xen-3.1.0 with kernel 2.6.20-xen-r2 does not work with tap aio device, though file based domU works fine. I used overlay for xen-3.1.0 with 2.6.18 which worked without problem on identical setup. Here is error when a domU boots up: XENBUS: Timeout connecting to device: device/vbd/769 (state 3) XENBUS: Timeout connecting to device: device/vbd/770 (state 3) XENBUS: Device with no driver: device/console/0 VFS: Cannot open root device "hda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) # emerge --info Portage 2.1.2.12 (default-linux/amd64/2007.0, gcc-4.1.2, glibc-2.5-r4, 2.6.20-xen-r20 x86_64) ================================================================= System uname: 2.6.20-xen-r20 x86_64 Intel(R) Xeon(TM) CPU 3.00GHz Gentoo Base System release 1.12.9 Timestamp of tree: Fri, 31 Aug 2007 17:00:10 +0000 app-shells/bash: 3.2_p17 dev-lang/python: 2.4.4-r4 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.9-r2 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.61 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.24 virtual/os-headers: 2.6.21 ACCEPT_KEYWORDS="amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/rsync_excludes" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="acl amd64 berkdb bitmap-fonts cli cracklib crypt cups dri fortran gdbm gpm iconv ipv6 isdnlog mbox midi mmx mudflap ncurses nls nptl nptlonly openmp pam pcre perl pppd python readline reflection session spl sse sse2 ssl tcpd truetype-fonts type1-fonts unicode xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="apm ark chips cirrus cyrix dummy fbdev glint i128 i810 mach64 mga neomagic nv r128 radeon rendition s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa vga via vmware voodoo" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS Simon
Probably an issue in the 2.6.20 kernel, please try the latest 2.6.18 xen kernel in portage to make sure it is still ok. I haven't tried the tap driver before but I'll take a look soon.
Yes. 2.6.18 kernel works ok. However, it would be nice to get 2.6.20 working since bnx2 driver got updated in 2.6.19 and later. The version of bnx2 with 2.6.18 and below does not work well on Dell's servers. Simon
I mean 2.6.18 xen kernel from portage tree.
It does not work with kernel-2.6.20-xen-r4 either. Simon
2.6.18-xen-r5 worked ok.
Are you running both kernels with the same config (xen parts)? Can you attach the 2.6.20 config?
I'm currently running 2.6.18-xen-r5 which doesn't work. None of the 2.6.20 kernels do. (Running AMD64 with Xen 3.1.0, gcc 4.1.2)
Created attachment 133070 [details] Kernel config file for 2.6.18-xen-r5 tap:aio works with 2.6.18-xen-r{3,4,5}.
Created attachment 133072 [details] Kernel config file for 2.6.20-xen-r4 tap:aio does not work even the kernel config file is the same as 2.6.18-xen-r5.
(In reply to comment #7) > I'm currently running 2.6.18-xen-r5 which doesn't work. None of the 2.6.20 > kernels do. > > (Running AMD64 with Xen 3.1.0, gcc 4.1.2) > The machines I use mostly have Xeon 5310 or Xeon 5320 CPU. I use 64bit Gentoo. Here is my build environment: Portage 2.1.3.9 (default-linux/amd64/2007.0, gcc-4.1.2, glibc-2.5-r4, 2.6.18-xen-r50 x86_64) ================================================================= System uname: 2.6.18-xen-r50 x86_64 Intel(R) Xeon(R) CPU L5320 @ 1.86GHz Timestamp of tree: Wed, 10 Oct 2007 02:30:01 +0000 app-shells/bash: 3.2_p17 dev-lang/python: 2.4.4-r5 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.9-r2 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61-r1 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17-r1 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.24 virtual/os-headers: 2.6.21 ACCEPT_KEYWORDS="amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=nocona -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/rsync_excludes" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="acl amd64 berkdb bitmap-fonts cli cracklib crypt cups dri fortran gdbm gpm iconv ipv6 isdnlog mbox midi mmx mudflap ncurses nls nptl nptlonly openmp pam pcre perl pppd python readline reflection session spl sse sse2 ssl tcpd truetype-fonts type1-fonts unicode xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="apm ark chips cirrus cyrix dummy fbdev glint i128 i810 mach64 mga neomagic nv r128 radeon rendition s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa vga via vmware voodoo" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTDIR_OVERLAY
Created attachment 133140 [details] Kernel configuration for kernel 2.6.18-xen-r5 (xen-sources)
I'm running 64 bit on an Opteron 246 system. Here's my build environment + kernel config: Portage 2.1.3.12 (default-linux/amd64/2007.0, gcc-4.2.1, glibc-2.6.1-r0, 2.6.18-xen-r5 x86_64) ================================================================= System uname: 2.6.18-xen-r5 x86_64 AMD Opteron(tm) Processor 246 Timestamp of tree: Thu, 11 Oct 2007 12:50:01 +0000 app-shells/bash: 3.2_p17-r1 dev-lang/python: 2.4.4-r4, 2.5.1-r2 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.10-r5 sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.13, 2.61-r1 sys-devel/automake: 1.4_p6, 1.5, 1.9.6-r2, 1.10 sys-devel/binutils: 2.18-r1 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.24 virtual/os-headers: 2.6.22-r2 ACCEPT_KEYWORDS="amd64 ~amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=opteron -O2 -pipe -mno-tls-direct-seg-refs" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-march=opteron -O2 -pipe -mno-tls-direct-seg-refs" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ http://ftp.uni-erlangen.de/pub/mirrors/gentoo ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ " MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="acl acpi amd64 berkdb bitmap-fonts bzip2 cli cracklib crypt cups dri expat fortran gdbm gnutls gpm iconv ipv6 isdnlog midi mmx mudflap ncurses nls nptl nptlonly openmp pam pcre perl pppd python readline reflection session spl sse sse2 ssl tcpd threads truetype-fonts type1-fonts xen xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="apm ark chips cirrus cyrix dummy fbdev glint i128 i810 mach64 mga neomagic nv r128 radeon rendition s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa vga via vmware voodoo" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
Checked 2.6.18-xen-r6 and 2.6.20-xen-r5. 2.6.18-xen-r6 worked, but 2.6.20-xen-r5 did not.
(In reply to comment #13) > Checked 2.6.18-xen-r6 and 2.6.20-xen-r5. > > 2.6.18-xen-r6 worked, but 2.6.20-xen-r5 did not. > Right, something went wrong in RedHat's port of xen from 2.6.18 to 2.6.20 for tap aio and I have not had a chance to debug it yet (or bug the redhat folks to see if they know anything). Or maybe I missed a patch in the redhat kernel that i should have copied over. I'll post a note here as soon as I have a chance to dig into this.
The ebuild files for 2.6.18-xen-r6 and 2.6.20-xen-r5 are basically same except the kernel and xen patch version. Maybe comparing patch version will provide some hints? It's kind of strange. 2.6.20 has higher version number for kernel patch, but lower version number for xen patch. Is that intentional? Why can't 2.6.20 use the same xen patch version? I would say the later version of xen patch may include the fix for tap:aio? Simon =========================================================================== $ diff /usr/portage/sys-kernel/xen-sources/xen-sources-2.6.18-r6.ebuild /usr/portage/sys-kernel/xen-sources/xen-sources-2.6.20-r5.ebuild 3c3 < # $Header: /var/cvsroot/gentoo-x86/sys-kernel/xen-sources/xen-sources-2.6.18-r6.ebuild,v 1.1 2007/10/10 23:37:10 marineam Exp $ --- > # $Header: /var/cvsroot/gentoo-x86/sys-kernel/xen-sources/xen-sources-2.6.20-r5.ebuild,v 1.1 2007/10/10 22:07:43 marineam Exp $ 8c8 < K_GENPATCHES_VER="10" --- > K_GENPATCHES_VER="19" 17c17 < XENPATCHES_VER="5" --- > XENPATCHES_VER="3" 23a24,25 > > DEPEND="${DEPEND} >=sys-devel/binutils-2.17"
(In reply to comment #15) > The ebuild files for 2.6.18-xen-r6 and 2.6.20-xen-r5 are basically same except > the kernel and xen patch version. Maybe comparing patch version will provide > some hints? Perhaps, but chances are it won't be so trivial. > > It's kind of strange. 2.6.20 has higher version number for kernel patch, but > lower version number for xen patch. Is that intentional? The xen-patches tarball for 2.6.18 includes security updates as well so it has to be updated frequently, the 2.6.20 kernel gets its security updates from genpatches instead so the xen patches tarball is only updated for xen bugfixes. > > Why can't 2.6.20 use the same xen patch version? Because Linux kernels can change a great deal between releases so RedHat's work to forward port xen to 2.6.20 was far from trivial. > > I would say the later version of xen patch may include the fix for tap:aio? If I or someone else has time to debug it...
Just wonder if there is any update on this. I've tried xen-sources-2.6.20-r6 with xen 3.1.2. The same problem remains.
Xen 4.1 in tree. Please test with it and reopen if it doesnt work
