similar to: [PATCH net-next 2/2] xen-netback: avoid allocating variable size array on stack

We''ve been hitting the following issue on a variety of hosts and recent Xen/dom0 version combinations. Here''s an excerpt from our latest: Xen: 4.1.4 (xenbits @ 23432) Dom0: 3.7.1-x86_64 BUG: unable to handle kernel NULL pointer dereference at 000000000000001c IP: [<ffffffff8141a301>] evtchn_from_irq+0x11/0x40 PGD 0 Oops: 0000 [#1] SMP Modules linked in: ebt_comment

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 Ian, Today i fired up an old VM with a bittorrent client, trying to download some torrents. I seem to be hitting the unlikely case of "xennet: skb rides the rocket: xx slots" and this results in some dropped packets in domU, I don''t see any warnings in dom0. I have added some extra info, but i don''t have enough knowledge if this could/should be prevented from

I''m trying to improve performance on the gpl pv drivers for windows, and am running into trouble with the sg stuff on the tx path. Taking an icmp packet as an example, windows formats the packet like this: sg entry 0 - Ethernet header sg entry 1 - IP header sg entry 2 - payload Those pieces could be anywhere inside the page. In netback.c, it appears that the sg magic happens inside

When using Textpattern with PHP Markdown Extra there is a problem with the textpattern tags. Tags like <txp:image id="42" /> are parsed, but tags like <txp:site_name /> that have an underscore are not. Any ideas how to deal with this? Thanks list, -- Peter Sinn peter.sinn at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL:

The Intel compiled version also fails the below test: > ###------------ Very big and very small > umach <- unlist(.Machine)[paste("double.x", c("min","max"), sep='')] > xmin <- umach[1] > xmax <- umach[2] > tx <- unique(outer(-1:1,c(.1,1e-3,1e-7)))# 7 values (out of 9) > tx <- unique(sort(c(outer(umach,1+tx))))# 11 values

This is a cherry pick of two patches that add support for guest paged out frames in the XCP 2.6.32 dom0 patch queue. First patch propagates the ENOENT returned by the hypervisor in the case of a paged out page, all the way up the call chain to the MMAPBATCH_V2 ioctl. The ioctl is mainly used to harvest those return values and retry. The second patch adds retry loops to all backend grant

Patrick, there following patches fix xenpaging for me. Granttable handling is incomplete. If a page is gone, a GNTST_eagain should be returned to the caller to inidcate the hypercall has to be retried after a while, until the page is available again. Please review. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Good morning, I'm having a bit of an issue getting a 3CR990B-TXM NIC detected and usable. Just wondering if anyone knows of any issues with this NIC chipset and/or with the motherboard chipset. The motherboard is a Biostar GeForce 6100 AM2 using an nVidia nForce 410 chipset and nVidia GeForce 6100 vide chipset. I've tried FreeBSD 6.1, 6.2, 6-STABLE (from Wed), and 7-CURRENT (from

Hi Michael: Sorry to brother. But I''ve been suffered this issue quite a long time. My test environment is 2.6.32.36 + xen 4.0.1 + bnx2, 2.3. Also cpu idle is disabled in grub. Grub info: title Red Hat Enterprise Linux Server (2.6.32.36xen) kernel /xen-4.0.1.gz iommu=off x2apic=off console=com1,vga com1=115200,8n1 noreboot cpuidle=0 cpufreq=none

Hi Keir: These two patches remove the need for netloop by performing the copying in netback and only if it is necessary. The rationale is that most packets will be processed without delay allowing them to be freed without copying at all. So instead of copying every packet destined to dom0 we''ll only copy those that linger longer than a specified amount of time (currently 0.5s). As it

Version 1.1 of my simple Rails weblog application, SimpleLog, has been released. There are a ton of new features. Here are just a few: * Support for PostgreSQL (SQLite support coming soon) * New preferences section of the admin tool * Many simplifications to forms to make posting even faster and easier, advanced settings are hidden by default (and easily expandable) * Added two new text filter

Is anyone else seeing this: perl @/kern/makeops.pl -h @/opencrypto/crypto_if.m rm -f .depend mkdep -f .depend -a -nostdinc -D_KERNEL -DKLD_MODULE -I- -I. -I@ -I@/../include -I/usr/obj/usr/local/src-STABLE/src/i386/usr/include /usr/local/src-STABLE/src/sys/modules/hifn/../../dev/hifn/hifn7751.c /usr/local/src-STABLE/src/sys/modules/hifn/../../dev/hifn/hifn7751.c:47: opt_hifn.h: No such file or

Hello Got strange problem with high system "%system load" and very slow user level programs (apache+php+mysql) behavior gstat shows 1.5-4% hard disk busy load but system shows about 20-30% load while user load is max 5%. vmstat shows from 2 to 35 process in "b" state. Now use 7.0-RELEASE-p5 , but the same problem was with 7.0-RELEASE. And have no idea what to do with this.

After updating my kernel from a 4.7-stable to 4.8-stable update, my SB PCI128 is no longer recognized by the pcm driver. Here is my dmesg: FreeBSD 4.8-STABLE #0: Thu Jul 17 14:13:52 CDT 2003 root@hautlos.stout.osu-res.okstate.edu:/usr/obj/usr/src/sys/GENERIC Timecounter "i8254" frequency 1193182 Hz CPU: AMD Athlon(tm) Processor (800.03-MHz 686-class CPU) Origin =

Hi ! I've been trying to improve NV50 shader generation a bit the last couple of weeks, so here is what I've produced. I don't know if it's usable for you or just a pile of horrible hacks, but at least it makes some mesa demos render more correcly, p.e. the teapot (aside from mip-mapping issues of the floor texture), arbfplight, and I think the gears also didn't appear as they

This patch rewrites all the miptree layout and transfer code in the pre-NV50 Gallium drivers. The code is also unified among them and put in the nv04 directory. The current code is broken in several ways: 1. 3D textures are laid out first by face, then by level, which is incorrect 2. Cube maps should have 128-byte aligned faces 3. Swizzled textures have a strange alignment test that seems

Changes: - Fixed some nv##_miptree that were not converted to nv04_miptree. - Disable swizzling on non-RGBA 2D textures, since the current 2D code is mostly broken in those cases. A later patch will fix this. Thanks to Andrew Randrianasulu who reported this. This patch rewrites all the miptree layout and transfer code in the pre-NV50 Gallium drivers. The code is also unified among them and

Hi, After kernel panic I couldn't get gdb work properly. msi$ uname -sr FreeBSD 4.7-RELEASE msi$ gdb -k /usr/src/sys/compile/MSINW/kernel.debug vmcore.0 GNU gdb 4.18 (FreeBSD) Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show

Hello I have some problems with 3Com nics, after a upgrade from 5.5-STABLE to 6.4-STABLE. This machine has two 3com nics (one is LAN other is WAN) and i see too much "watchdog timeout" on both cards. This on/off up/down on cards, affect the interrupt to clients that are downloading from apache web server, especially on large files. --------------------------------------------