivers/md/dm-table.c | 12 +++-
drivers/md/dm.c | 24 +---
drivers/md/dm.h
blk_mq_is_queue_frozen() allow to assert that the queue is frozen.
Signed-off-by: Sergei Shtepa
---
block/blk-mq.c | 13 +
include/linux/blk-mq.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f285a9123a8b..924ec26fae5f 100644
--
remap_and_filter - describes the new features that
blk_interposer provides for device mapper.
Signed-off-by: Sergei Shtepa
---
.../admin-guide/device-mapper/index.rst | 1 +
.../device-mapper/remap_and_filter.rst| 132 ++
2 files changed, 133 insertions(+)
create
New ioctl DM_DEV_REMAP_CMD allow to remap bio requests
from regular block device to dm device.
Signed-off-by: Sergei Shtepa
---
drivers/md/dm-core.h | 20 ++
drivers/md/dm-ioctl.c | 39
drivers/md/dm.c | 376 +-
include/uapi/l
blk_interposer allows to intercept bio requests, remap bio to another devices
or add new bios.
Signed-off-by: Sergei Shtepa
---
block/bio.c | 2 +
block/blk-core.c | 33
block/genhd.c | 82 +++
include/linu
Hi all.
I'm ready to suggest the block-layer interposer (blk_interposer).
blk_interposer allows to intercept bio requests, remap bio to another
devices or add new bios.
This patch series adds support blk_interposer for dm-linear.
In the first patch, I suggest the remap_and_filter.rst file.
Yes,
On Tue, Feb 02, 2021 at 10:41:30PM +0100, mwi...@suse.com wrote:
> From: Martin Wilck
>
> If start_waiter was set before and the "rescan" label was used,
> we may try to set up an empty/invalid map.
> Always fail if add_map_with_path() isn't successful.
>
> Signed-off-by: Martin Wilck
This pat
On Wed, 2021-02-03 at 18:48 +0800, lixiaokeng wrote:
>
>
> On 2021/2/3 4:52, Martin Wilck wrote:
> > did this fix your "crash on exit" issue?
>
> Unfortunately, the issue is not solved.
>
> There will be some different coredump stack.
>
> 0.8.5 (I'm not sure there are only two stacks in 0.8.5)
On Wed, 2021-02-03 at 17:42 +0800, lixiaokeng wrote:
>
>
> On 2021/2/3 16:14, Martin Wilck wrote:
> > Is this also a Tested-by:?
> > IOW, did it fix your issue?
>
> Yes, it solves the crash.But there is an other issue.
>
> multipath.conf
> defaults {
> find_multipaths no
> }
>
> [root
On Tue, Feb 02, 2021 at 07:09:44PM -0800, Ivan Babrou wrote:
> On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou wrote:
> > ==
> > [ 128.368523][C0] BUG: KASAN: stack-out-of-bounds in
> > unwind_next_frame (arch/x86/kernel/unwind_orc.
On Tue, Feb 02, 2021 at 10:27:26PM +0100, mwi...@suse.com wrote:
> From: Martin Wilck
>
> This is a spring-off of the previous discussion under the subject
> "libmultipath: fix NULL dereference in get_be64".
>
> Repeating part of the text of my last post there:
>
> pp->uid_attribute may be set
On Wed, Feb 03 2021 at 10:53am -0500,
Sergei Shtepa wrote:
> blk_interposer allows to intercept bio requests, remap bio to another devices
> or add new bios.
>
> Signed-off-by: Sergei Shtepa
> ---
> block/bio.c | 2 +
> block/blk-core.c | 33
> block/g
On Wed, Feb 03, 2021 at 06:53:56PM +0300, Sergei Shtepa wrote:
> --- a/include/uapi/linux/dm-ioctl.h
> +++ b/include/uapi/linux/dm-ioctl.h
> @@ -214,6 +214,15 @@ struct dm_target_msg {
> char message[0];
> };
>
> +enum {
> + REMAP_START_CMD = 1,
> + REMAP_FINISH_CMD,
Don't you nee
On Wed, Feb 03 2021 at 10:53am -0500,
Sergei Shtepa wrote:
> blk_mq_is_queue_frozen() allow to assert that the queue is frozen.
>
> Signed-off-by: Sergei Shtepa
> ---
> block/blk-mq.c | 13 +
> include/linux/blk-mq.h | 1 +
> 2 files changed, 14 insertions(+)
>
> diff --g
On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou wrote:
>
> Hello,
>
> We've noticed the following regression in Linux 5.10 branch:
>
> [ 128.367231][C0]
> ==
> [ 128.368523][C0] BUG: KASAN: stack-out-of-bounds in
> unwind_next_f
On Wed, 2021-02-03 at 09:33 +0800, lixiaokeng wrote:
>
>
> On 2021/2/3 3:57, mwi...@suse.com wrote:
> > From: Martin Wilck
> >
> > The description of 2d32d6f ("libmultipath: adopt_paths(): don't
> > bail out on
> > single path failure") said "we need to check after successful call
> > to
> > ad
On 2021/2/3 4:52, Martin Wilck wrote:
> did this fix your "crash on exit" issue?
Unfortunately, the issue is not solved.
There are 100 luns and two scripts to reproduce the issue.
#!/bin/bash
while true
do
for i in `seq 1 20`
do
udevadm trigger
done
On 2021/2/2 上午11:17, Darrick J. Wong wrote:
On Fri, Jan 29, 2021 at 02:27:55PM +0800, Shiyang Ruan wrote:
With the support of ->rmap(), it is possible to obtain the superblock on
a mapped device.
If a pmem device is used as one target of mapped device, we cannot
obtain its superblock directly
On 2021/2/2 上午10:41, Darrick J. Wong wrote:
On Fri, Jan 29, 2021 at 02:27:56PM +0800, Shiyang Ruan wrote:
This function is used to handle errors which may cause data lost in
filesystem. Such as memory failure in fsdax mode.
In XFS, it requires "rmapbt" feature in order to query for files or
пт, 22 янв. 2021 г. в 11:43, Ahmad Fatoum :
>
> IS_ENABLED(CONFIG_ENCRYPTED_KEYS) is true whether the option is built-in
> or a module, so use it instead of #if defined checking for each
> separately.
>
> The other #if was to avoid a static function defined, but unused
> warning. As we now always b
Hello Mike,
On 02.02.21 19:10, Mike Snitzer wrote:
> On Fri, Jan 22 2021 at 3:43am -0500,
> Ahmad Fatoum wrote:
>
>> IS_ENABLED(CONFIG_ENCRYPTED_KEYS) is true whether the option is built-in
>> or a module, so use it instead of #if defined checking for each
>> separately.
>>
>> The other #if was
On 22.01.21 20:04, Ahmad Fatoum wrote:
> On 22.01.21 19:18, Jarkko Sakkinen wrote:
>> On Fri, Jan 22, 2021 at 08:05:51PM +0200, Jarkko Sakkinen wrote:
>>> On Fri, Jan 22, 2021 at 09:43:21AM +0100, Ahmad Fatoum wrote:
Commit 27f5411a718c ("dm crypt: support using encrypted keys") extended
On 2021/2/3 16:14, Martin Wilck wrote:
> Is this also a Tested-by:?
> IOW, did it fix your issue?
Yes, it solves the crash.But there is an other issue.
multipath.conf
defaults {
find_multipaths no
}
[root@localhost coredump]# multipathd add path sdb
fail
[root@localhost coredump]# mu
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