Re: [1/3] 2.6.21-rc7: known regressions (v2)

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Michal Čihař]

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Hi

On Tue, 24 Apr 2007 08:26:00 -0700
michal@cihar.com wrote:

> Adrian Bunk napsal:
> > Subject    : gammu no longer works
> > References : http://lkml.org/lkml/2007/4/20/84
> > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > Status     : unknown
> 
> As several people reported this issue to me, I debugged gammu and here
> are details: This is caused by setting fcntl(filehandle, F_SETFL,
> FASYNC). Consequent write(filehandle, ...) generate SIGIO, which end
> application. I'm still investigating why FASYNC was there and whether
> it is really needed, but it worked with it for ages (this code is
> there at least since 2004 where my VCS history ends).

Reply to myself... At the end it turned out that Gammu wrongly sets
async I/O while it doesn't want it and does not handle it. Till now no
driver which has been used didn't support it, so this issue has not been
caught. I just removed this code from Gammu, so this is IMHO not a
kernel regression.

PS: Please CC me on reply, I'm not subscribed.

-- 
	Michal Čihař | http://cihar.com | http://blog.cihar.com

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Linux 2.6.21-rc7

[Linus Torvalds]

Since we're still waiting for resolution for some regressions that people 
weren't able to work on last week, there's a new -rc kernel out there. 
Hopefully we'll get them all and I can do 2.6.21-final next weekend or 
so..

The changes from 2.6.21-rc6 are pretty small, and I'm including both the 
shortlog and the diffstat here since they both fit comfortably under the 
kernel mailing list size limits even when combined.

I really don't know what to say that would be more readable and 
informative than the shortlog. The HPET failsafe thing will hopefully 
resolve a few more bootup/resume issues.

Mostly driver fixes, some networking and NFS. Go wild!

		Linus

---
Adam Kropelin (1):
      HID: Do not discard truncated input reports

Alan Stern (1):
      EHCI: fix remote wakeup regression in 2.6.21-rc

Andrew Morton (3):
      x86_64 early quirks: fix early_qrk[] section tag
      i386: irqbalance_disable() section fix
      [PKTGEN]: Add try_to_freeze()

Bjorn Helgaas (1):
      cciss: unregister from SCSI before tearing down device resources

Brice Goglin (3):
      myri10ge: fix management of the firmware 4KB boundary crossing restriction
      myri10ge: more Intel chipsets providing aligned PCIe completions
      myri10ge: update driver version to 1.3.0-1.233

Cliff Brake (1):
      Input: ucb1400 - set up driver's name to show in sysfs

Daniel Drake (2):
      zd1211rw: Reject AL2230S devices
      zd1211rw: Fix E2P_PHY_REG patching

Danny Kukawka (1):
      ide: add "optical" to sysfs "media" attribute

David Brownell (2):
      omap_cf: oops-on-suspend fix
      doc: gpio.txt describes open-drain emulation

David Howells (1):
      FRV: Update the FRV arch MAINTAINER record to get a hit on "grep -i frv"

David S. Miller (7):
      [IPV6]: Revert recent change to rt6_check_dev().
      [TCP]: slow_start_after_idle should influence cwnd validation too
      [SPARC64]: Fix SBUS IOMMU allocation code.
      [SUNRPC]: Make sure on-stack cmsg buffer is properly aligned.
      [SPARC64]: Fix arg passing to compat_sys_ipc().
      [NETFILTER] arp_tables: Fix unaligned accesses.
      [SCSI] QLOGICPTI: Do not unmap DMA unless we actually mapped something.

Divy Le Ray (3):
      cxgb3 - avoid deadlock with mac watchdog
      cxgb3 - MAC watchdog update
      cxgb3 - missing CPL hanler and register setting.

Dmitry Torokhov (1):
      PM: use kobject_name() to access kobject names

Domen Puncer (1):
      [POWERPC] mpc52xx_pic: fix main interrupt masking

Emil Larsson (1):
      USB: Nikon D80 unusual device patch

Erez Zilber (1):
      IB/iser: Don't defer connection failure notification to workqueue

Herbert Xu (1):
      [SC92031]: Fix priv->lock context

Ingo Molnar (2):
      high-res timers: resume fix
      sched: get rid of p->children use in show_task()

Ishimatsu Yasuaki (1):
      [IA64] Fix wrong assumption about irq and vector in msi_ia64.c

James Bottomley (1):
      [SCSI] 3w-xxxx: fix oops caused by incorrect REQUEST_SENSE handling

Jaroslav Kysela (1):
      [NETFILTER]: ipt_CLUSTERIP: fix oops in checkentry function

Jeff Mahoney (1):
      autofs4: fix race in unhashed dentry code

Jerome Borsboom (1):
      [VLAN]: Allow VLAN interface on top of bridge interface

Joy Latten (1):
      [IPSEC] XFRM_USER: kernel panic when large security contexts in ACQUIRE

Larry Finger (2):
      bcm43xx: Fix 802.11b/g scan limits to match regulatory reqs
      bcm43xx: Fix PPC machine checks and match loopback gain specs

Linus Torvalds (2):
      sched.c: Remove unused variable 'relative'
      Linux 2.6.21-rc7

Michael Chan (1):
      [TG3]: Fix crash during tg3_init_one().

Michael S. Tsirkin (1):
      IPoIB/cm: Fix DMA direction typo

Mike Habeck (1):
      [IA64] SGI Altix : fix pcibr_dmamap_ate32() bug

Neil Brown (1):
      md: fix calculation for size of filemap_attr array in md/bitmap

Olaf Kirch (1):
      DVB: dvb-usb-remote - fix oops when changing keymap

Patrick McHardy (6):
      [XFRM]: beet: fix IP option encapsulation
      [XFRM]: beet: use IPOPT_NOP for option padding
      [XFRM]: beet: fix beet mode decapsulation
      [XFRM]: beet: fix IP option decapsulation
      [NET_SCHED]: cls_tcindex: fix compatibility breakage
      [NETFILTER]: ipt_ULOG: use put_unaligned

Randy Dunlap (1):
      fix kernel oops with badly formatted module option

Ravikiran G Thirumalai (1):
      failsafe mechanism to HPET clock calibration

Robert Reif (1):
      [SPARC]: Fix section mismatch warnings in pci.c and pcic.c

Roland McGrath (1):
      [SPARC]: avoid CHILD_MAX and OPEN_MAX constants

Russ Anderson (1):
      [IA64] BTE error timer fix

Stefan Richter (1):
      ieee1394: change deprecation status of dv1394

Stephen Hemminger (5):
      skge: turn carrier off when down
      sky2: turn carrier off when down
      sky2: turn on clocks when doing resume
      sky2: phy workarounds for Yukon EC-U A1
      skge: fix wake on lan

Steve Wise (1):
      RDMA/cxgb3: Add set_tcb_rpl_handler

Stuart Hayes (1):
      ide: ugly messages trying to open CD drive with no media present

Suleiman Souhlal (1):
      ide: correctly prevent IDE timer expiry function to run if request was already handled

Tejun Heo (1):
      irq-devres: fix failure path of devm_request_irq()

Timo Savola (1):
      fuse: validate rootmode mount option

Tom "spot" Callaway (1):
      [SPARC64]: Fix inline directive in pci_iommu.c

Trond Myklebust (4):
      NFS: Fix an Oops in nfs_setattr()
      NFS: Fix two bugs in the O_DIRECT write code
      NFS: Ensure PG_writeback is cleared when writeback fails
      NFS: Fix a list corruption problem

Venki Pallipadi (1):
      [IA64] Fix CPU freq displayed in /proc/cpuinfo

Vitaly Bordug (3):
      [PPC] MPC8272 ADS compile fixed, defconfig refreshed.
      [PPC] Fix compilation and linking errors of mpc885ads build.
      [PPC] Fix compilation and linking errors of mpc86xads build.

Vladimir Saveliev (1):
      reiserfs: fix key decrementing

Wang Zhenyu (2):
      [AGPGART] intel_agp: PCI id update for Intel 965GM
      [AGPGART] intel_agp: fix G965 GTT size detect

Wu, Bryan (1):
      nommu: fix bug ip_conntrack does not work on nommu

YOSHIFUJI Hideaki (1):
      [IPV6] SNMP: Fix {In,Out}NoRoutes statistics.

Zachary Amsden (2):
      Proper fix for highmem kmap_atomic functions for VMI for 2.6.21
      Fix VMI relocation processing logic error

---
 Documentation/ABI/obsolete/dv1394            |    9 +
 Documentation/feature-removal-schedule.txt   |   11 -
 Documentation/gpio.txt                       |   31 ++-
 MAINTAINERS                                  |    2 +-
 Makefile                                     |    2 +-
 arch/i386/kernel/io_apic.c                   |    2 +-
 arch/i386/kernel/vmi.c                       |   32 ++-
 arch/i386/mm/highmem.c                       |    2 +
 arch/ia64/kernel/msi_ia64.c                  |    4 +-
 arch/ia64/kernel/setup.c                     |    2 +-
 arch/ia64/sn/kernel/bte_error.c              |    6 +-
 arch/ia64/sn/pci/pcibr/pcibr_dma.c           |    8 +-
 arch/powerpc/platforms/52xx/mpc52xx_pic.c    |    4 +-
 arch/ppc/8xx_io/commproc.c                   |   26 ++
 arch/ppc/configs/ads8272_defconfig           |  592 ++++++++++++++++++++------
 arch/ppc/platforms/mpc8272ads_setup.c        |   17 +-
 arch/ppc/platforms/mpc866ads_setup.c         |   17 +-
 arch/ppc/platforms/mpc885ads_setup.c         |   20 +-
 arch/sparc/kernel/pcic.c                     |    4 +-
 arch/sparc/kernel/sys_sunos.c                |    4 +-
 arch/sparc64/kernel/pci.c                    |    4 +-
 arch/sparc64/kernel/pci_iommu.c              |    2 +-
 arch/sparc64/kernel/sbus.c                   |  560 ++++++++++--------------
 arch/sparc64/kernel/sys32.S                  |    1 -
 arch/sparc64/kernel/sys_sunos32.c            |    4 +-
 arch/sparc64/kernel/systbls.S                |    2 +-
 arch/sparc64/solaris/misc.c                  |    6 +-
 arch/x86_64/kernel/early-quirks.c            |    2 +-
 arch/x86_64/kernel/hpet.c                    |    9 +-
 drivers/base/power/main.c                    |    6 +-
 drivers/block/cciss.c                        |   35 +-
 drivers/char/agp/intel-agp.c                 |   17 +-
 drivers/hid/hid-core.c                       |    2 +-
 drivers/ide/ide-cd.c                         |    9 +
 drivers/ide/ide-io.c                         |    6 +-
 drivers/ide/ide-iops.c                       |    2 +
 drivers/ide/ide.c                            |    2 +
 drivers/ieee1394/Kconfig                     |    6 +-
 drivers/ieee1394/dv1394.c                    |    4 +-
 drivers/infiniband/hw/cxgb3/iwch_cm.c        |   12 +
 drivers/infiniband/ulp/ipoib/ipoib_cm.c      |    2 +-
 drivers/infiniband/ulp/iser/iscsi_iser.h     |    1 -
 drivers/infiniband/ulp/iser/iser_verbs.c     |   40 +-
 drivers/input/touchscreen/ucb1400_ts.c       |    1 +
 drivers/md/bitmap.c                          |    4 +-
 drivers/media/dvb/dvb-usb/dvb-usb-remote.c   |    2 -
 drivers/net/cxgb3/common.h                   |    7 +-
 drivers/net/cxgb3/cxgb3_main.c               |   16 +-
 drivers/net/cxgb3/cxgb3_offload.c            |   14 +-
 drivers/net/cxgb3/regs.h                     |    6 +
 drivers/net/cxgb3/xgmac.c                    |  107 ++++--
 drivers/net/myri10ge/myri10ge.c              |   37 ++-
 drivers/net/sc92031.c                        |   20 +-
 drivers/net/skge.c                           |   93 +++--
 drivers/net/sky2.c                           |   12 +-
 drivers/net/tg3.c                            |    6 +-
 drivers/net/wireless/bcm43xx/bcm43xx_main.c  |   20 +-
 drivers/net/wireless/bcm43xx/bcm43xx_phy.c   |   57 ++--
 drivers/net/wireless/zd1211rw/zd_chip.c      |   12 +-
 drivers/net/wireless/zd1211rw/zd_chip.h      |    4 +-
 drivers/net/wireless/zd1211rw/zd_rf_al2230.c |    6 +
 drivers/pcmcia/omap_cf.c                     |   41 ++-
 drivers/scsi/3w-xxxx.c                       |   11 +-
 drivers/scsi/qlogicpti.c                     |    2 +-
 drivers/usb/host/ehci-hcd.c                  |    1 +
 drivers/usb/storage/unusual_devs.h           |    7 +
 fs/autofs4/root.c                            |    6 +-
 fs/fuse/dir.c                                |    5 +-
 fs/fuse/fuse_i.h                             |    5 +
 fs/fuse/inode.c                              |    2 +
 fs/nfs/dir.c                                 |    3 +-
 fs/nfs/direct.c                              |   11 +-
 fs/nfs/inode.c                               |    6 +-
 fs/nfs/write.c                               |   22 +-
 fs/reiserfs/item_ops.c                       |    2 +-
 include/asm-generic/pgtable.h                |    2 +
 include/asm-i386/paravirt.h                  |    3 +
 include/asm-ia64/sn/pcibr_provider.h         |    5 +-
 include/linux/hrtimer.h                      |    3 +
 include/linux/ide.h                          |    2 +
 include/linux/nfs_page.h                     |    1 -
 kernel/hrtimer.c                             |   12 +
 kernel/irq/devres.c                          |    2 +-
 kernel/params.c                              |    4 +
 kernel/sched.c                               |   36 +--
 kernel/timer.c                               |    2 +-
 mm/nommu.c                                   |    1 +
 net/8021q/vlan_dev.c                         |    3 +
 net/core/pktgen.c                            |    3 +
 net/ipv4/netfilter/arp_tables.c              |   10 +-
 net/ipv4/netfilter/ipt_CLUSTERIP.c           |    2 -
 net/ipv4/netfilter/ipt_ULOG.c                |    7 +-
 net/ipv4/tcp_output.c                        |    3 +-
 net/ipv4/xfrm4_mode_beet.c                   |   26 +-
 net/ipv6/route.c                             |   48 +-
 net/sched/cls_tcindex.c                      |    4 +-
 net/sunrpc/svcsock.c                         |   16 +-
 net/xfrm/xfrm_user.c                         |    7 +-
 98 files changed, 1415 insertions(+), 864 deletions(-)
 create mode 100644 Documentation/ABI/obsolete/dv1394

[1/3] 2.6.21-rc7: known regressions (v2)

[Adrian Bunk]

This email lists some known regressions in Linus' tree compared to 2.6.20.

If you find your name in the Cc header, you are either submitter of one
of the bugs, maintainer of an affectected subsystem or driver, a patch
of you caused a breakage or I'm considering you in any other way
possibly involved with one or more of these issues.

Due to the huge amount of recipients, please trim the Cc when answering.


Subject    : gammu no longer works
References : http://lkml.org/lkml/2007/4/20/84
Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
Status     : unknown


Subject    : hal daemon crashes after pulling a USB serial device
References : http://www.opensubscriber.com/message/linux-usb-devel@lists.sourceforge.net/6369800.html
Submitter  : Andi Kleen <ak@suse.de>
Handled-By : Oliver Neukum <oneukum@suse.de>
Status     : problem is being debugged


Subject    : Oops when changing USB DVB-T adapter
References : http://lkml.org/lkml/2007/3/9/212
             http://lkml.org/lkml/2007/4/5/154
Submitter  : CIJOML <cijoml@volny.cz>
Handled-By : Markus Rechberger <markus.rechberger@amd.com>
Status     : patches available


Subject    : snd_hda_intel doesn't work with ASUS M2V mainboard
References : http://bugzilla.kernel.org/show_bug.cgi?id=8273
Submitter  : Hans-Georg Rist <hg.rist@web.de>
Status     : unknown


Subject    : snd_intel8x0: divide error: 0000
References : http://lkml.org/lkml/2007/3/5/252
Submitter  : Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Handled-By : Takashi Iwai <tiwai@suse.de>
Patch      : http://lkml.org/lkml/2007/4/20/117
Status     : patch available

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Greg KH]

On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> This email lists some known regressions in Linus' tree compared to 2.6.20.
> 
> If you find your name in the Cc header, you are either submitter of one
> of the bugs, maintainer of an affectected subsystem or driver, a patch
> of you caused a breakage or I'm considering you in any other way
> possibly involved with one or more of these issues.
> 
> Due to the huge amount of recipients, please trim the Cc when answering.
> 
> 
> Subject    : gammu no longer works
> References : http://lkml.org/lkml/2007/4/20/84
> Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> Status     : unknown

I've asked for more information about this, and so far am not sure it's
a real problem.

thanks,

greg k-h

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Wolfgang Erig]

On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
> On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > 
> > If you find your name in the Cc header, you are either submitter of one
> > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > of you caused a breakage or I'm considering you in any other way
> > possibly involved with one or more of these issues.
> > 
> > Due to the huge amount of recipients, please trim the Cc when answering.
> > 
> > 
> > Subject    : gammu no longer works
> > References : http://lkml.org/lkml/2007/4/20/84
> > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > Status     : unknown
> 
> I've asked for more information about this, and so far am not sure it's
> a real problem.

It is a real problem for me.
I tried this on 2 different boxes with the same behaviour.
No sync between my Nokia mobile and Linux with the latest kernel :(

Which additional information is useful for this problem?

Wolfgang


$ gammu textall --backup backup
Press Ctrl+C to break...
[Gammu            - 1.10.0 built 10:15:07 Mar 13 2007 in gcc 4.1]
[Connection       - "fbuspl2303"]
[Model type       - "3100"]
[Device           - "/dev/ttyUSB0"]
[Run on           - Linux, kernel 2.6.21-rc7-g80d74d51 (#9 SMP Wed Apr 18 21:41:41 CEST 2007)]
[Module           - "1100|1100a|1100b|2650|3100|3100b|3105|3108|3200|3200a|3205|3220|3300|3510|3510i|3530|3589i|3590|3595|5100|5140|5140i|6020|6021|6030|6100|6101|6103|6111|6125|6131|6170|6200|6220|6230|6230i|6233|6234|6270|6280|6310|6310i|6385|6510|6610|6610i|6800|6810|6820|6822|7200|7210|7250|7250i|7260|7270|7360|7370|7600|8310|8390|8910|8910i"]
Setting speed to 19200
I/O possible

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Greg KH]

On Tue, Apr 24, 2007 at 11:32:53AM +0200, Wolfgang Erig wrote:
> On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
> > On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> > > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > > 
> > > If you find your name in the Cc header, you are either submitter of one
> > > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > > of you caused a breakage or I'm considering you in any other way
> > > possibly involved with one or more of these issues.
> > > 
> > > Due to the huge amount of recipients, please trim the Cc when answering.
> > > 
> > > 
> > > Subject    : gammu no longer works
> > > References : http://lkml.org/lkml/2007/4/20/84
> > > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > > Status     : unknown
> > 
> > I've asked for more information about this, and so far am not sure it's
> > a real problem.
> 
> It is a real problem for me.
> I tried this on 2 different boxes with the same behaviour.
> No sync between my Nokia mobile and Linux with the latest kernel :(

Sorry, I didn't see your response, have followed up on lkml now.

thanks,

greg k-h

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Adrian Bunk]

On Tue, Apr 24, 2007 at 05:14:28PM -0700, Greg KH wrote:
> On Tue, Apr 24, 2007 at 11:32:53AM +0200, Wolfgang Erig wrote:
> > On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
> > > On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> > > > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > > > 
> > > > If you find your name in the Cc header, you are either submitter of one
> > > > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > > > of you caused a breakage or I'm considering you in any other way
> > > > possibly involved with one or more of these issues.
> > > > 
> > > > Due to the huge amount of recipients, please trim the Cc when answering.
> > > > 
> > > > 
> > > > Subject    : gammu no longer works
> > > > References : http://lkml.org/lkml/2007/4/20/84
> > > > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > > > Status     : unknown
> > > 
> > > I've asked for more information about this, and so far am not sure it's
> > > a real problem.
> > 
> > It is a real problem for me.
> > I tried this on 2 different boxes with the same behaviour.
> > No sync between my Nokia mobile and Linux with the latest kernel :(
> 
> Sorry, I didn't see your response, have followed up on lkml now.

It turned out this was actually a bug in Gammu that will be fixed in 
the next release of Gammu.

> thanks,
> 
> greg k-h

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Greg KH]

On Wed, Apr 25, 2007 at 02:29:58AM +0200, Adrian Bunk wrote:
> On Tue, Apr 24, 2007 at 05:14:28PM -0700, Greg KH wrote:
> > On Tue, Apr 24, 2007 at 11:32:53AM +0200, Wolfgang Erig wrote:
> > > On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
> > > > On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> > > > > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > > > > 
> > > > > If you find your name in the Cc header, you are either submitter of one
> > > > > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > > > > of you caused a breakage or I'm considering you in any other way
> > > > > possibly involved with one or more of these issues.
> > > > > 
> > > > > Due to the huge amount of recipients, please trim the Cc when answering.
> > > > > 
> > > > > 
> > > > > Subject    : gammu no longer works
> > > > > References : http://lkml.org/lkml/2007/4/20/84
> > > > > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > > > > Status     : unknown
> > > > 
> > > > I've asked for more information about this, and so far am not sure it's
> > > > a real problem.
> > > 
> > > It is a real problem for me.
> > > I tried this on 2 different boxes with the same behaviour.
> > > No sync between my Nokia mobile and Linux with the latest kernel :(
> > 
> > Sorry, I didn't see your response, have followed up on lkml now.
> 
> It turned out this was actually a bug in Gammu that will be fixed in 
> the next release of Gammu.

Ah, ok, thanks for letting me know.

But how was the kernel version change triggering it?

greg k-h

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Adrian Bunk]

On Tue, Apr 24, 2007 at 05:51:11PM -0700, Greg KH wrote:
> On Wed, Apr 25, 2007 at 02:29:58AM +0200, Adrian Bunk wrote:
> > On Tue, Apr 24, 2007 at 05:14:28PM -0700, Greg KH wrote:
> > > On Tue, Apr 24, 2007 at 11:32:53AM +0200, Wolfgang Erig wrote:
> > > > On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
> > > > > On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> > > > > > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > > > > > 
> > > > > > If you find your name in the Cc header, you are either submitter of one
> > > > > > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > > > > > of you caused a breakage or I'm considering you in any other way
> > > > > > possibly involved with one or more of these issues.
> > > > > > 
> > > > > > Due to the huge amount of recipients, please trim the Cc when answering.
> > > > > > 
> > > > > > 
> > > > > > Subject    : gammu no longer works
> > > > > > References : http://lkml.org/lkml/2007/4/20/84
> > > > > > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > > > > > Status     : unknown
> > > > > 
> > > > > I've asked for more information about this, and so far am not sure it's
> > > > > a real problem.
> > > > 
> > > > It is a real problem for me.
> > > > I tried this on 2 different boxes with the same behaviour.
> > > > No sync between my Nokia mobile and Linux with the latest kernel :(
> > > 
> > > Sorry, I didn't see your response, have followed up on lkml now.
> > 
> > It turned out this was actually a bug in Gammu that will be fixed in 
> > the next release of Gammu.
> 
> Ah, ok, thanks for letting me know.
> 
> But how was the kernel version change triggering it?

I don't know, perhaps a side effect of Eric's work in kernel/signal.c?

The bug in Gammu was:
- Gammu wrongly set FASYNC in a fcntl() call.
- The unhandled SIGIO terminated Gammu in 2.6.21-rc.

Gammu being terminated by the SIGIO seems to be expected and documented 
behavior, and the surprising thing is that it wasn't terminated with 
earlier kernels.

> greg k-h

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Eric W. Biederman]

Adrian Bunk <bunk@stusta.de> writes:

> On Tue, Apr 24, 2007 at 05:51:11PM -0700, Greg KH wrote:
>> On Wed, Apr 25, 2007 at 02:29:58AM +0200, Adrian Bunk wrote:
>> > On Tue, Apr 24, 2007 at 05:14:28PM -0700, Greg KH wrote:
>> > > On Tue, Apr 24, 2007 at 11:32:53AM +0200, Wolfgang Erig wrote:
>> > > > On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
>> > > > > On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
>> > > > > > This email lists some known regressions in Linus' tree compared to
> 2.6.20.
>> > > > > > 
>> > > > > > If you find your name in the Cc header, you are either submitter of
> one
>> > > > > > of the bugs, maintainer of an affectected subsystem or driver, a
> patch
>> > > > > > of you caused a breakage or I'm considering you in any other way
>> > > > > > possibly involved with one or more of these issues.
>> > > > > > 
>> > > > > > Due to the huge amount of recipients, please trim the Cc when
> answering.
>> > > > > > 
>> > > > > > 
>> > > > > > Subject    : gammu no longer works
>> > > > > > References : http://lkml.org/lkml/2007/4/20/84
>> > > > > > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
>> > > > > > Status     : unknown
>> > > > > 
>> > > > > I've asked for more information about this, and so far am not sure
> it's
>> > > > > a real problem.
>> > > > 
>> > > > It is a real problem for me.
>> > > > I tried this on 2 different boxes with the same behaviour.
>> > > > No sync between my Nokia mobile and Linux with the latest kernel :(
>> > > 
>> > > Sorry, I didn't see your response, have followed up on lkml now.
>> > 
>> > It turned out this was actually a bug in Gammu that will be fixed in 
>> > the next release of Gammu.
>> 
>> Ah, ok, thanks for letting me know.
>> 
>> But how was the kernel version change triggering it?
>
> I don't know, perhaps a side effect of Eric's work in kernel/signal.c?

Perhaps there has been a bit of churn.  Most of what I have done has
been fixing corner cases like not sending a signal to the wrong task,
after our original target has exited.

Although in conjunction with Oleg and some others there has been things
like changing locking to rcu or making locks more local so the timing
may have changed.  Which is make some subtle timing thing my best
guess.  For timing changes just about anything could have triggered
something.

I took a quick glance at the code and I certainly touched some of
the helpers like send_sigio that seem to be called by fasync
processing but I haven't a clue what FASYNC really does.  So I'm
having trouble putting this all into perspective.

I guess it's possible I fixed something without realizing it.


Eric

Re: [1/3] 2.6.21-rc7: known regressions (v2)

[Wolfgang Erig]

On Wed, Apr 25, 2007 at 03:21:53AM +0200, Adrian Bunk wrote:
> On Tue, Apr 24, 2007 at 05:51:11PM -0700, Greg KH wrote:
> > On Wed, Apr 25, 2007 at 02:29:58AM +0200, Adrian Bunk wrote:
> > > On Tue, Apr 24, 2007 at 05:14:28PM -0700, Greg KH wrote:
> > > > On Tue, Apr 24, 2007 at 11:32:53AM +0200, Wolfgang Erig wrote:
> > > > > On Mon, Apr 23, 2007 at 03:18:19PM -0700, Greg KH wrote:
> > > > > > On Mon, Apr 23, 2007 at 11:48:47PM +0200, Adrian Bunk wrote:
> > > > > > > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > > > > > > 
> > > > > > > If you find your name in the Cc header, you are either submitter of one
> > > > > > > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > > > > > > of you caused a breakage or I'm considering you in any other way
> > > > > > > possibly involved with one or more of these issues.
> > > > > > > 
> > > > > > > Due to the huge amount of recipients, please trim the Cc when answering.
> > > > > > > 
> > > > > > > 
> > > > > > > Subject    : gammu no longer works
> > > > > > > References : http://lkml.org/lkml/2007/4/20/84
> > > > > > > Submitter  : Wolfgang Erig <Wolfgang.Erig@gmx.de>
> > > > > > > Status     : unknown
> > > > > > 
> > > > > > I've asked for more information about this, and so far am not sure it's
> > > > > > a real problem.
> > > > > 
> > > > > It is a real problem for me.
> > > > > I tried this on 2 different boxes with the same behaviour.
> > > > > No sync between my Nokia mobile and Linux with the latest kernel :(
> > > > 
> > > > Sorry, I didn't see your response, have followed up on lkml now.
> > > 
> > > It turned out this was actually a bug in Gammu that will be fixed in 
> > > the next release of Gammu.
> > 
> > Ah, ok, thanks for letting me know.
> > 
> > But how was the kernel version change triggering it?
> 
> I don't know, perhaps a side effect of Eric's work in kernel/signal.c?
> 
> The bug in Gammu was:
> - Gammu wrongly set FASYNC in a fcntl() call.
> - The unhandled SIGIO terminated Gammu in 2.6.21-rc.

I tried it: get the source of gammu, remove FASYNC, ... etc.
It works.

Thankyou for the fun,
Wolfgang