* RE: SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2]
@ 2006-01-22 21:47 Brown, Len
2006-01-22 22:48 ` Randy.Dunlap
0 siblings, 1 reply; 5+ messages in thread
From: Brown, Len @ 2006-01-22 21:47 UTC (permalink / raw)
To: Randy.Dunlap, J.A. Magallon; +Cc: akpm, linux-kernel
I think nosmp has been broken for a long time:
http://bugzilla.kernel.org/show_bug.cgi?id=1641
try maxcpus=1 instead of nosmp.
-Len
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2]
2006-01-22 21:47 SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2] Brown, Len
@ 2006-01-22 22:48 ` Randy.Dunlap
0 siblings, 0 replies; 5+ messages in thread
From: Randy.Dunlap @ 2006-01-22 22:48 UTC (permalink / raw)
To: Brown, Len; +Cc: jamagallon, akpm, linux-kernel
On Sun, 22 Jan 2006 16:47:24 -0500 Brown, Len wrote:
> I think nosmp has been broken for a long time:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=1641
>
> try maxcpus=1 instead of nosmp.
Yes, I know that it's not recent.
Thanks for the bugz #. I had already searched for that
but didn't find it.
---
~Randy
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2]
2006-01-21 23:46 ` J.A. Magallon
@ 2006-01-22 0:22 ` Randy.Dunlap
0 siblings, 0 replies; 5+ messages in thread
From: Randy.Dunlap @ 2006-01-22 0:22 UTC (permalink / raw)
To: J.A. Magallon; +Cc: akpm, linux-kernel
On Sun, 22 Jan 2006 00:46:36 +0100 J.A. Magallon wrote:
> On Fri, 20 Jan 2006 19:22:59 -0800, Andrew Morton <akpm@osdl.org> wrote:
>
> > "J.A. Magallon" <jamagallon@able.es> wrote:
> > >
> > > On Sun, 11 Dec 2005 04:13:08 -0800, Andrew Morton <akpm@osdl.org> wrote:
> > >
> > > >
> > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.15-rc5/2.6.15-rc5-mm2/
> > > >
> > >
> > > Booting a SMP built kernel with 'nosmp' just hangs at the VFS layer, with
> > > the message about 'not being able to find root device sda1'.
> > > sda is a SATA drive on an Intel ICH5 controller:
> > >
> > > libata version 1.20 loaded.
> > > ata_piix 0000:00:1f.2: version 1.05
> > > ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, low) -> IRQ 16
> > > PCI: Setting latency timer of device 0000:00:1f.2 to 64
> > > ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 16
> > > ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 16
> > > ata1: dev 0 cfg 49:2f00 82:346b 83:7d01 84:4003 85:3469 86:3c01 87:4003 88:407f
> > > ata1: dev 0 ATA-6, max UDMA/133, 390721968 sectors: LBA48
> > > ata1: dev 0 configured for UDMA/133
> > > scsi0 : ata_piix
> > > ATA: abnormal status 0x7F on port 0xC807
> > > scsi1 : ata_piix
> > > Vendor: ATA Model: ST3200822AS Rev: 3.01
> > > Type: Direct-Access ANSI SCSI revision: 05
> > > SCSI device sda: 390721968 512-byte hdwr sectors (200050 MB)
> > > SCSI device sda: drive cache: write back
> > > SCSI device sda: 390721968 512-byte hdwr sectors (200050 MB)
> > > SCSI device sda: drive cache: write back
> > > sda: sda1 sda2 sda3
> > > sd 0:0:0:0: Attached scsi disk sda
> > >
> > > I would have to double check, but I think it even missed the USB keyboard.
> > >
> >
> > Is this still happening?
>
> Yes. I have just tried with 2.6.16-rc1-mm2, and the result is the same.
> No root device.
>
> The nosmp-booted kernel looks much much slow than the SMP one, it takes
> ages to detect devices like usb ones, and even spent about 20 seconds here:
>
> [ 0.431601] libata version 1.20 loaded.
> [ 0.431652] ata_piix 0000:00:1f.2: version 1.05
> [ 0.431670] ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, low) -> IRQ 16
> [ 0.431792] PCI: Setting latency timer of device 0000:00:1f.2 to 64
> [ 0.431852] ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 16
> [ 0.431950] ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 16
> >>>>>>>>>>>>> here <<<<<<<<<<<<<<<<<<
> [ 0.690451] ata1: dev 0 cfg 49:2f00 82:346b 83:7d01 84:4003 85:3469 86:3c01 87:4003 88:407f
> [ 0.690456] ata1: dev 0 ATA-6, max UDMA/133, 390721968 sectors: LBA48
> [ 0.696278] ata1: dev 0 configured for UDMA/133
> [ 0.701627] scsi0 : ata_piix
> [ 1.937443] scsi1 : ata_piix
>
> and it did not detect any drive, so the no-root-device error. This one can be
> a detection timeout, but as I say also the USB detection is dog slooow.
>
> Need some info ? .config, or the like ?
Hi,
I've been testing this also. I also see the problem.
I don't yet know what to do about it, but it's easy to
reproduce. I'll continue to look at it.
For a temporary workaround, booting with "irqpoll" might help,
but that's not the real solution IMO.
---
~Randy
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2]
[not found] ` <20060120192259.4460af42.akpm@osdl.org>
@ 2006-01-21 23:46 ` J.A. Magallon
2006-01-22 0:22 ` Randy.Dunlap
0 siblings, 1 reply; 5+ messages in thread
From: J.A. Magallon @ 2006-01-21 23:46 UTC (permalink / raw)
To: Andrew Morton, Linux-Kernel,
[-- Attachment #1: Type: text/plain, Size: 3193 bytes --]
On Fri, 20 Jan 2006 19:22:59 -0800, Andrew Morton <akpm@osdl.org> wrote:
> "J.A. Magallon" <jamagallon@able.es> wrote:
> >
> > On Sun, 11 Dec 2005 04:13:08 -0800, Andrew Morton <akpm@osdl.org> wrote:
> >
> > >
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.15-rc5/2.6.15-rc5-mm2/
> > >
> >
> > Booting a SMP built kernel with 'nosmp' just hangs at the VFS layer, with
> > the message about 'not being able to find root device sda1'.
> > sda is a SATA drive on an Intel ICH5 controller:
> >
> > libata version 1.20 loaded.
> > ata_piix 0000:00:1f.2: version 1.05
> > ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, low) -> IRQ 16
> > PCI: Setting latency timer of device 0000:00:1f.2 to 64
> > ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 16
> > ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 16
> > ata1: dev 0 cfg 49:2f00 82:346b 83:7d01 84:4003 85:3469 86:3c01 87:4003 88:407f
> > ata1: dev 0 ATA-6, max UDMA/133, 390721968 sectors: LBA48
> > ata1: dev 0 configured for UDMA/133
> > scsi0 : ata_piix
> > ATA: abnormal status 0x7F on port 0xC807
> > scsi1 : ata_piix
> > Vendor: ATA Model: ST3200822AS Rev: 3.01
> > Type: Direct-Access ANSI SCSI revision: 05
> > SCSI device sda: 390721968 512-byte hdwr sectors (200050 MB)
> > SCSI device sda: drive cache: write back
> > SCSI device sda: 390721968 512-byte hdwr sectors (200050 MB)
> > SCSI device sda: drive cache: write back
> > sda: sda1 sda2 sda3
> > sd 0:0:0:0: Attached scsi disk sda
> >
> > I would have to double check, but I think it even missed the USB keyboard.
> >
>
> Is this still happening?
Yes. I have just tried with 2.6.16-rc1-mm2, and the result is the same.
No root device.
The nosmp-booted kernel looks much much slow than the SMP one, it takes
ages to detect devices like usb ones, and even spent about 20 seconds here:
[ 0.431601] libata version 1.20 loaded.
[ 0.431652] ata_piix 0000:00:1f.2: version 1.05
[ 0.431670] ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, low) -> IRQ 16
[ 0.431792] PCI: Setting latency timer of device 0000:00:1f.2 to 64
[ 0.431852] ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 16
[ 0.431950] ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 16
>>>>>>>>>>>>> here <<<<<<<<<<<<<<<<<<
[ 0.690451] ata1: dev 0 cfg 49:2f00 82:346b 83:7d01 84:4003 85:3469 86:3c01 87:4003 88:407f
[ 0.690456] ata1: dev 0 ATA-6, max UDMA/133, 390721968 sectors: LBA48
[ 0.696278] ata1: dev 0 configured for UDMA/133
[ 0.701627] scsi0 : ata_piix
[ 1.937443] scsi1 : ata_piix
and it did not detect any drive, so the no-root-device error. This one can be
a detection timeout, but as I say also the USB detection is dog slooow.
Need some info ? .config, or the like ?
--
J.A. Magallon <jamagallon()able!es> \ Software is like sex:
werewolf!able!es \ It's better when it's free
Mandriva Linux release 2006.1 (Cooker) for i586
Linux 2.6.15-jam5 (gcc 4.0.2 (4.0.2-1mdk for Mandriva Linux release 2006.1))
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^ permalink raw reply [flat|nested] 5+ messages in thread
* SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2]
2005-12-11 12:13 2.6.15-rc5-mm2 Andrew Morton
@ 2005-12-14 8:54 ` J.A. Magallon
[not found] ` <20060120192259.4460af42.akpm@osdl.org>
0 siblings, 1 reply; 5+ messages in thread
From: J.A. Magallon @ 2005-12-14 8:54 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1740 bytes --]
On Sun, 11 Dec 2005 04:13:08 -0800, Andrew Morton <akpm@osdl.org> wrote:
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.15-rc5/2.6.15-rc5-mm2/
>
Booting a SMP built kernel with 'nosmp' just hangs at the VFS layer, with
the message about 'not being able to find root device sda1'.
sda is a SATA drive on an Intel ICH5 controller:
libata version 1.20 loaded.
ata_piix 0000:00:1f.2: version 1.05
ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 16
ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 16
ata1: dev 0 cfg 49:2f00 82:346b 83:7d01 84:4003 85:3469 86:3c01 87:4003 88:407f
ata1: dev 0 ATA-6, max UDMA/133, 390721968 sectors: LBA48
ata1: dev 0 configured for UDMA/133
scsi0 : ata_piix
ATA: abnormal status 0x7F on port 0xC807
scsi1 : ata_piix
Vendor: ATA Model: ST3200822AS Rev: 3.01
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sda: 390721968 512-byte hdwr sectors (200050 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 390721968 512-byte hdwr sectors (200050 MB)
SCSI device sda: drive cache: write back
sda: sda1 sda2 sda3
sd 0:0:0:0: Attached scsi disk sda
I would have to double check, but I think it even missed the USB keyboard.
Something really strange...
--
J.A. Magallon <jamagallon()able!es> \ Software is like sex:
werewolf!able!es \ It's better when it's free
Mandriva Linux release 2006.1 (Cooker) for i586
Linux 2.6.14-jam4 (gcc 4.0.2 (4.0.2-1mdk for Mandriva Linux release 2006.1))
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2006-01-22 21:47 SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2] Brown, Len
2006-01-22 22:48 ` Randy.Dunlap
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2005-12-11 12:13 2.6.15-rc5-mm2 Andrew Morton
2005-12-14 8:54 ` SMP+nosmp=hang [was: Re: 2.6.15-rc5-mm2] J.A. Magallon
[not found] ` <20060120192259.4460af42.akpm@osdl.org>
2006-01-21 23:46 ` J.A. Magallon
2006-01-22 0:22 ` Randy.Dunlap
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