http://bugzilla.kernel.org/show_bug.cgi?id=6368
Summary: system hangs on boot after 'ACPI: Assume root bridge
(...'
Kernel Version: 2.6.17-rc1
Status: NEW
Severity: blocking
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: 2.6.16.1
Distribution: Debian Sarge, custom K
Hardware Environment:
# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Celeron(R) CPU 2.70GHz
stepping : 9
cpu MHz : 336.750
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips : 5389.63
# lspci
0000:00:00.0 Host bridge: Intel Corp. 82852/855GM Host Bridge (rev 02)
0000:00:00.1 System peripheral: Intel Corp. 855GM/GME GMCH Memory I/O Control
Registers (rev 02)
0000:00:00.3 System peripheral: Intel Corp. 855GM/GME GMCH Configuration Process
Registers (rev 02)
0000:00:02.0 VGA compatible controller: Intel Corp. 82852/855GM Integrated
Graphics Device (rev 02)
0000:00:02.1 Display controller: Intel Corp. 82852/855GM Integrated Graphics
Device (rev 02)
0000:00:1d.0 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #2 (rev 03)
0000:00:1d.7 USB Controller: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB 2.0 EHCI
Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev 83)
0000:00:1f.0 ISA bridge: Intel Corp. 82801DBM LPC Interface Controller (rev 03)
0000:00:1f.1 IDE interface: Intel Corp. 82801DBM (ICH4) Ultra ATA Storage
Controller (rev 03)
0000:00:1f.3 SMBus: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus
Controller (rev 03)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
0000:00:1f.6 Modem: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem
Controller (rev 03)
0000:01:05.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg
NIC (rev 01)
0000:01:08.0 Ethernet controller: Intel Corp. 82801BD PRO/100 VE (MOB) Ethernet
Controller (rev 83)
0000:01:0b.0 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI to Cardbus
Bridge with ZV Support (rev 33)
Software Environment:
Problem Description:
on boot, system hangs very early, last line is:
ACPI: Assume root bridge [\_SB_.PCI0] bus is 0
tried some acpi boot params but went nowhere.
tried some dgb_level, but seems impossible to catch msgs as it seems the
problem is a loop, hence same msgs get printed too fast to anything but that
they look like a repeated pattern. CPU gets hot, if left in this state.
With acpi=off system hangs early on boot as well, at 'probing PCI ...'
Steps to reproduce:
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