openSUSE Kernel February 2010

kernel@lists.opensuse.org

31 participants
33 discussions

[opensuse-kernel] Trim kernel-source package

by Jan Engelhardt

Greetings. The following is a submission to reduce the number of files that will be installed when one wants to compile kernel modules, offering saving both in time and space. Disks are touted as cheap, but let's face it, spending ~340 MB for kernel sources means you have 340 less for your personal files. The time savings should be obvious too: less files to install, and also less files to index — locatedb, quota, beagle/etc., you name it. This is especially beneficial for developers and OBS or OBS-like instances where packages are not only built in random order(*), but where the chroots are usually torn down everytime. (*) Calling build locally and manually, without --clean, and with the same buildroot everytime would allow for a time optimization when all KMPs are built after another, as big packages like kernel-* would not have to be reinstalled/deleted everytime. With this patch(set) — there is a bit of cleanup upfront —, the "kernel-devel" package is introduced which contains all (and only) the necessary files to support external module building. The entire source for personal recompilation orgies is moved out to "kernel-source", which now behaves like "kernel-source-vanilla" already did. The standalone sources' (kernel-source) path has been changed so as to not overlap with those used for module building, because people always trash their KMP build environment for the shipped kernel when they ran cloneconfig. Another desired side-effect of the so-codified separation into the kernel-devel package is that dangerous calls that would cause above-mentioned trashing are now completely inhibited. This modification has been tested with various kinds of free and non-free packages and kernel versions already. The latter is especially important because they are the most likely ones to break because of their awkward-to-horrid Makefiles. These have been made available for a long time already at jftp.medozas.de; the list includes at least: fglrx-kmp-default-8.681~2.6.31.11~jen93-jen0.x86_64.rpm ndiswrapper-kmp-default-1.55~2.6.31.11~jen93-3.4.jen2.x86_64.rpm nvidiagfx-kmp-default-190.53~2.6.31.11~jen93-jen8.x86_64.rpm nvidiagfx-legacy173-kmp-default-173.14.22~2.6.31.11~jen93-jen8.x86_64.rpm nvidiagfx-legacy71-kmp-default-71.86.11~2.6.31.11~jen93-jen8.x86_64.rpm nvidiagfx-legacy96-kmp-default-96.43.14~2.6.31.11~jen93-jen8.x86_64.rpm ttyrpld-kmp-default-2.60~2.6.31.11~jen93-jen4.x86_64.rpm virtualbox-modules-kmp-default-3.1.2_56127~2.6.31.12~jen93-jen0.x86_64.rpm vmware-modules-kmp-default-6.5.3~185404~2.6.31.12~jen93-jen3.x86_64.rpm xtables-addons-kmp-default-1.22~2.6.31.12~jen93-jen0.x86_64.rpm It was also tested with 2.6.32 and — since somebody decided out of the blue to rebase last week :-) — just now with .33-rc6 too. The resulting kernel-devel package is 10x smaller in installed size and has roughly 3x fewer files. The following changes since commit 69aad1a30e31d4f33ab56a1f195c7c4229c9dd66: Nikanth Karthikesan (1): - patches.fixes/dm-stripe-zero-stripes: dm-stripe: return -EINVAL if stripe count is zero (bnc#576312). are available in the git repository at: git://dev.medozas.de/suse-kernel less-source Jan Engelhardt (3): misc: use proper tar options kernel-source: use more macros kernel-source: split devel files and full-source doc/README.SUSE | 4 +- kernel-source.changes | 7 +++++ rpm/compute-PATCHVERSION.sh | 2 +- rpm/group-source-files | 33 +++++++++++++++++++++++++ rpm/kernel-binary.spec.in | 12 ++++---- rpm/kernel-source.spec.in | 56 +++++++++++++++++++++++++++++++++++++++---- rpm/kernel-syms.spec.in | 4 +- scripts/tar-up.sh | 2 +- 8 files changed, 103 insertions(+), 17 deletions(-) create mode 100755 rpm/group-source-files -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 3 months

[opensuse-kernel] A patch for openSUSE kernel 2.6.31

by Larry Finger

This patch is in mainline under the listed commit, and has been applied to the 2.6.32 stable tree. If possible, it should be included in the 2.6.31 kernel of openSUSE 11.2. Thanks, Larry Finger --- commit b6c3f5be7c6ac3375f44de4545c1ffe216b34022 Author: Larry Finger <Larry.Finger(a)lwfinger.net> Date: Tue Feb 2 10:08:19 2010 -0600 b43: Fix throughput regression Commit c7ab5ef9bcd281135c21b4732c9be779585181be entitled "b43: implement short slot and basic rate handling" reduced the transmit throughput for my BCM4311 device from 18 Mb/s to 0.7 Mb/s. The basic rate handling portion is OK, the problem is in the short slot handling. Prior to this change, the short slot enable/disable routines were never called. Experimentation showed that the critical part was changing the value at offset 0x0010 in the shared memory. This is supposed to contain the 802.11 Slot Time in usec, but if it is changed from its initial value of zero, performance is destroyed. On the other hand, changing the value in the MMIO register corresponding to the Interframe Slot Time increased performance from 18 to 22 Mb/s. A BCM4306/3 also shows dramatic improvement of the transmit rate from 5.3 to 19.0 Mb/s. Other changes in the patch include removal of the magic number for the MMIO register, and allowing the slot time to be set for any PHY operating in the 2.4 GHz band. Previously, the routine was executed only for G PHYs. Signed-off-by: Larry Finger <Larry.Finger(a)lwfinger.net> Cc: Stable <stable(a)kernel.org> [Any stable version back through 2.6.28] Signed-off-by: John W. Linville <linville(a)tuxdriver.com> diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index fe3bf94..c484cc2 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -115,6 +115,7 @@ #define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */ #define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */ #define B43_MMIO_RNG 0x65A +#define B43_MMIO_IFSSLOT 0x684 /* Interframe slot time */ #define B43_MMIO_IFSCTL 0x688 /* Interframe space control */ #define B43_MMIO_IFSCTL_USE_EDCF 0x0004 #define B43_MMIO_POWERUP_DELAY 0x6A8 diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 19b4eae..fcbf0e2 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -628,10 +628,17 @@ static void b43_upload_card_macaddress(struct b43_wldev *dev) static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) { /* slot_time is in usec. */ - if (dev->phy.type != B43_PHYTYPE_G) + /* This test used to exit for all but a G PHY. */ + if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) return; - b43_write16(dev, 0x684, 510 + slot_time); - b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); + b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time); + /* Shared memory location 0x0010 is the slot time and should be + * set to slot_time; however, this register is initially 0 and changing + * the value adversely affects the transmit rate for BCM4311 + * devices. Until this behavior is unterstood, delete this step + * + * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); + */ } static void b43_short_slot_timing_enable(struct b43_wldev *dev) -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 4 months

[opensuse-kernel] Current kernel in Factory does not boot - master works

by Andreas Jaeger

The current kernel in openSUSE Factory (rc7 based) does not boot on my laptop, it fails very early in the boot sequence. Updating to kernel head instead works for me. I propose to submit a new kernel to openSUSE:Factory asap. FYI: I see Kernel panic: Fatal exception in interrupt - and the rest is scrolled out of the screen and therefore not readable. This is on my Thinkpad x86-64 laptop with kernel-desktop, Andreas -- Andreas Jaeger, Program Manager openSUSE, aj(a){novell.com,opensuse.org} Twitter: jaegerandi | Identica: jaegerandi SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg) Maxfeldstr. 5, 90409 Nürnberg, Germany GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126

11 years, 4 months

[opensuse-kernel] Using OBS to publish a patched version of ext4 for 11.3 timeframe?

by Greg Freemyer

All, I just joined this list and I'm not sure it is the right place to post the question, so please point me in the right direction if this is wrong. I am working with a kernel project that does not yet any code in mainline. The kernel portion of the project has two major components, a ext4 patch (series) and a new module. I already have the new module in the OBS as a KPM. If feasible I'd like to use the OBS to publish a ext4 KMP package that replaces the default one for users that want to try out our new kernel module. Is that a simple possibility, or complex. Thanks Greg -- Greg Freemyer Head of EDD Tape Extraction and Processing team Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer Preservation and Forensic processing of Exchange Repositories White Paper - <http://www.norcrossgroup.com/forms/whitepapers/tng_whitepaper_fpe.html> The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 4 months

Re: [opensuse-kernel] Current kernel in Factory does not boot - master works

by Jan Beulich

This should be fixed now in kernel-git. Jan >>> Michal Marek <mmarek(a)suse.cz> 23.02.10 10:16 >>> On 23.2.2010 10:00, Andreas Jaeger wrote: > The current kernel in openSUSE Factory (rc7 based) does not boot on my laptop, > it fails very early in the boot sequence. > > Updating to kernel head instead works for me. I propose to submit a new > kernel to openSUSE:Factory asap. Current kernel-xen fails to build on Factory :( /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:179:26: error: variably modified 'tx_skbs' at file scope /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:180:26: error: variably modified 'rx_skbs' at file scope /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:184:27: error: variably modified 'grant_tx_ref' at file scope /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:186:27: error: variably modified 'grant_rx_ref' at file scope /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:193:29: error: variably modified 'rx_pfn_array' at file scope /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:194:32: error: variably modified 'rx_mcl' at file scope /usr/src/packages/BUILD/kernel-xen-2.6.33/linux-2.6.32/drivers/xen/netfront/netfront.h:195:27: error: variably modified 'rx_mmu' at file scope (https://build.opensuse.org/package/live_build_log?arch=x86_64&package=kerne…). Michal -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 4 months

[opensuse-kernel] gitorious clone of kernel-source

by Kshitij Kulshreshtha

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I was wondering why have there been no updates to the gitorious clone of the opensuse kernel-source repository [1] in the last two weeks. The last change was on Jan 12. As the KOTD kernel [2] has been changing since then almost every day I don't suppose there have been no commits. Thanks. [1] http://gitorious.org/opensuse/kernel-source [2] http://ftp.suse.com/pub/projects/kernel/kotd/master/ - -- Kshitij Kulshreshtha Institut für Mathematik, Fakultät Math. Nat. II, Humboldt-Universität zu Berlin, Raum 2.022, Rudower Chaussee 25, 12489 Berlin. Sterndamm 62, 12487 Berlin. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iQEcBAEBAgAGBQJLXZ6SAAoJEDWYtU3xIcMouY4H/jczoUADKzPEPLpa2cdRpExp 7riBH93h9xBEHEmUkFAPIXlNX5Yw/To0OLXu7r5OGQcL8EspSK6Rfb7BcfhNBn/4 LqicHX7b1Pjul9RPOWj2ElXIWBJ6NGvd/hFTlx30pfZNOHqnUBBuFwXUcX6q+/uI oztzcMl/RyH4LFjea9Lx57UWvcop5LRY2kKXgJd8yF+JvDee6EaPedKRIPN4s6tX U4LXQ/gdcawXBxCnWDJOlKe2ipHtrR7qc6RYfv1IHJVYlaUtiYJfZwBH+LYTRNaO q7V+1pB9yovC7SV1UBGzjZWJZ3z0W7wYFAHcykzg5zhVJXuZhKjte+pxL5Vqb5I= =84J2 -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 4 months

[opensuse-kernel] Short Question about webdavfs

by Sascha 'saigkill' Manns

Hello Mates, excuse me please for disturbing you. ATM in Kernel 2.6.31.12-0.1-desktop i can't mount an external webdav Folder. My boot.msg says: <3>[ 0.280957] tmpfs: No value for mount option 'mode' <6>[ 0.280957] devtmpfs: initialized I think it is maybe like: https://bugzilla.novell.com/show_bug.cgi?id=578064 Do you know, when this is fixed? Have a nice day... -- Sincerely yours Sascha Manns openSUSE Community & Support Agent openSUSE Marketing Team Blog: http://saigkill.wordpress.com Web: http://www.open-slx.de (openSUSE Box Support German) Web: http://www.open-slx.com (openSUSE Box Support English) -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 4 months

Re: [opensuse-kernel] Current kernel in Factory does not boot - master works

by Michael Matz

Hi, On Tue, 23 Feb 2010, Richard Guenther wrote: > On Tue, 23 Feb 2010, Jan Beulich wrote: > > > >>> Richard Guenther <rguenther(a)suse.de> 23.02.10 15:35 >>> > > >So that's a more convincing example to at least get consistency > > >here. I'll open a bug, but please fix the kernel to use offsetof. > > > > Yeah, I meanwhile got confirmation that this is going to be accepted > > upstream. > > Hm, but it is all fine according to 6.6 and 6.7.5.2 - the fine > reading differencing between integer constant expression and > constant initializer. Array sizes must be integer constant expression for the type to not be variably modified. All evaluated casts in integer constant expressions must convert arithmetic types to integer types. Pointer types are no arithmetic types. That's the catch which renders the whole thing invalid. Additionally (to Jan) 6.6/10 gives leeway only to accept other forms of constant expressions. Integer constant expressions are completely specified and are the ones that must be used in array lengths to make it not variably modified. Regarding the wish to not have to use stddef.h: that's premature. Even a freestanding conforming implementation (which means one that doesn't provide a full C library, exactly something that the kernel wants) is required to provide the <stddef.h> header. The kernel can make use of it, and probably is better off actually doing this, as ptrdiff_t, size_t and offsetof _are_ compiler specific. Unless the kernel wants to provide its own definitions for each compiler it wants to support, it better use the header that's designed for that. Ciao, Michael. -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 5 months

Re: [opensuse-kernel] Current kernel in Factory does not boot - master works

by Jan Beulich

>>> Richard Guenther <rguenther(a)suse.de> 23.02.10 15:51 >>> >Hm, but it is all fine according to 6.6 and 6.7.5.2 - the fine >reading differencing between integer constant expression and >constant initializer. But the part talking about the size expression of an array declaration specifically says "integer constant expression". So I think I can still only refer to "An implementation may accept other forms of constant expressions" being taken to support the construct in question by the majority of (or all?) compilers. Jan -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 5 months

Re: [opensuse-kernel] Current kernel in Factory does not boot - master works

by Jan Beulich

>>> Richard Guenther <rguenther(a)suse.de> 23.02.10 15:35 >>> >So that's a more convincing example to at least get consistency >here. I'll open a bug, but please fix the kernel to use offsetof. Yeah, I meanwhile got confirmation that this is going to be accepted upstream. Jan -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-kernel+help(a)opensuse.org

11 years, 5 months

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openSUSE Kernel February 2010