While testing ACPI cpu hotplug changes I stumbled on BSOD in case
QEMU is configured with 256 CPUs, Windows Server 2012R2x64 fails to boot
with bugcheck 5C
qemu-system-x86_64 -m 4G -smp 2,sockets=64,cores=4,maxcpus=256 -M
q35,kernel-irqchip=split -enable-kvm -device intel-iommu,intremap=on,eim=on
ws2012r2x64DCchk.qcow2
Looking at stacktrace, it seems that is fails when trying to initialize iommu
hal_interrupt_remapping_setup_failure_nt!initbootprocessor
Any idea what to try to figure out what QEMU is missing wrt intremap?
PS:
WS2016 boots eventually, but CPU hotplug doesn't work, symptoms (unconfirmed
yet) like SCI isn't being delivered.
With RHEL76 the same config works fine.
---
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
HAL_INITIALIZATION_FAILED (5c)
Arguments:
Arg1: 0000000000007000
Arg2: 0000000000000618
Arg3: ffffffffc00000bb
Arg4: 0000000000000000
Debugging Details:
------------------
DEFAULT_BUCKET_ID: WIN8_DRIVER_FAULT
BUGCHECK_STR: 0x5C
CURRENT_IRQL: 0
ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre
DPC_STACK_BASE: FFFFF80225BE3FB0
LAST_CONTROL_TRANSFER: from fffff80221aa9714 to fffff80221c95801
STACK_TEXT:
fffff802`25bdbcd8 fffff802`21aa9714 : fffff6fc`01114af8 fffff6fb`7e0088a0
fffff6fb`7dbf0040 fffff6fb`7dbedf80 : nt!DbgBreakPointWithStatus+0x1
fffff802`25bdbce0 fffff802`21aaabff : 00000000`00000004 00000000`00000000
00000000`00000000 ffffffff`c00000bb : nt!KiBugCheckDebugBreak+0x14
fffff802`25bdbd50 fffff802`21c8fb94 : 00000000`0000005c 00000000`00007000
00000000`00000618 ffffffff`c00000bb : nt!KeBugCheck2+0xdd7
fffff802`25bdc460 fffff802`2297c94a : 00000000`0000005c 00000000`00007000
00000000`00000618 ffffffff`c00000bb : nt!KeBugCheckEx+0x104
fffff802`25bdc4a0 fffff802`2297c9ac : fffff802`20c735d0 00000000`00000000
00000000`00000009 fffff802`20c735f0 : hal!HalpInitializeInterrupts+0x406
fffff802`25bdc4f0 fffff802`229728aa : fffff802`20c735d0 fffff802`229742ce
fffff802`20c735d0 00000000`00000007 : hal!HalpInterruptInitDiscard+0x3c
fffff802`25bdc520 fffff802`2297221c : fffff802`00000008 00000000`00000000
fffff802`20c735d0 00000000`00000008 : hal!HalpInterruptInitSystem+0xf6
fffff802`25bdc560 fffff802`2297c537 : fffff802`00000006 fffff802`0000000c
fffff802`20c735d0 fffff802`20c735d0 : hal!HalpInitSystemHelper+0x44
fffff802`25bdc5c0 fffff802`2285467d : fffff802`20c735d0 fffff802`20c735d0
fffff802`25bdc6f0 00000000`00010228 : hal!HalpInitSystemPhase0+0x1b
fffff802`25bdc5f0 fffff802`222d065f : fffff802`20c735d0 00000000`00000000
00000000`00000000 fffff802`21cf6180 : nt!InitBootProcessor+0x265
fffff802`25bdc870 fffff802`222e4073 : fffff802`222ae400 fffff802`222aeac0
fffff802`25bdd000 fffff802`21cf6180 : nt!KiInitializeKernel+0xd83
fffff802`25bdcc10 00000000`00000000 : 00000000`00000000 00000000`00000000
00000000`00000000 00000000`00000000 : nt!KiSystemStartup+0x193
STACK_COMMAND: kb
FOLLOWUP_IP:
nt!InitBootProcessor+265
fffff802`2285467d 84c0 test al,al
SYMBOL_STACK_INDEX: 9
SYMBOL_NAME: nt!InitBootProcessor+265
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 5215d150
IMAGE_VERSION: 6.3.9600.16384
BUCKET_ID_FUNC_OFFSET: 265
FAILURE_BUCKET_ID:
0x5C_HAL_INTERRUPT_REMAPPING_SETUP_FAILURE_nt!InitBootProcessor
BUCKET_ID: 0x5C_HAL_INTERRUPT_REMAPPING_SETUP_FAILURE_nt!InitBootProcessor
ANALYSIS_SOURCE: KM
FAILURE_ID_HASH_STRING:
km:0x5c_hal_interrupt_remapping_setup_failure_nt!initbootprocessor
FAILURE_ID_HASH: {85a33624-5d0e-3044-bbaa-0bdba50d221b}
