Re: kern/59876 (igc0: unable to initialize)

The following reply was made to PR kern/59876; it has been noted by GNATS.

From: Shinichi Doyashiki <[email protected]>
To: [email protected], [email protected], [email protected],
 [email protected], [email protected]
Cc: 
Subject: Re: kern/59876 (igc0: unable to initialize)
Date: Mon, 20 Jul 2026 15:14:22 +0900

 the ASROCK J4125M (BIOS version 1.60) requires PCI fixup kernel options for the 
 Intel i226-V.  the igc driver in the NetBSD 11_RC6 GENERIC kernel cannot 
 initialize the Intel i226-V add-on card on the ASROCK J4125M
 mainboard.
 
 with kernel with PCI BUS/ADDR/INTR FIXUP options:
 
 ...
 [   1.0244395] pci1 at ppb0 bus 1
 [   1.0244395] igc0 at pci1 dev 0 function 0: Intel(R) Ethernet Controller 
 I226-V (rev. 0x04)
 [   1.0244395] igc0: txrx interrupting at msix2 vec 0
 [   1.0244395] igc0: txrx interrupting at msix2 vec 1
 [   1.0244395] igc0: txrx interrupting at msix2 vec 2
 [   1.0244395] igc0: txrx interrupting at msix2 vec 3
 [   1.0244395] igc0: link interrupting at msix2 vec 4
 [   1.0244395] igc0: PHY: OUI 0x984fee model 0x0005, rev. 8, PHY FW version 
 0x8877
 [   1.0244395] igc0: NVM image version 2.14, EtrackID 8000028d
 ...
 
 with GENERIC kernel:
 
 ...
 [   1.0244144] pci1 at ppb0 bus 1
 [   1.0244144] igc0 at pci1 dev 0 function 0: Intel(R) Ethernet Controller 
 I226-V (rev. 0x04)
 [   1.0244144] igc0: unable to initialize
 [   1.0244144] uvm_fault(0xffffffff81976e60, 0x0, 1) -> e
 [   1.0244144] fatal page fault in supervisor mode
 [   1.0244144] trap type 6 code 0 rip 0xffffffff80d33076 cs 0x8 rflags 0x10246 cr2 
 0x20 ilevel 0x8 rsp 0xffffffff81d56360
 [   1.0244144] curlwp 0xffffffff8188bdc0 pid 0.0 lowest kstack 0xffffffff81d512c0
 kernel: page fault trap, code=0
 Stopped in pid 0.0 (system) at  netbsd:pool_cache_put_paddr+0x7f:       cmpq    
 20(%rax),%rax
 pool_cache_put_paddr() at netbsd:pool_cache_put_paddr+0x7f
 config_attach_internal() at netbsd:config_attach_internal+0x217
 config_found_acquire() at netbsd:config_found_acquire+0x5d
 config_found() at netbsd:config_found+0xe
 pci_probe_device1() at netbsd:pci_probe_device1+0x6b9
 pci_enumerate_bus1() at netbsd:pci_enumerate_bus1+0x1af
 pciattach() at netbsd:pciattach+0x19d
 config_attach_internal() at netbsd:config_attach_internal+0x217
 config_found_acquire() at netbsd:config_found_acquire+0x5d
 config_found() at netbsd:config_found+0xe
 ppbattach() at netbsd:ppbattach+0x227
 config_attach_internal() at netbsd:config_attach_internal+0x217
 config_found_acquire() at netbsd:config_found_acquire+0x5d
 config_found() at netbsd:config_found+0xe
 pci_probe_device1() at netbsd:pci_probe_device1+0x6b9
 pci_enumerate_bus1() at netbsd:pci_enumerate_bus1+0x1af
 pciattach() at netbsd:pciattach+0x19d
 config_attach_internal() at netbsd:config_attach_internal+0x217
 config_found_acquire() at netbsd:config_found_acquire+0x5d
 config_found() at netbsd:config_found+0xe
 mp_pci_scan() at netbsd:mp_pci_scan+0xcb
 amd64_mainbus_attach() at netbsd:amd64_mainbus_attach+0x358
 config_attach_internal() at netbsd:config_attach_internal+0x217
 config_rootfound() at netbsd:config_rootfound+0x7b
 cpu_configure() at netbsd:cpu_configure+0x38
 main() at netbsd:main+0x2bc
 ds          b980
 es          caab
 fs          6330
 gs          1a46
 rdi         ffffa1b8b4cf2080
 rsi         0
 rbp         ffffffff81d56380
 rbx         ffffa1b8b4cf2080
 rdx         ffffffffffffffff
 rcx         300
 rax         0
 r8          a1300000
 r9          20
 r10         ffffffff81913558    kernel_map_store+0x38
 r11         0
 r12         0
 r13         ffffffffffffffff
 r14         ffffffff813cab52    ostype+0x11569
 r15         ffffffff818a9d30    cfdata+0x6f30
 rip         ffffffff80d33076    pool_cache_put_paddr+0x7f
 cs          8
 rflags      10246
 rsp         ffffffff81d56360
 ss          10
 netbsd:pool_cache_put_paddr+0x7f:       cmpq    20(%rax),%rax