Kernel fails to load on OptiPlex 960

[kallisti5]

The kernel fails to load on the Dell OptiPlex 960.

Serial connected shows:

size: 37.6 cm x 30.1 cm
border: 0 cm x 0 cm
Serial Number: G434H87FGB2U
Monitor Name: DELL 1908FP
Horizontal frequency range = 30..81 kHz
Vertical frequency range = 56..76 Hz
Maximum pixel clock = 140 MHz
crtc: h 1328/1440/1688, v 1025/1028/1066, pixel clock 108000000, refresh 6064
Welcome to the Haiku boot loader!
number of drives: 2
add_partitions_for(0x00105420, mountFS = no)
add_partitions_for(fd = 0, mountFS = no)
0x00105648 Partition::Partition
0x00105648 Partition::Scan()
check for partitioning_system: GUID Partition Map
check for partitioning_system: Intel Partition Map
  priority: 810
check for partitioning_system: Intel Extended Partition
0x001057c0 Partition::Partition
0x00105648 Partition::AddChild 0x001057c0
0x001057c0 Partition::SetParent 0x00105648
new child partition!
0x00105648 Partition::Scan(): scan child 0x001057c0 (start = 4194304, size = 629145600, parent = 0x00105648)!
0x001057c0 Partition::Scan()
check for partitioning_system: GUID Partition Map
check for partitioning_system: Intel Partition Map
check for partitioning_system: Intel Extended Partition
0x00105648 Partition::~Partition
0x001057c0 Partition::SetParent 0x00000000
boot partition offset: 4194304
0x001057c0 Partition::_Mount check for file_system: BFS Filesystem
PackageVolumeInfo::SetTo()
PackageVolumeInfo::_InitState(): failed to parse activated-packages: No such file or directory
load kernel kernel_x86_64...
<LOCKUP>

A random mixture of BIOS / boot options tried.

Intel Core 2 vPro

Boot was attempted with intel_extreme driver blacklisted for good measure, no changes.

32-bit and 64-bit kernels both fail with same issue

[kallisti5]

(tested via hrev50007)

[kallisti5]

hrev47868: works

[kallisti5]

hrev49910: broken

[kallisti5]

hrev48498: broken

Regression Range: hrev47868 - hrev48498

[kallisti5]

hrev47961: working

Regression Range: hrev47961 - hrev48498

[kallisti5]

hrev48309: working

Regression Range: hrev48309 - hrev48498

[kallisti5]

​http://cgit.haiku-os.org/haiku/log/?ofs=3050

[kallisti5]

​http://cgit.haiku-os.org/haiku/commit/?id=f3e381dd0cf6a08c2e20c8c24f5ff8b78ac04032 was the regression... undoing it results in a booting system.

[kallisti5]

resolved in hrev50070. Let me know if anyone knows why :-\

[axeld]

Was this a GCC4 only build?

[kallisti5]

Yeah, I never tested gcc2. I can do a quick test of gcc2 pre-hrev50070 this evening.

[axeld]

According to korli's commit message, that version should still be running. It would be interesting to know the difference of the assembly output of the GCC compiler version from back then, and the version that we're now using.