Re: [Qemu-devel] [PATCH] 9pfs: Correctly handle cancelled requests

2018-01-26 Thread Stefano Stabellini
On Tue, 23 Jan 2018, Greg Kurz wrote: > From: Keno Fischer > > # Background > > I was investigating spurious non-deterministic EINTR returns from > various 9p file system operations in a Linux guest served from the > qemu 9p server. > > ## EINTR, ERESTARTSYS and the linux kernel > > When a si

Re: [Qemu-devel] [PATCH] 9pfs: Correctly handle cancelled requests

2018-01-23 Thread Michael S. Tsirkin
On Tue, Jan 23, 2018 at 12:33:17PM +0100, Greg Kurz wrote: > From: Keno Fischer > > # Background > > I was investigating spurious non-deterministic EINTR returns from > various 9p file system operations in a Linux guest served from the > qemu 9p server. > > ## EINTR, ERESTARTSYS and the linux

[Qemu-devel] [PATCH] 9pfs: Correctly handle cancelled requests

2018-01-23 Thread Greg Kurz
From: Keno Fischer # Background I was investigating spurious non-deterministic EINTR returns from various 9p file system operations in a Linux guest served from the qemu 9p server. ## EINTR, ERESTARTSYS and the linux kernel When a signal arrives that the Linux kernel needs to deliver to user-

Re: [Qemu-devel] [PATCH] 9pfs: Correctly handle cancelled requests

2017-12-04 Thread Greg Kurz
On Sat, 2 Dec 2017 16:14:25 -0500 Keno Fischer wrote: > Hi Keno, > # Background > > I was investigating spurious, non-deterministic EINTR returns from > various 9p file system operations in a Linux guest served from the > qemu 9p server. > > ## EINTR, ERESTARTSYS and the linux kernel > > W

[Qemu-devel] [PATCH] 9pfs: Correctly handle cancelled requests

2017-12-02 Thread Keno Fischer
# Background I was investigating spurious, non-deterministic EINTR returns from various 9p file system operations in a Linux guest served from the qemu 9p server. ## EINTR, ERESTARTSYS and the linux kernel When a signal arrives that the Linux kernel needs to deliver to user-space while a given