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Message-ID: <49b7c2351002231708r279049f9hcc9cc6ff205a47fb@mail.gmail.com>
Date: Wed, 24 Feb 2010 10:08:04 +0900
From: GeunSik Lim <leemgs1@...il.com>
To: John Kacur <jkacur@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>,
rt-users <linux-rt-users@...r.kernel.org>,
Ingo Molnar <mingo@...e.hu>,
Steven Rostedt <rostedt@...dmis.org>,
Peter Zijlstra <peterz@...radead.org>,
Carsten Emde <ce@...g.ch>,
Clark Williams <williams@...hat.com>,
Frank Rowand <frank.rowand@...sony.com>,
Robin Gareus <robin@...eus.org>,
Gregory Haskins <ghaskins@...ell.com>,
Philippe Reynes <philippe.reynes@...smpp.fr>,
Fernando Lopez-Lezcano <nando@...ma.stanford.edu>,
Will Schmidt <will_schmidt@...t.ibm.com>,
Darren Hart <dvhltc@...ibm.com>, Jan Blunck <jblunck@...e.de>,
Sven-Thorsten Dietrich <sdietrich@...ell.com>,
Jon Masters <jcm@...hat.com>,
Mark Knecht <markknecht@...il.com>,
Nick Piggin <nickpiggin@...oo.com.au>
Subject: Re: [ANNOUNCE] 2.6.33-rc8-rt1
Dear Thomas,
This is a report about booting test with linux-2.6.33.rc8-rt1 by Thomas.
I also can't boot linux-2.6.33.rc8-rt1 version on my desktop pc like
John Kacur. But, This Error message is different in my case.
So, I returned linux version from this version to linux-2.6.31-rt14 version now.
- version info : Linux-2.6.33.rc8-rt1
- H/W Spec : intel Core2Quad Q9400 , SATA HDD320G
I uploaded screenshot about booting error on my Q9400 based desktop pc.
http://picasaweb.google.com/leemgs/LinuxRelatedScreenshot#5441436536331947314
And, I attached my config file to compile linux-2.6.33.rc8-rt1.
Regards,
Geunsik Lim.
On Mon, Feb 22, 2010 at 8:11 PM, John Kacur <jkacur@...hat.com> wrote:
>
> On Mon, Feb 22, 2010 at 12:24 AM, Thomas Gleixner <tglx@...utronix.de> wrote:
> > We are pleased to announce the next update to our new preempt-rt
> > series.
> >
> > - Forward to 2.6.33-rc8
> >
> > Finally I managed to get that beast tamed.
> >
> > Some folks were already joking, that my dog ate the 33-rt patch. The
> > truth is that my reject fixup skills were one line off in the mm/*
> > code which resulted in -rt eating my files :)
> >
> > When I fixed the wreckage of my own stupidty I found out that -rt
> > triggered a nasty and hard to reproduce mainline scheduler bug, which
> > refused to reproduce with kernel tracing enabled. Thanks to Peter
> > Zijlstra for helping me to decode the initial mainline problem and the
> > ones which resulted from fixing the mainline bug!
> >
> > It's all fixed now and I'm pretty happy about the state of this
> > release with the following exceptions:
> >
> > 1) it is only runtime tested on x86_64 (compiles on x86_32, arm,
> > powerpc_32/64).
> >
> > I'm going to throw it at my testing infrastructure tomorrow, but I
> > wanted to release this before .33-final and of course you folks
> > are heartely invited to help out with fixing the fallout :)
> >
> > 2) I broke the histogram tracer stuff simply because I got lost in
> > the divergence of -rt and mainline kernel/trace/* changes
> >
> > I apologize to Carsten, but I'm sure he will fix that in no time
> > as usual
> >
> > The current state of the patch on x86_64 is: rock stable!
> >
> > [rt-tests]# chrt -f 1 ./cyclictest -t -a -n -d0 -p80 -i125
> > policy: fifo: loadavg: 509.19 490.53 486.66 364/1055 31899
> >
> > T: 0 (27682) P:80 I:125 C:1170997397 Min: 2 Act: 3 Avg: 3 Max: 34
> > T: 1 (27683) P:79 I:125 C:1170997397 Min: 2 Act: 3 Avg: 3 Max: 34
> >
> > That's an uptime of ~1.6 days with a load of hackbench, recursive
> > grep and extensive networking traffic going on.
> >
> > The merge of the spinlock namespace cleanup and the initial
> > annotations took a big chunk away from the -rt patch size:
> >
> > patch-2.6.31.12-rt21.patch 1680354
> > patch-2.6.33-rc8.patch 1179390
> > patch-2.6.33-rc8+git.patch 1067064
> >
> > We are zooming in, but there is still a way to go!
> >
>
> Woohoo! More -rt fun.
>
> Unfortunately, I can't log in on my T500 with this kernel though.
> The following shows-up on my serial console.
> ------------[ cut here ]------------
> WARNING: at /home/jkacur/rt.linux.git/net/mac80211/rx.c:2467 ieee80211_rx+0x4c/0
> x721 [mac80211]()
> Hardware name: 2241B48
> Modules linked in: bridge stp bnep sco btusb l2cap crc16 bluetooth sunrpc ipt_RE
> JECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT xt_tc
> pudp nf_conntrack_ipv6 xt_state ip6table_filter ip6_tables x_tables ipv6 cpufreq
> _ondemand acpi_cpufreq ext3 jbd mbcache dm_mirror dm_region_hash dm_log dm_multi
> path scsi_dh dm_mod kvm_intel kvm uinput arc4 ecb snd_hda_codec_conexant iwlagn
> snd_hda_intel iwlcore snd_hda_codec snd_hwdep snd_seq_dummy mac80211 snd_seq_oss
> snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss thinkpad_ac
> pi snd_pcm firewire_ohci firewire_core hwmon video ppdev tpm_tis cfg80211 sr_mod
> battery wmi ricoh_mmc parport_pc sg tpm cdrom tpm_bios button ac ata_generic e1
> 000e iTCO_wdt snd_timer sdhci_pci pata_acpi sdhci i2c_i801 i2c_core parport mmc_
> core iTCO_vendor_support snd joydev snd_page_alloc pcspkr intel_agp soundcore cr
> c_itu_t rfkill output ahci libata sd_mod scsi_mod crc_t10dif xfs exportfs uhci_h
> cd ohci_hcd ehci_hcd [last unloaded: microcode]
> Pid: 10, comm: sirq-tasklet/0 Not tainted 2.6.33-rc8-rt1-debug #1
> Call Trace:
> [<ffffffffa033524f>] ? ieee80211_rx+0x4c/0x721 [mac80211]
> [<ffffffff81041f25>] warn_slowpath_common+0x77/0xa4
> [<ffffffff81041f61>] warn_slowpath_null+0xf/0x11
> [<ffffffffa033524f>] ieee80211_rx+0x4c/0x721 [mac80211]
> [<ffffffffa039f380>] ? iwl_led_pattern+0x17a/0x189 [iwlcore]
> [<ffffffff810c0fd1>] ? free_compound_page+0x16/0x18
> [<ffffffffa039f3f5>] ? iwl_leds_background+0x66/0x219 [iwlcore]
> [<ffffffffa0393524>] iwl_rx_reply_rx+0xc29/0xc5a [iwlcore]
> [<ffffffff8106ee74>] ? trace_hardirqs_on+0xd/0xf
> [<ffffffff8135cf7e>] ? _raw_spin_unlock_irqrestore+0x4c/0x68
> [<ffffffff811b4e32>] ? unmap_single+0x27/0x4f
> [<ffffffffa03cec81>] iwl_rx_handle+0x2a0/0x48d [iwlagn]
> [<ffffffff8135cf7e>] ? _raw_spin_unlock_irqrestore+0x4c/0x68
> [<ffffffffa03cfbb3>] iwl_irq_tasklet+0x5a3/0x73f [iwlagn]
> [<ffffffff81047b5a>] __tasklet_action+0x8f/0xfd
> [<ffffffff81047cc9>] tasklet_action+0x7c/0x85
> [<ffffffff81048209>] run_ksoftirqd+0x18e/0x2d5
> [<ffffffff8104807b>] ? run_ksoftirqd+0x0/0x2d5
> [<ffffffff8105d794>] kthread+0x8c/0x94
> [<ffffffff8135cfca>] ? _raw_spin_unlock+0x30/0x4b
> [<ffffffff81003a54>] kernel_thread_helper+0x4/0x10
> [<ffffffff8135d340>] ? restore_args+0x0/0x30
> [<ffffffff8105d708>] ? kthread+0x0/0x94
> [<ffffffff81003a50>] ? kernel_thread_helper+0x0/0x10
> ---[ end trace 01358557eee38037 ]---
>
> Thanks
> --
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--
Regards,
GeunSik Lim ( Samsung Electronics )
Blog : http://blog.naver.com/invain/
e-Mail: geunsik.lim@...sung.com
leemgs@...il.com , leemgs1@...il.com
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