Intel X550-T2 ixs.sys bugcheck (minidump provided)

[gnif]

I have a system that has been stable under Linux for many years and recently I needed to use Windows 11 on the same platform.

While using the system I get random bugchecks for `DRIVER_IRQL_NOT_LESS_OR_EQUAL`. The minidump shows a stack trace pointing the problem at the ixs.sys driver:

nt!KeBugCheckEx:
fffff806`893005d0 48894c2408      mov     qword ptr [rsp+8],rcx ss:0018:ffffda0b`77afee90=000000000000000a

ffffda0b`77afee88 fffff806`89105e6f     : 00000000`0000000a 00000000`00000002 00000000`0000000f 00000000`00000000 : nt!KeBugCheckEx
ffffda0b`77afee90 fffff806`89105f73     : 00000000`00000002 fffff806`1c534550 00000000`00000000 ffffa389`34be9ca0 : nt!KiExpandKernelStackAndCalloutSwitchStack+0x19f
ffffda0b`77afef00 fffff806`891060bd     : fffff806`1c534550 ffffda0b`77aff030 ffffa389`34cf6910 00000000`00000000 : nt!KeExpandKernelStackAndCalloutInternal+0x33
ffffda0b`77afef70 fffff806`1c528b98     : ffff6359`c8c5d185 00000000`00000001 ffffa389`3a89a9f0 00000000`00000000 : nt!KeExpandKernelStackAndCalloutEx+0x1d
ffffda0b`77afefb0 fffff806`1c536437     : 00000000`00000002 00000000`00000002 00000000`00000801 ffffa389`38982010 : tcpip!NetioExpandKernelStackAndCallout+0x58
ffffda0b`77aff000 fffff806`1c18a02f     : 00000000`00000000 ffffa389`3a89a9f0 ffffa389`00000000 ffffda0b`00000001 : tcpip!FlReceiveNetBufferListChain+0x1b7
ffffda0b`77aff090 fffff806`1c1899d8     : ffffa389`349268a0 fffff806`1c189b00 ffffa389`00000000 ffffa389`00000001 : ndis!ndisMIndicateNetBufferListsToOpen+0x4ff
ffffda0b`77aff380 fffff806`1c196908     : ffffa389`3485f068 00000000`00000000 00000000`00000000 00000000`00000000 : ndis!ndisIndicateSortedNetBufferLists+0x58
ffffda0b`77aff3e0 fffff806`1c1874a6     : ffffa389`381861a0 00000000`00000001 00000000`00000000 00000000`00000001 : ndis!ndisMDispatchReceiveNetBufferListsWithLock+0x1e8
ffffda0b`77aff460 fffff806`1c186030     : ffffa389`381861a0 ffffa389`3a89a9f0 ffffa389`349288a0 00000000`00000001 : ndis!ndisMTopReceiveNetBufferLists+0x3f6
ffffda0b`77aff570 fffff806`24b36dce     : 00000000`00000000 00000000`00000000 00000000`00000000 ffffda0b`77affa78 : ndis!NdisMIndicateReceiveNetBufferLists+0xbb0
ffffda0b`77aff790 00000000`00000000     : 00000000`00000000 00000000`00000000 ffffda0b`77affa78 ffffa389`00000801 : ixs+0x16dce

I have installed the latest drivers (30.3) for the X550-T2 and have ensured the NVM is running the correct version for this driver according to the documentation.

As this device is completely stable under Linux and this fault is only evident under Windows it points to a bug in the driver itself.

Platform Details:
CPU: AMD EPYC 7473X
MB: SuperMicro H12SSL-i
RAM: 128GB ECC
OS: Windows 11 Pro (10.0.26100 Build 26100)
BIOS: American Megatrends Inc. T20240304184441, 4/03/2024

[MACM]

Hi gnif,

Thank you for your response.

Please accept our sincere apologies for the inconvenience caused.

We are looking into this and would request you to please allow us sometime.

We will get back to you soon.

Best Regards,

Mohammed Ali CM

Intel Customer Support

[Sreelakshmi1]

Hi gnif,

Greetings!

Please allow us some time, as we are currently consulting with our Engineering team regarding the reported issue. We will get back to you with an update shortly.

Best Regards,

Sreelakshmi

Intel Customer Support Technician

[gnif]

I have no more time or patience with you to get this resolved, this device (and all other intel NICs in my infrastructure) are being relegated to the bin.

I have swapped to a Chelsio T6, and not only does it 'just work' for both Windows and Linux with the built in drivers, it's rock solid stable, and has not been crippled with the removal of VLAN functionality in Windows 11 like Intel did to the X550.

[Akshaya1]

Hi gnif,

We sincerely apologize for any inconvenience caused.

We are currently working with our Engineering Team to resolve the issue, and we will get back to you shortly with an update.

Thank you for your patience and understanding.

Regards,

Akshaya

Intel Customer support Technician

[Sachinks]

Hello gnif,

Greetings!

I’m truly sorry for the inconvenience you've experienced.

We understand your frustration and respect your decision to move to an alternative solution.

We have checked this with our team and we have tested the drivers from Driver pack 29.5, 30.1, 30.1.0.1, 30.3 and we did not encounter the BSOD or VLAN issues you described. We tested in 2 different platforms with X550-T2 and Windows 11 build 26100 and did not see any BSOD even after multiple boot ups/restarts/power cycles.

We appreciate your input—it helps us improve. If you need any assistance with other Intel products in the future, we’re here to help. We will go ahead and archive this thread for now.

Regards,

Sachin KS

Intel Customer Support Technician