Re: 2.6.23-rc3 - CONFIG_VMI broken

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Parag Warudkar wrote:
CONFIG_VMI seems to be broken, but I am not sure when - the last
kernel I was running was 2.6.22-rc4 which used to boot fine and use
VMI. Current git with same configuration causes the kernel to reboot
early. Logs below.

Deselecting CONFIG_VMI and rebuilding allows the kernel to boot normally.

(I am running it on VMWare workstation 6 latest release.)

Thanks

Parag

Linux version 2.6.23-rc3 (root@ubuntu) (gcc version 4.1.2 (Ubuntu
4.1.2-0ubuntu4)) #4 Mon Aug 13 21:50:06 EDT 2007
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
 BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000ca000 - 00000000000cc000 (reserved)
 BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000001fef0000 (usable)
 BIOS-e820: 000000001fef0000 - 000000001feff000 (ACPI data)
 BIOS-e820: 000000001feff000 - 000000001ff00000 (ACPI NVS)
 BIOS-e820: 000000001ff00000 - 0000000020000000 (usable)
 BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000fffe0000 - 0000000100000000 (reserved)
console [earlyser0] enabled
0MB HIGHMEM available.
512MB LOWMEM available.
found SMP MP-table at 000f6c90
VMI: Found VMware, Inc. Hypervisor OPROM, API version 3.0, ROM version 1.0
Reserving virtual address space above 0xfc000000
Int 14: CR2 fc37e260  err 00000000  EIP fc37e260  CS 00000062  flags 00010006
Stack: c0490ec7 c04913cb 00000001 00000000 fc001340 c047fff4 c04a6080 c047aa00

I reproduced this, slightly different EIP, but I notice that all paravirt-ops function calls are to bogus addresses; the first byte appears correct (0xfc00XXXX is in the VMI ROM range), and the extracted function addresses in the paravirt_ops struct are correct. However, it looks like the patching of the call instructions went wrong. Does this sound familiar to anyone?

In any case, I think the bug is already fixed.

Zach
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