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## kernel failure

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5 posts • Page 1 of 1

### kernel failure

by golinux » Sat Dec 13, 2014 6:17 am

I updated my kernel a few days ago. Everything was running smoothly. Then this just popped up after coming out of suspend:

> Kernel failure message 1:
> ------------[ cut here ]------------
> WARNING: at /build/linux-2.6-bBJNRm/linux-2.6-2.6.32/debian/build/source_i386_none/kernel/rcutree.c:277 rcu_exit_nohz+0x43/0x5d()
> Hardware name: P35-DS3L
> Modules linked in:
> ata_piix 0000:00:1f.5: PCI INT B -> GSI 19 (level, low) -> IRQ 19
> xt_limit xt_tcpudp ipt_LOG
> ata_piix 0000:00:1f.5: setting latency timer to 64
> ipt_MASQUERADE xt_DSCP ipt_REJECT nf_conntrack_irc nf_conntrack_ftp xt_state sco bridge stp bnep rfcomm acpi_cpufreq l2cap bluetooth cpufreq_powersave rfkill cpufreq_conservative cpufreq_stats cpufreq_userspace ppdev lp binfmt_misc fuse iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables x_tables ext4 jbd2 crc16 it87 hwmon_vid coretemp loop snd_hda_codec_realtek snd_hda_intel i2c_i801 nvidia(P) snd_hda_codec snd_hwdep parport_pc i2c_core processor snd_pcm snd_seq snd_timer snd_seq_device evdev parport snd soundcore snd_page_alloc pcspkr psmouse serio_raw ext3 jbd mbcache sg sr_mod cdrom sd_mod crc_t10dif ata_generic uhci_hcd r8169 mii pata_jmicron thermal ata_piix thermal_sys ehci_hcd libata button scsi_mod usbcore nls_base [last unloaded: scsi_wait_scan]
> Pid: 0, comm: swapper Tainted: P W 2.6.32-5-686 #1
> Call Trace:
> [<c10308fd>] ? warn_slowpath_common+0x5e/0x8a
> [<c1030933>] ? warn_slowpath_null+0xa/0xc
> [<c106f5b7>] ? rcu_exit_nohz+0x43/0x5d
> [<c104f6a5>] ? tick_nohz_restart_sched_tick+0x6d/0x12d
> [<c1002338>] ? cpu_idle+0x9b/0xa3
> ---[ end trace 150783a4a64aa323 ]---

Things seem to still be working OK. Should I be in panic or just ignore it and go on about my business. First time in all my Linux years that this has happened.
May the FORK be with you!

golinux
  Posts: 643
  Joined: Thu Nov 08, 2012 1:23 am

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### Re: kernel failure

by fsmithred » Sat Dec 13, 2014 12:43 pm

If it's reproducible, you could try downgrading to the previous kernel and see if that fixes it.
ls -l /var/cache/apt/archives/linux-image-*.deb
will show you the old package(s) with the dates.
dpkg -i --force-downgrade <old-package>
To install the older version

fsmithred
  Posts: 1987
  Joined: Wed Mar 09, 2011 9:13 pm

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### Re: kernel failure

by golinux » Sat Dec 13, 2014 4:49 pm

Thanks for the advice. No error message when I unsuspended this morning possibly because I sent it off to the kernel team?
Only the current kernel is in /apt/archives. So to downgrade I guess I'd have to force the version if the error crops up again or things go sideways.
May the FORK be with you!

golinux
  Posts: 643
  Joined: Thu Nov 08, 2012 1:23 am

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### Re: kernel failure

by fsmithred » Sat Dec 13, 2014 8:05 pm

To force a downgrade, you need to have the deb file. Latest one I have for squeeze is from May of '13. You can probably find the one you want at snapshot.debian.org (or is it snapshots...?) Or at least it's there - finding it might be a challenge.

fsmithred
  Posts: 1987
  Joined: Wed Mar 09, 2011 9:13 pm

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### Re: kernel failure

by golinux » Sat Dec 13, 2014 8:14 pm

OK. So far still working and no hiccups. You see the conversation on #devuan between dzz and max2344 this am?
May the FORK be with you!

golinux
  Posts: 643
  Joined: Thu Nov 08, 2012 1:23 am

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