Re: 2.6.25-rc5-mm1

Torsten Kaiser
2008-03-12T20:01:51Z

On Wed, Mar 12, 2008 at 8:44 PM, Andrew Morton
<akpm@linux-foundation.org> wrote:
> On Wed, 12 Mar 2008 20:33:02 +0100
> "Torsten Kaiser" <just.for.lkml@googlemail.com> wrote:
> > dmesg:
> > [ 0.000000] Linux version 2.6.25-rc5-mm1 (root@treogen) (gcc
> > version 4.2.3 (Gentoo 4.2.3 p1.0)) #1 SMP Wed Mar 12 19:51:41 CET 2008
> > [ 0.000000] Command line: earlyprintk=serial,ttyS0,115200
> > console=ttyS0,115200 console=tty1 crypt_root=/dev/md1 sata_nv.swncq=1
>
> So you aren't using netconsole. I had a series of hangs yesterday which
> went away when netconsole was disabled. I think netconsole is still
> busted.

No, just a plain serial console.

> > be reserved
> > [ 1.943656] system 00:0d: iomem range 0xfec00000-0xffffffff could
> > not be reserved
> > [ 1.961251] PCI: Bridge: 0000:00:06.0
> > [ 1.964921] IO window: disabled.
> > [ 1.968331] MEM window: 0xeff00000-0xefffffff
> > [ 1.980903] PREFETCH window: 0x00000000eef00000-0x00000000eeffffff
> > [ 1.987254] PCI: Bridge: 0000:00:0b.0
> > [ 2.000871] IO window: e000-efff
> > [ 2.004283] MEM window: 0xefe00000-0xefefffff
> > [ 2.022569] PREFETCH window: disabled.
> > [ 2.026646] PCI: Bridge: 0000:00:0c.0
> > [ 2.030312] IO window: disabled.
> > [ 2.040486] MEM window: 0xefd00000-0xefdfffff
> > [ 2.045020] PREFETCH window: disabled.
> > [ 2.050486] PCI: Bridge: 0000:00:0d.0
> > [ 2.062526] IO window: disabled.
> > [ 2.065935] MEM window: 0xefc00000-0xefcfffff
> > [ 2.082499] PREFETCH window: disabled.
> > [ 2.086432] PCI: Bridge: 0000:00:0f.0
> > [ 2.092499] IO window: d000-dfff
> > [ 2.102467] MEM window: 0xefb00000-0xefbfffff
> > [ 2.107000] PREFETCH window: 0x00000000e0000000-0x00000000e7ffffff
> > [ 2.122526] NET: Registered protocol family 2
> > -> System hang, no reaction to the SysRq keys.
[snip]
> OK, so it looks like it died during networking initialisation.
>
> Could you please add initcall_debug to the boot command line so we can see
> which function it is getting stuck in?

Yes, here is the result:
[ 2.573979] PCI-DMA: Disabling AGP.
[ 2.577639] PCI-DMA: aperture base @ 8000000 size 65536 KB
[ 2.589504] PCI-DMA: using GART IOMMU.
[ 2.593258] PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture
[ 2.600132] initcall pci_iommu_init+0x0/0x20() returned 0 after 19 msecs
[ 2.622146] calling hpet_late_init+0x0/0x140()
[ 2.626689] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 31
[ 2.633022] hpet0: 3 32-bit timers, 25000000 Hz
[ 2.638562] initcall hpet_late_init+0x0/0x140() returned 0 after 9 msecs
[ 2.654545] calling clocksource_done_booting+0x0/0x20()
[ 2.659855] initcall clocksource_done_booting+0x0/0x20()<6>Time:
hpet clocksource has been installed.
[ 2.662185] returned 0 after 0 msecs
[ 2.688448] calling init_pipe_fs+0x0/0x60()
[ 2.695423] initcall init_pipe_fs+0x0/0x60() returned 0 after 0 msecs
[ 2.705784] calling init_mnt_writers+0x0/0x70()
[ 2.711681] initcall init_mnt_writers+0x0/0x70() returned 0 after 0 msecs
[ 2.721678] calling eventpoll_init+0x0/0x90()
[ 2.731644] initcall eventpoll_init+0x0/0x90() returned 0 after 0 msecs
[ 2.738295] calling anon_inode_init+0x0/0x130()
[ 2.751614] initcall anon_inode_init+0x0/0x130() returned 0 after 0 msecs
[ 2.771585] calling pcie_aspm_init+0x0/0x30()
[ 2.779297] initcall pcie_aspm_init+0x0/0x30() returned 0 after 2 msecs
[ 2.793911] calling acpi_event_init+0x0/0x52()

-> it looked like the system this time already hung here. But just
pressing the 'Alt' key let the system continue until the network hang.
(I tried this a second time, again it paused here until I pressed a key)

[ 94.857929] initcall acpi_event_init+0x0/0x52() returned 0 after 29276 msecs
[ 94.865002] calling pnp_system_init+0x0/0x20()
[ 94.877935] system 00:06: ioport range 0x4d0-0x4d1 has been reserved
[ 94.884286] system 00:06: ioport range 0x7b0-0x7df has been reserved
[ 94.897886] system 00:06: ioport range 0x800-0x80f has been reserved
[ 94.907886] system 00:06: ioport range 0xbb0-0xbdf has been reserved
[ 94.917855] system 00:06: ioport range 0x2000-0x207f has been reserved
[ 94.937827] system 00:06: ioport range 0x2080-0x20ff has been reserved
[ 94.947827] system 00:06: ioport range 0x2400-0x247f has been reserved
[ 94.957793] system 00:06: ioport range 0x2480-0x24ff has been reserved
[ 94.977766] system 00:06: ioport range 0x2800-0x287f has been reserved
[ 94.987766] system 00:06: ioport range 0x2880-0x28ff has been reserved
[ 94.997734] system 00:06: ioport range 0x2c00-0x2c7f has been reserved
[ 95.017708] system 00:06: ioport range 0x2c80-0x2cff has been reserved
[ 95.024234] system 00:06: iomem range 0x0-0x0 could not be reserved
[ 95.037678] system 00:06: iomem range 0xfee01000-0xfeefffff could
not be reserved
[ 95.060158] system 00:06: iomem range 0xefa80000-0xefabffff has been reserved
[ 95.070158] system 00:06: iomem range 0xffb00000-0xffbfffff could
not be reserved
[ 95.077633] system 00:06: iomem range 0xfff00000-0xffffffff could
not be reserved
[ 95.097590] system 00:08: iomem range 0xfec00000-0xfec00fff could
not be reserved
[ 95.120064] system 00:08: iomem range 0xfee00000-0xfee00fff could
not be reserved
[ 95.130070] system 00:0c: ioport range 0x290-0x297 has been reserved
[ 95.137523] system 00:0d: iomem range 0x0-0x9ffff could not be reserved
[ 95.157495] system 00:0d: iomem range 0xc0000-0xcffff has been reserved
[ 95.167495] system 00:0d: iomem range 0xe0000-0xfffff could not be reserved
[ 95.177463] system 00:0d: iomem range 0x100000-0xdfffffff could not
be reserved
[ 95.197437] system 00:0d: iomem range 0xfec00000-0xffffffff could
not be reserved
[ 95.219983] initcall pnp_system_init+0x0/0x20() returned 0 after 162 msecs
[ 95.226887] calling chr_dev_init+0x0/0xd0()
[ 95.237813] initcall chr_dev_init+0x0/0xd0() returned 0 after 0 msecs
[ 95.247378] calling firmware_class_init+0x0/0x90()
[ 95.257320] initcall firmware_class_init+0x0/0x90() returned 0 after 0 msecs
[ 95.276031] calling loopback_init+0x0/0x20()
[ 95.288590] initcall loopback_init+0x0/0x20() returned 0 after 0 msecs
[ 95.296837] calling cpufreq_gov_performance_init+0x0/0x20()
[ 95.309084] initcall cpufreq_gov_performance_init+0x0/0x20()
returned 0 after 0 msecs
[ 95.317734] calling cpufreq_gov_dbs_init+0x0/0x50()
[ 95.338090] initcall cpufreq_gov_dbs_init+0x0/0x50() returned 0 after 0 msecs
[ 95.345254] calling init_acpi_pm_clocksource+0x0/0xc0()
[ 95.355293] initcall init_acpi_pm_clocksource+0x0/0xc0() returned 0
after 0 msecs
[ 95.374115] calling pcibios_assign_resources+0x0/0x90()
[ 95.379618] PCI: Bridge: 0000:00:06.0
[ 95.394087] IO window: disabled.
[ 95.397502] MEM window: 0xeff00000-0xefffffff
[ 95.402032] PREFETCH window: 0x00000000eef00000-0x00000000eeffffff
[ 95.415189] PCI: Bridge: 0000:00:0b.0
[ 95.418860] IO window: e000-efff
[ 95.438075] MEM window: 0xefe00000-0xefefffff
[ 95.442610] PREFETCH window: disabled.
[ 95.455526] PCI: Bridge: 0000:00:0c.0
[ 95.459197] IO window: disabled.
[ 95.462604] MEM window: 0xefd00000-0xefdfffff
[ 95.475513] PREFETCH window: disabled.
[ 95.479443] PCI: Bridge: 0000:00:0d.0
[ 95.485512] IO window: disabled.
[ 95.495480] MEM window: 0xefc00000-0xefcfffff
[ 95.500010] PREFETCH window: disabled.
[ 95.515455] PCI: Bridge: 0000:00:0f.0
[ 95.519124] IO window: d000-dfff
[ 95.522533] MEM window: 0xefb00000-0xefbfffff
[ 95.535423] PREFETCH window: 0x00000000e0000000-0x00000000e7ffffff
[ 95.545456] initcall pcibios_assign_resources+0x0/0x90() returned 0
after 79 msecs
[ 95.557830] calling fill_mp_bus_to_cpumask+0x0/0x100()
[ 95.575408] initcall fill_mp_bus_to_cpumask+0x0/0x100() returned 0
after 0 msecs
[ 95.593777] calling inet_init+0x0/0x380()
[ 95.597890] NET: Registered protocol family 2

-> same hang, no reaction to SysRq.

What looks suspicious: The call to pcie_aspm_init is just before the
temporary hang. When I used make oldconfig to upgrade the .config from
2.6.25-rc3-mm1 to -rc5-mm1 I activated the new option CONFIG_PCIEASPM.

I will try with CONFIG_PCIEASPM_DEBUG added and completely without this option.

Torsten