Hi
I try to run a SMP system (hyperthreading cpu) with enhanced SATA enabled
and i have failed to do so for a few days now. I found a thread on lkml that
talks
about that issue which seems to be successfully resolved when -ac4 kernel
and its new scsi sata driver are used.
http://lists.insecure.org/lists/linux-kernel/2003/Jul/0301.html
I followed the instructions and talked to Jeff Mock (he is running the
kernel
successfully with enhanced sata mode and posted the problem to the list) -
we
exchanged kernel configs, but my system still hangs on boot... Now here are
my
observations:
When I am booting with kernel-2.4.21-ac4-smp the system hangs. Here are the
last three lines of output:
-----
SCSI subsystem driver revision: 1.00
ata1: SATA max UDMA/100 cmd 0xEF88 ctl 0xEF86 bmdma 0xEEB0 irq 18
ata2: SATA max UDMA/100 cmd 0xEF68 ctl 0xEF82 bmdma 0xEEB8 irq 18
When I am booting 2.4.21-ac4 in uniprocessor mode output looks like:
-----
SCSI subsystem driver Revision: 1.00
ata_piix version 0.9
PCI: Setting latency timer of device 00:1f.2 to 64
ata1: SATA max UDMA/100 cmd 0xEF88 ctl 0xEF86 bmdma 0xEEB0 irq 18
ata2: SATA max UDMA/100 cmd 0xEF68 ctl 0xEF82 bmdma 0xEEB8 irq 18
ata1: dev 0 ATA, max UDMA/133, 156301488 sectors
ata1: dev 0 configured for UDMA/100
ata2: thread exiting
scsi0 : ata_piix
scsi1 : ata_piix
Vendor: ATA Model: ST380013AS Rev: 0.51
Type: Direct-Access ANSI SCSI revision: 05
libata version 0.51 loaded.
Jeff Mocks kernel output looks like this:
-----
SCSI subsystem driver Revision: 1.00
ata_piix version 0.9
PCI: Setting latency timer of device 00:1f.2 to 64
ata1: SATA max UDMA/100 cmd 0xEC00 ctl 0xE802 bmdma 0xDC00 irq 18
ata2: SATA max UDMA/100 cmd 0xE400 ctl 0xE002 bmdma 0xDC08 irq 18
ata1: dev 0 ATA, max UDMA/133, 240121728 sectors
ata1: dev 0 configured for UDMA/100
ata2: dev 0 ATA, max UDMA/133, 240121728 sectors
ata2: dev 0 configured for UDMA/100
scsi0 : ata_piix
scsi1 : ata_piix
Vendor: ATA Model: Maxtor 6Y120M0 Rev: 0.51
Type: Direct-Access ANSI SCSI revision: 05
Vendor: ATA Model: Maxtor 6Y120M0 Rev: 0.51
Type: Direct-Access ANSI SCSI revision: 05
libata version 0.51 loaded.
The difference between our systems is that i have a I865PE board with ICH5
controller and he has a I875P board with ICH5 controller. Both of us are
running
a mix of PATA and SATA drives and use SMP enabled kernels. Jeff has 2
SATA drives i have only one (i hope that's not the problem).
I have tried to use the following kernels (smp support enabled) with
enhanced
SATA enabled in BIOS:
2.4.20-gentoo-patched: not working at all
2.4.21: works but does not detect "second cpu"
2.4.21-ac4: hangs, detects smp
2.4.22-pre3: works but does not detect "second cpu"
2.4.22-pre3-ac1: does not compile (undefined reference to `xapic_support')
2.5.74: works, detects smp - but no onboard Gbit NIC driver or nvidia driver
available
Using 2.4.21-ac4 without smp support, the scsi SATA driver works (as shown
above), the machine boots and accesses the SATA disk on /dev/sda. As I need
SMP support for improved compile times (has high priority on gentoo systems
;-)) I currently run a 2.4.21-ac4 smp-kernel with legacy (compatible) SATA
mode enabled in BIOS. I'd like to use SATA in enhanced mode, so I'm asking
for some hints what to try to get SATA _and_ SMP working. A 2.5 series
kernel
is currently no option for me as i have no NIC and nvidia driver for it.
Unpatched kernels don't detect my AGP controller correctly and seem to have
problems detecting P4 HT cpus as "smp" system...
Conclusion: I think the problem is related to SMP and my chipset somehow, if
anybody can prove that, i might be able to return my mobo and only pay up
for
a I875 based board in return. If it's not the chipset then there's a problem
with
the driver it think - a wild guess from me would be that there's a thread
locking/starvation problem when the sata devices are checked ('thread
exited'
is mentioned on uniproc-boot, smp-boot doesn't get that far?)
Thanks in advance for any help or hints, i'm not on the list please put me
on CC
when answering.
Mike
-- +++ GMX - Mail, Messaging & more http://www.gmx.net +++Jetzt ein- oder umsteigen und USB-Speicheruhr als Prämie sichern!
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue Jul 15 2003 - 22:00:32 EST