similar to: Backtrace in xen/next-2.6.38 when running guest

Hello, I''m facing a rather strange problem with the netback interface. My setup involves a netvm, which has some physical network interfaces assigned, and a client VM where a net front is running (exposed as eth0) and which is connected to that netvm (via vif42.0 interface, as seen in the netvm on the dumps below). Now, the netvm has two physical network interfaces assigned: 1) A

Patch the Xen version of ring.h Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com> diff -r 8fc927798476 xen/include/public/io/ring.h --- a/xen/include/public/io/ring.h Tue Sep 01 11:36:51 2009 +0100 +++ b/xen/include/public/io/ring.h Thu Oct 01 02:11:45 2009 +0800 @@ -97,7 +97,8 @@ struct __name##_sring { struct __name##_sring { \

Hello we see the same with debian Wheezy. Apr 16 16:02:25 hypervisor3 kernel: [2441115.664216] vif vif-17-0: vif17.0: Frag is bigger than frame. Apr 16 16:02:25 hypervisor3 kernel: [2441115.664267] vif vif-17-0: vif17.0: fatal error; disabling device Apr 16 16:02:25 hypervisor3 kernel: [2441115.675667] BUG: unable to handle kernel NULL pointer dereference at 00000000000008b8 Apr 16 16:02:25

On Mon, 17 Jul 2017, Johnny Hughes wrote: > Are the testing kernels (kernel-4.9.37-29.el7 and kernel-4.9.37-29.el6, > with the one config file change) working for everyone: > > (turn off: CONFIG_IO_STRICT_DEVMEM) Hello. Maybe it's not the most appropriate thread or time, but I have been signalling it before: 4.9.* kernels do not work well for me any more (and for other people

Hi everyone, suppose I have a 2D matrix, is there a command to snip out a specific row/column and then remerge the remaining columns/rows back into a contiguous matrix? I will need to repeat this operation quite a bit(reverse selection). Thanks for any insights you can offer. Yifei

Package: xen-hypervisor-4.4-amd64 Version: 4.4.1-9 Severity: critical Justification: breaks the whole system Dear Maintainer, After upgrading the R610 server from Debian 7 to Debian 8, the dom0 becomes unresponsive via ssh after an hour or so, although the domUs still remain accessible. Initially we thought it may be a disk space issue on / or /boot so action was taken to increase those

I've been running 3.18.25-18.el6.x86_64 + our build of xen 4.4.3-9 on one host for the last couple of weeks and have gotten several soft lockups within the last 24 hours. I am posting here first in case anyone else has experienced the same issue. Here is the first instance: sched: RT throttling activated NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0] Modules linked in:

where is the source code of xen_blkback.ko xen_netback.ko? thanks _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

VM traffic is already limited by a throughput limit, but there is no control over the maximum packet per second (PPS). In DDOS attack the major issue is rather PPS than throughput. With provider offering more bandwidth to VMs, it becames easy to coordinate a massive attack using VMs. Example: 100Mbits ~ 200kpps using 64B packets. This patch provides a new option to limit VMs maximum packets per

Instead of mixing printk and pr_<level> forms, just use pr_<level> Miscellaneous changes around these conversions: Add a missing newline to avoid message interleaving, coalesce formats, reflow modified lines to 80 columns. Signed-off-by: Joe Perches <joe at perches.com> --- drivers/net/xen-netback/netback.c | 7 +++---- drivers/net/xen-netfront.c | 28

Instead of mixing printk and pr_<level> forms, just use pr_<level> Miscellaneous changes around these conversions: Add a missing newline to avoid message interleaving, coalesce formats, reflow modified lines to 80 columns. Signed-off-by: Joe Perches <joe at perches.com> --- drivers/net/xen-netback/netback.c | 7 +++---- drivers/net/xen-netfront.c | 28

Instead of mixing printk and pr_<level> forms, just use pr_<level> Miscellaneous changes around these conversions: Add a missing newline to avoid message interleaving, coalesce formats, reflow modified lines to 80 columns. Signed-off-by: Joe Perches <joe at perches.com> --- drivers/net/xen-netback/netback.c | 7 +++---- drivers/net/xen-netfront.c | 28

The code to detect fragments in checksum_setup() was missing for IPv4 and too eager for IPv6. (It transpires that Windows seems to send IPv6 packets with a fragment header even if they are not a fragment - i.e. offset is zero, and M bit is not set). Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com>

Add xen-backend:vif module alias to the xen-netback module. This allows automatic loading of the module. Signed-off-by: Bastian Blank <waldi at debian.org> Acked-by: Ian Campbell <ian.campbell at citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk at oracle.com> --- drivers/net/xen-netback/netback.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git

Add xen-backend:vif module alias to the xen-netback module. This allows automatic loading of the module. Signed-off-by: Bastian Blank <waldi at debian.org> Acked-by: Ian Campbell <ian.campbell at citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk at oracle.com> --- drivers/net/xen-netback/netback.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git

Add xen-backend:vif module alias to the xen-netback module. This allows automatic loading of the module. Signed-off-by: Bastian Blank <waldi at debian.org> Acked-by: Ian Campbell <ian.campbell at citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk at oracle.com> --- drivers/net/xen-netback/netback.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git

When counting required slots for skb, netback directly uses DIV_ROUND_UP to get slots required by header data. This is wrong when offset in the page of header data is not zero, and is also inconsistent with following calculation for required slot in netbk_gop_skb. In netbk_gop_skb, required slots are calculated based on offset and len in page of header data. It is possible that required slots

Reported-by: Nikita Borzykh <sample.n@gmail.com> Reported-by: Paul Harvey <stockingpaul@hotmail.com> Suggested-by: Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by: Matt Wilson <msw@amazon.com> --- drivers/net/xen-netback/interface.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/net/xen-netback/interface.c

Netback and netfront only use one event channel to do tx / rx notification. This may cause unnecessary wake-up of process routines. This patch adds a new feature called feautre-split-event-channel to netback, enabling it to handle Tx and Rx event separately. Netback will use tx_irq to notify guest for tx completion, rx_irq for rx notification. If frontend doesn''t support this feature,

Some old Windows frontends fail to transition through the xenbus Closing state and move directly from Connected to Closed. Handle this case properly. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> --- drivers/net/xen-netback/xenbus.c | 2 ++ 1