On Sun, Jul 21, 2013 at 11:36:25AM +0200, Arnd Bergmann wrote:
On Saturday 20 July 2013, Dan Carpenter wrote:
On Fri, Jul 19, 2013 at 12:28:41PM +0200, Arnd Bergmann wrote:
On Friday 19 July 2013, Dan Carpenter wrote:
debugfs_create_dir() returns ERR_PTR(-ENODEV) if debugfs is disabled.
I don't see where that oops would happen. In the code I'm looking at,
all uses of -debugfs_dir only ever get passed into other debugfs
functions that are stubbed out to empty inline functions.
It's not the most obvious interface design, but this all seems intentional
and correct to me.
Ah.
Hi Amit,
Sorry for the late reply.
(2013/07/19 19:05), Amit Shah wrote:
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.
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
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
