Displaying 20 results from an estimated 400 matches similar to: "[PATCH V3 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write"
2013 Jul 19
6
[PATCH V2 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write
Hi,
This patch set fixes two bugs of splice_write in the virtio-console driver.
[BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write.
=> This induces oops in sg_init_table().
[BUG2] No lock for competition of splice_write.
=> This induces oops in splice_from_pipe_feed() by bug of any user
application.
These reports are written in each
2013 Jul 19
6
[PATCH V2 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write
Hi,
This patch set fixes two bugs of splice_write in the virtio-console driver.
[BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write.
=> This induces oops in sg_init_table().
[BUG2] No lock for competition of splice_write.
=> This induces oops in splice_from_pipe_feed() by bug of any user
application.
These reports are written in each
2013 Jul 19
0
[PATCH V2 2/2] [BUGFIX] virtio/console: Add pipe_lock/unlock for splice_write
Add pipe_lock/unlock for splice_write to avoid oops by following competition:
(1) An application gets fds of a trace buffer, virtio-serial, pipe.
(2) The application does fork()
(3) The processes execute splice_read(trace buffer) and
splice_write(virtio-serial) via same pipe.
<parent> <child>
get fds of a trace buffer,
virtio-serial, pipe
2013 Jul 19
0
[PATCH V2 1/2] [BUGFIX] virtio/console: Quit from splice_write if pipe->nrbufs is 0
Quit from splice_write if pipe->nrbufs is 0 for avoiding oops in virtio-serial.
When an application was doing splice from a kernel buffer to virtio-serial on
a guest, the application received signal(SIGINT). This situation will normally
happen, but the kernel executed a kernel panic by oops as follows:
BUG: unable to handle kernel paging request at ffff882071c8ef28
IP:
2012 Jul 24
13
[RFC PATCH 0/6] virtio-trace: Support virtio-trace
Hi All,
The following patch set provides a low-overhead system for collecting kernel
tracing data of guests by a host in a virtualization environment.
A guest OS generally shares some devices with other guests or a host, so
reasons of any problems occurring in a guest may be from other guests or a host.
Then, to collect some tracing data of a number of guests and a host is needed
when some
2012 Jul 24
13
[RFC PATCH 0/6] virtio-trace: Support virtio-trace
Hi All,
The following patch set provides a low-overhead system for collecting kernel
tracing data of guests by a host in a virtualization environment.
A guest OS generally shares some devices with other guests or a host, so
reasons of any problems occurring in a guest may be from other guests or a host.
Then, to collect some tracing data of a number of guests and a host is needed
when some
2012 Aug 09
8
[PATCH V2 0/6] virtio-trace: Support virtio-trace
Hi All,
The following patch set provides a low-overhead system for collecting kernel
tracing data of guests by a host in a virtualization environment.
A guest OS generally shares some devices with other guests or a host, so
reasons of any problems occurring in a guest may be from other guests or a host.
Then, to collect some tracing data of a number of guests and a host is needed
when some
2012 Aug 09
8
[PATCH V2 0/6] virtio-trace: Support virtio-trace
Hi All,
The following patch set provides a low-overhead system for collecting kernel
tracing data of guests by a host in a virtualization environment.
A guest OS generally shares some devices with other guests or a host, so
reasons of any problems occurring in a guest may be from other guests or a host.
Then, to collect some tracing data of a number of guests and a host is needed
when some
2013 Jul 19
0
[PATCH V2 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write
On (Fri) 19 Jul 2013 [18:19:51], Yoshihiro YUNOMAE wrote:
> Hi,
>
> This patch set fixes two bugs of splice_write in the virtio-console driver.
>
> [BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write.
> => This induces oops in sg_init_table().
>
> [BUG2] No lock for competition of splice_write.
> => This induces oops in
2013 Jul 22
0
[PATCH V3 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write
On (Mon) 22 Jul 2013 [13:00:43], Yoshihiro YUNOMAE wrote:
> Hi,
>
> This patch set fixes two bugs of splice_write in the virtio-console driver.
>
> [BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write.
> => This induces oops in sg_init_table().
>
> [BUG2] No lock for competition of splice_write.
> => This induces oops in
2012 Aug 22
5
[PATCH 0/5] trace-cmd: Add a recorder readable feature for virtio-trace
Hi Steven,
The following patch set provides a feature which can read trace data of a guest
using virtio-trace (https://lkml.org/lkml/2012/8/9/210) for a recorder
function of trace-cmd. This patch set depends on the trace-agent running on a
guest in the virtio-trace system.
To translate raw data of a guest to text data on a host, information of debugfs
in the guest is also needed on the host. In
2012 Aug 22
5
[PATCH 0/5] trace-cmd: Add a recorder readable feature for virtio-trace
Hi Steven,
The following patch set provides a feature which can read trace data of a guest
using virtio-trace (https://lkml.org/lkml/2012/8/9/210) for a recorder
function of trace-cmd. This patch set depends on the trace-agent running on a
guest in the virtio-trace system.
To translate raw data of a guest to text data on a host, information of debugfs
in the guest is also needed on the host. In
2013 Jul 19
0
[PATCH 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write
On (Fri) 19 Jul 2013 [08:19:27], Yoshihiro YUNOMAE wrote:
> Hi,
>
> This patch set fixes two bugs of splice_write in the virtio-console driver.
Oh, and please CC virtualization at lists.linux-foundation.org for any
virtio-related patches.
Thanks,
Amit
2013 Jul 19
0
[PATCH 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write
On (Fri) 19 Jul 2013 [08:19:27], Yoshihiro YUNOMAE wrote:
> Hi,
>
> This patch set fixes two bugs of splice_write in the virtio-console driver.
Oh, and please CC virtualization at lists.linux-foundation.org for any
virtio-related patches.
Thanks,
Amit
2008 May 15
3
[PATCH 1/4] ocfs2: Fixes pipe_buf_operations->pin switch to confirm in 2.6.23.
Signed-off-by: Tiger Yang <tiger.yang at oracle.com>
---
Config.make.in | 1 +
configure.in | 6 ++++++
fs/ocfs2/Makefile | 4 ++++
kapi-compat/include/pipe_buf_operations.h | 10 ++++++++++
4 files changed, 21 insertions(+), 0 deletions(-)
create mode 100644 kapi-compat/include/pipe_buf_operations.h
2012 Sep 25
5
[PATCHv6 0/3] virtio_console: Add rproc_serial device
From: Sjur Br?ndeland <sjur.brandeland at stericsson.com>
I thought rebasing rproc_serial to linux-next was going to be trivial.
But when starting the merge I realized that I had to refactor the
the patches from Masami Hiramatsu. The splice support has the same issue
as I faced, with different type of buffers in the out_vq.
So I ended up refactoring the splice functionality. The code
size
2012 Sep 25
5
[PATCHv6 0/3] virtio_console: Add rproc_serial device
From: Sjur Br?ndeland <sjur.brandeland at stericsson.com>
I thought rebasing rproc_serial to linux-next was going to be trivial.
But when starting the merge I realized that I had to refactor the
the patches from Masami Hiramatsu. The splice support has the same issue
as I faced, with different type of buffers in the out_vq.
So I ended up refactoring the splice functionality. The code
size
2007 Nov 06
6
size of template file
Hi,
How big a template file can be?
When I tested with a kind of large file (about 23KB, 570 lines),
puppetmasterd ended up with a segmentation fault.
Then I made the file shorter than original (about 6KB, 145 lines),
the file was created but it is shorter than it should be.
What I have is just 3994 bytes and 80 lines.
Replacing the string is done correctly.
I would like to know the limit of
2018 Apr 21
2
[PATCH 1/6] virtio_console: don't tie bufs to a vq
On Fri, Apr 20, 2018 at 09:18:01PM +0300, Michael S. Tsirkin wrote:
> an allocated buffer doesn't need to be tied to a vq -
> only vq->vdev is ever used. Pass the function the
> just what it needs - the vdev.
>
> Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
> ---
> drivers/char/virtio_console.c | 14 +++++++-------
> 1 file changed, 7 insertions(+),
2018 Apr 21
2
[PATCH 1/6] virtio_console: don't tie bufs to a vq
On Fri, Apr 20, 2018 at 09:18:01PM +0300, Michael S. Tsirkin wrote:
> an allocated buffer doesn't need to be tied to a vq -
> only vq->vdev is ever used. Pass the function the
> just what it needs - the vdev.
>
> Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
> ---
> drivers/char/virtio_console.c | 14 +++++++-------
> 1 file changed, 7 insertions(+),