similar to: Bug#414040: kernel: xen_net: Memory squeeze in netback driver.

Package: xen-hypervisor-3.0.3-1-amd64 Version: 3.0.3-0-2 Severity: grave Justification: renders package unusable This bug looks to be tracked in upstream: http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=762 Mailing list discussion here: http://lists.xensource.com/archives/html/xen-bugs/2006-11/msg00030.html -- System Information: Debian Release: 4.0 APT prefers testing APT policy:

Processing commands for control at bugs.debian.org: > # reassigning all open bugs reported against versioned xen packages that are no longer in the archive to src:xen > reassign 399073 src:xen 3.0.3-0-2 Bug #399073 [xen-hypervisor-3.0.3-1-i386] xen-hypervisor-3.0.3-1-i386: dom0 crashes with a domU that define more than 6 vdb Warning: Unknown package 'xen-hypervisor-3.0.3-1-i386' Bug

Processing commands for control at bugs.debian.org: > close 414040 Bug #414040 [src:xen] kernel: xen_net: Memory squeeze in netback driver. Marked Bug as done > thanks Stopping processing here. Please contact me if you need assistance. -- 414040: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=414040 Debian Bug Tracking System Contact owner at bugs.debian.org with problems

Processing commands for control@bugs.debian.org: > # Automatically generated email from bts, devscripts version 2.9.27 > # does not make the package unusable > severity 414040 important Bug#414040: kernel: xen_net: Memory squeeze in netback driver. Severity set to `important' from `grave' > End of message, stopping processing here. Please contact me if you need assistance.

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

This series implements NAPI + kthread 1:1 model for Xen netback. This model - provides better scheduling fairness among vifs - is prerequisite for implementing multiqueue for Xen network driver The first two patches are ground work for the third patch. They aim to reduce memory footprint of netback. The third patch has the real meat: - make use of NAPI to mitigate interrupt - kthreads are

# HG changeset patch # User Ian Campbell <ian.campbell@citrix.com> # Date 1233846695 0 # Node ID 7a24febd95d5abfc03e05de7fa991b11cef14eef # Parent 4f998fd102e24daa471482730d1a3ff68faa1ad6 netback: add ethtool stat to track copied skbs. copied skbs should be rare but we have no way of verifying that. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> diff -r 4f998fd102e2 -r

time_after_eq() only works if the delta is < MAX_ULONG/2. For a 32bit Dom0, if netfront sends packets at a very low rate, the time between subsequent calls to tx_credit_exceeded() may exceed MAX_ULONG/2 and the test for timer_after_eq() will be incorrect. Credit will not be replenished and the guest may become unable to send packets (e.g., if prior to the long gap, all credit was exhausted).

From: pbonzini@redhat.com # HG changeset patch # User Paolo Bonzini <pbonzini@redhat.com> # Date 1318837036 -7200 # Node ID eb896361fc70b60b9a257d0c82e19633a11b9d41 # Parent 3c900d6a5f6a51ff1547f21fef30ab8b92feccc9 netback: disable features not supported by netfront Netback works by first setting all possible features, and then resetting some after connection, if the front-end

Fixes error from sparse: CHECK drivers/net/xen-netback/xenbus.c drivers/net/xen-netback/xenbus.c:29:40: error: dubious one-bit signed bitfield int have_hotplug_status_watch:1; Reported-by: Dr. David Alan Gilbert <linux at treblig.org> Signed-off-by: Ian Campbell <ian.campbell at citrix.com> Cc: netdev at vger.kernel.org Cc: xen-devel at lists.xensource.com ---

Fixes error from sparse: CHECK drivers/net/xen-netback/xenbus.c drivers/net/xen-netback/xenbus.c:29:40: error: dubious one-bit signed bitfield int have_hotplug_status_watch:1; Reported-by: Dr. David Alan Gilbert <linux at treblig.org> Signed-off-by: Ian Campbell <ian.campbell at citrix.com> Cc: netdev at vger.kernel.org Cc: xen-devel at lists.xensource.com ---

--- drivers/net/xen-netback/common.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 477e5ab..f3d95b3 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -60,9 +60,9 @@ struct xenvif_rx_meta { #define MAX_BUFFER_OFFSET PAGE_SIZE #define

There is a typo here, "i" vs "j", so we would crash on module_exit(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index a0b50ad..130bcb2 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1968,8 +1968,8 @@ static void __exit

Hello, I was also hit by this problem. Perhaps it is related to the xen-netback module in the dom0 kernel? Have a look at: http://www.gossamer-threads.com/lists/xen/devel/275548 -- greetings eMHa -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: This is a digitally signed message part. URL:

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

hi I've some problems with netback 1.what's mmap_pages for, which come from balloon operation ？ mmap_pages = alloc_empty_pages_and_pagevec(MAX_PENDING_REQS) 2.what's the meaning of "refcnt" defined in netif_t (netif->refcnt) 3.irq enable and disable such as disable_irq(netif->irq); why netback use such enable & disable operations while netfront dont use for its

A buggy or malicious frontend should not be able to confuse netback. If we spot anything which is not as it should be then shutdown the device and don''t try to continue with the ring in a potentially hostile state. Well behaved and non-hostile frontends will not be penalised. As well as making the existing checks for such errors fatal also add a new check that ensures that there

hi, i''m having here the problem with bonding and crcchecksum. So as i read the mailing list the solution is to run ethtool -K eth0 tx off inside domU. So my domU is reachable. All is fine. But after i migrate (live) the domU to another machine the complete domU stopped. Und I also had one time this ugly Zombie thing in xm list and couldn''t reboot the machine (only power