search for: smaps

On 2019/1/7 ??11:28, Michael S. Tsirkin wrote: > On Mon, Jan 07, 2019 at 10:19:03AM +0800, Jason Wang wrote: >> On 2019/1/3 ??4:47, Michael S. Tsirkin wrote: >>> On Sat, Dec 29, 2018 at 08:46:51PM +0800, Jason Wang wrote: >>>> This series tries to access virtqueue metadata through kernel virtual >>>> address instead of copy_user() friends since they had

On 2019/1/7 ??11:28, Michael S. Tsirkin wrote: > On Mon, Jan 07, 2019 at 10:19:03AM +0800, Jason Wang wrote: >> On 2019/1/3 ??4:47, Michael S. Tsirkin wrote: >>> On Sat, Dec 29, 2018 at 08:46:51PM +0800, Jason Wang wrote: >>>> This series tries to access virtqueue metadata through kernel virtual >>>> address instead of copy_user() friends since they had

On 2019/1/3 ??4:47, Michael S. Tsirkin wrote: > On Sat, Dec 29, 2018 at 08:46:51PM +0800, Jason Wang wrote: >> This series tries to access virtqueue metadata through kernel virtual >> address instead of copy_user() friends since they had too much >> overheads like checks, spec barriers or even hardware feature >> toggling. > Will review, thanks! > One questions

On 2019/1/3 ??4:47, Michael S. Tsirkin wrote: > On Sat, Dec 29, 2018 at 08:46:51PM +0800, Jason Wang wrote: >> This series tries to access virtqueue metadata through kernel virtual >> address instead of copy_user() friends since they had too much >> overheads like checks, spec barriers or even hardware feature >> toggling. > Will review, thanks! > One questions

This appears to be the case in the recent messages in Debian bug #660425 [0] (thread starts at [1] and continues at [2]). SMAP uses EFLAGS.AC in kernel mode to indicate whether accesses to usermode pages should fault or not, which gets confused because under 64-bit Xen kernel == ring3. The obvious fix would be to clear SMAP from the cpuid features (probably in kernel as well as hypervosr) but

On Wed, Dec 26, 2018 at 11:57:32AM +0800, Jason Wang wrote: > > On 2018/12/25 ??8:50, Michael S. Tsirkin wrote: > > On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: > > > On 2018/12/25 ??2:10, Michael S. Tsirkin wrote: > > > > On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: > > > > > On 2018/12/14 ??8:36, Michael S. Tsirkin

On Wed, Dec 26, 2018 at 11:57:32AM +0800, Jason Wang wrote: > > On 2018/12/25 ??8:50, Michael S. Tsirkin wrote: > > On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: > > > On 2018/12/25 ??2:10, Michael S. Tsirkin wrote: > > > > On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: > > > > > On 2018/12/14 ??8:36, Michael S. Tsirkin

On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: > > On 2018/12/25 ??2:10, Michael S. Tsirkin wrote: > > On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: > > > On 2018/12/14 ??8:36, Michael S. Tsirkin wrote: > > > > On Fri, Dec 14, 2018 at 11:57:35AM +0800, Jason Wang wrote: > > > > > On 2018/12/13 ??11:44, Michael S. Tsirkin

On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: > > On 2018/12/25 ??2:10, Michael S. Tsirkin wrote: > > On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: > > > On 2018/12/14 ??8:36, Michael S. Tsirkin wrote: > > > > On Fri, Dec 14, 2018 at 11:57:35AM +0800, Jason Wang wrote: > > > > > On 2018/12/13 ??11:44, Michael S. Tsirkin

On Thu, Dec 27, 2018 at 05:39:21PM +0800, Jason Wang wrote: > > On 2018/12/26 ??11:02, Michael S. Tsirkin wrote: > > On Wed, Dec 26, 2018 at 11:57:32AM +0800, Jason Wang wrote: > > > On 2018/12/25 ??8:50, Michael S. Tsirkin wrote: > > > > On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: > > > > > On 2018/12/25 ??2:10, Michael S. Tsirkin

On Mon, Jan 07, 2019 at 11:53:41AM +0800, Jason Wang wrote: > > On 2019/1/7 ??11:28, Michael S. Tsirkin wrote: > > On Mon, Jan 07, 2019 at 10:19:03AM +0800, Jason Wang wrote: > > > On 2019/1/3 ??4:47, Michael S. Tsirkin wrote: > > > > On Sat, Dec 29, 2018 at 08:46:51PM +0800, Jason Wang wrote: > > > > > This series tries to access virtqueue metadata

Hi there, sorry for rather long mail. Two verbose dmesgs and `pciconf -vl` outputs attached. trying to set up new machine based on ASUS P4BGL-MX motherboard, I'd encountered hangs after detecting pcib1 (ICH2). MB has rl 8100 ethernet chip onboard. This is for 4.8-R; however, machine hangs in very similar way also with 4.4-R and 5.1-R. Matrix of hangs: Onboard Ether External Ether Result

On 2018/12/26 ??11:02, Michael S. Tsirkin wrote: > On Wed, Dec 26, 2018 at 11:57:32AM +0800, Jason Wang wrote: >> On 2018/12/25 ??8:50, Michael S. Tsirkin wrote: >>> On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: >>>> On 2018/12/25 ??2:10, Michael S. Tsirkin wrote: >>>>> On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote:

On 2018/12/25 ??8:50, Michael S. Tsirkin wrote: > On Tue, Dec 25, 2018 at 06:05:25PM +0800, Jason Wang wrote: >> On 2018/12/25 ??2:10, Michael S. Tsirkin wrote: >>> On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: >>>> On 2018/12/14 ??8:36, Michael S. Tsirkin wrote: >>>>> On Fri, Dec 14, 2018 at 11:57:35AM +0800, Jason Wang wrote:

Hi, there's a regression going from 6.2 to 6.3, where it will panic upon booting the kernel within vm_fault. This problem has been discussed before, but I'm seeing it reliably on a RELENG_6 checkout from 5th of May. It affects multiple (but identical) systems, here's an verbose boot leading to the panic. Please note that 6.2 was running fine on these machines, they also boot

Hi all, I have again noticed that the wiki does not really show up in search results and wonder if it has any impact that robots.txt on wiki.centos.org is empty. Perhaps it should at least contain User-agent: * ? Best Regards Marcus

On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: > > On 2018/12/14 ??8:36, Michael S. Tsirkin wrote: > > On Fri, Dec 14, 2018 at 11:57:35AM +0800, Jason Wang wrote: > > > On 2018/12/13 ??11:44, Michael S. Tsirkin wrote: > > > > On Thu, Dec 13, 2018 at 06:10:22PM +0800, Jason Wang wrote: > > > > > It was noticed that the copy_user()

On Mon, Dec 24, 2018 at 03:53:16PM +0800, Jason Wang wrote: > > On 2018/12/14 ??8:36, Michael S. Tsirkin wrote: > > On Fri, Dec 14, 2018 at 11:57:35AM +0800, Jason Wang wrote: > > > On 2018/12/13 ??11:44, Michael S. Tsirkin wrote: > > > > On Thu, Dec 13, 2018 at 06:10:22PM +0800, Jason Wang wrote: > > > > > It was noticed that the copy_user()

...0, Sven Schwedas wrote: > On 2017-05-05 10:09, Volker Lendecke wrote: > > On Fri, May 05, 2017 at 09:42:47AM +0200, Sven Schwedas via samba wrote: > >>> root 9988 0.8 59.4 1571936 606488 ? S Apr26 114:41 /usr/sbin/samba > > > > Can you post /proc/9988/smaps somewhere? > > Sure, http://up.tao.at/-0242609d03e69298bb27155078663d51/smaps.9988.txt Ok, it's actually the heap. I was hoping that it's a mmap'ed ldb. So we do have something fishy going on that. Sorry, I con't have an easy recipe. Volker -- SerNet GmbH, Bahnhofsallee 1...

On Fri, Dec 14, 2018 at 11:57:35AM +0800, Jason Wang wrote: > > On 2018/12/13 ??11:44, Michael S. Tsirkin wrote: > > On Thu, Dec 13, 2018 at 06:10:22PM +0800, Jason Wang wrote: > > > It was noticed that the copy_user() friends that was used to access > > > virtqueue metdata tends to be very expensive for dataplane > > > implementation like vhost since it