Bug#484593: linux-image-2.6.25-2-686: su gets stuck for root -- stty getting stuck in T state
Package: linux-image-2.6.25-2-686
Version: 2.6.25-4
Severity: normal
There's an upstream bug that has started affecting me. stty gets
backgrounded, and you can only kill -9 it to get your shell back. A
thread titled "su gets stuck for root" is on LKML with all the
details, and when there's an eventual patch, it would be good to
include it in the debian patchset.
-- Package-specific info:
** Version:
Linux version 2.6.25-2-686 (Debian 2.6.25-4) (maks@debian.org) (gcc version 4.1.3 20080420 (prerelease) (Debian 4.1.2-22)) #1 SMP Tue May 27 15:38:35 UTC 2008
** Kernel log:
[ 798.258922] EXT3-fs: mounted filesystem with journal data mode.
[ 798.262669] kjournald starting. Commit interval 5 seconds
[ 798.263137] EXT3 FS on dm-11, internal journal
[ 798.263137] EXT3-fs: mounted filesystem with journal data mode.
[ 800.290714] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[ 800.292024] martian source 192.168.1.3 from 192.168.1.254, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:04:ed:78:c8:50:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.254, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:04:ed:78:c8:50:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.254, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:04:ed:78:c8:50:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.254, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:04:ed:78:c8:50:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.254, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:04:ed:78:c8:50:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.254, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:04:ed:78:c8:50:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:13:e8:9b:36:d7:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:13:e8:9b:36:d7:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:13:e8:9b:36:d7:08:06
[ 800.292024] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[ 800.292024] ll header: ff:ff:ff:ff:ff:ff:00:13:e8:9b:36:d7:08:06
[ 800.398584] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[ 803.688006] NET: Registered protocol family 10
[ 803.689850] lo: Disabled Privacy Extensions
[ 804.550877] RPC: Registered udp transport module.
[ 804.550888] RPC: Registered tcp transport module.
[ 806.573597] nf_conntrack version 0.5.0 (4096 buckets, 16384 max)
[ 806.744359] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 809.082179] ACPI: WMI: Mapper loaded
[ 810.454758] eth0: no IPv6 routers present
[ 811.969727] ondemand governor failed, too long transition latency of HW, fallback to performance governor
[ 812.105224] lp0: using parport0 (interrupt-driven).
[ 812.151297] ppdev: user-space parallel port driver
[ 817.783840] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 817.889025] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[ 817.903852] NFSD: starting 90-second grace period
[ 818.843517] warning: `ntpd' uses 32-bit capabilities (legacy support in use)
[ 821.734771] ondemand governor failed, too long transition latency of HW, fallback to performance governor
[ 1184.070018] [drm] Initialized drm 1.1.0 20060810
[ 1184.270097] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11
[ 1184.270121] ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
[ 1184.270625] [drm] Initialized r128 2.5.0 20030725 on minor 0
[ 1184.276458] agpgart: Found an AGP 1.0 compliant device at 0000:00:00.0.
[ 1184.276502] agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
[ 1184.276543] agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode
[ 1249.002445] printk: 134 messages suppressed.
[ 1249.002469] wmrack[18254]: segfault at 38 ip 0804cb19 sp bfb4e270 error 4 in wmrack[8048000+d000]
[ 5232.861464] cpufreq: change to state 0 failed with new_state 1 and result 3
[ 5773.976356] cpufreq: change to state 1 failed with new_state 0 and result 3
[15618.010297] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[20964.434524] cpufreq: change to state 0 failed with new_state 1 and result 3
[33923.675994] cpufreq: change to state 1 failed with new_state 0 and result 3
[36838.170083] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[36846.014283] eth0: no IPv6 routers present
[36893.782162] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[36900.681743] eth0: no IPv6 routers present
[37531.447682] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448293] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448293] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448570] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448580] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37531.448638] martian source 192.168.1.3 from 192.168.1.17, on dev eth0
[37531.448648] ll header: 00:50:b6:01:99:4c:00:13:e8:9b:36:d7:08:00
[37538.597392] eth0: no IPv6 routers present
[48446.208607] device-mapper: snapshots: Invalidating snapshot: Unable to allocate exception.
[49628.981590] kjournald starting. Commit interval 5 seconds
[49629.002159] EXT3 FS on dm-5, internal journal
[49629.002186] EXT3-fs: mounted filesystem with journal data mode.
[49639.325327] kjournald starting. Commit interval 5 seconds
[49639.325481] EXT3 FS on dm-9, internal journal
[49639.325481] EXT3-fs: mounted filesystem with journal data mode.
[51107.776312] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[53070.947371] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[68135.916865] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[77407.973912] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[77497.828829] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[86359.939597] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[86401.950206] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[86487.889243] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[86528.729232] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[86532.188782] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
[88470.116127] usb 4-4.2: reset low speed USB device using ehci_hcd and address 4
Kernel: Linux 2.6.25-2-686 (SMP w/1 CPU core)
Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash
Versions of packages linux-image-2.6.25-2-686 depends on:
ii debconf [debconf-2.0] 1.5.22 Debian configuration management sy
ii initramfs-tools [linux-initra 0.92b tools for generating an initramfs
ii module-init-tools 3.4-1 tools for managing Linux kernel mo
Versions of packages linux-image-2.6.25-2-686 recommends:
ii libc6-i686 2.7-11 GNU C Library: Shared libraries [i
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01-04-2009, 04:03 PM
Moritz Muehlenhoff
Bug#484593: linux-image-2.6.25-2-686: su gets stuck for root -- stty getting stuck in T state
On Thu, Jun 05, 2008 at 02:03:29PM +1000, Tim Connors wrote:
> Package: linux-image-2.6.25-2-686
> Version: 2.6.25-4
> Severity: normal
>
> There's an upstream bug that has started affecting me. stty gets
> backgrounded, and you can only kill -9 it to get your shell back. A
> thread titled "su gets stuck for root" is on LKML with all the
> details, and when there's an eventual patch, it would be good to
> include it in the debian patchset.
Does this error still occur with the Lenny kernel?
Cheers,
Moritz
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01-04-2009, 08:10 PM
Tim Connors
Bug#484593: linux-image-2.6.25-2-686: su gets stuck for root -- stty getting stuck in T state
On Sun, 4 Jan 2009, Moritz Muehlenhoff wrote:
> On Thu, Jun 05, 2008 at 02:03:29PM +1000, Tim Connors wrote:
> > Package: linux-image-2.6.25-2-686
> > Version: 2.6.25-4
> > Severity: normal
> >
> > There's an upstream bug that has started affecting me. stty gets
> > backgrounded, and you can only kill -9 it to get your shell back. A
> > thread titled "su gets stuck for root" is on LKML with all the
> > details, and when there's an eventual patch, it would be good to
> > include it in the debian patchset.
>
> Does this error still occur with the Lenny kernel?
It did last time I used that machine, but it's since been decomissioned.
Since this is a race condition that obviously depends strongly on timing
(it was quite a slow machine), I'm not going to say the bug is gone.
There was no more activity on that "su gets stuck for root" thread on
LKML, so I doubt it's been deliberately fixed.
--
TimC
Seen in a sendmail HELO greeting (Leon Brooks):
Commodore 64 (anti-spam cartridge loaded)
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