Crash due to DRM 6.11 update

Ricardo Branco <[email protected]> Thu, 23 Apr 2026 10:57:13 +0200
Newsgroups gmane.os.freebsd.stable
Message-ID <[email protected]>
FreeBSD-kernel-generic-15.snap20260422212203 incorporates changes for 
DRM 6.11
but graphics/drm-latest-kmod hasn't been updated in ports which still has
freebsd-drm-kmod-6.9-drm

It crashes so I have to comment the kld_list="i915kms" line.

[6] Loading kernel modules: i915kms
[6] <6>[drm] Got Intel graphics stolen memory base 0x7a800000, size 
0x4000000
[6] drmn1: <drmn> on vgapci1
[6] vgapci1: child drmn1 requested pci_enable_io
[6] vgapci1: child drmn1 requested pci_enable_io
[6] lkpi_iic0: <LinuxKPI I2C> on drmn1
[6] iicbus0: <Philips I2C bus> on lkpi_iic0
[6] iic0: <I2C generic I/O> on iicbus0
[6] lkpi_iic1: <LinuxKPI I2C> on drmn1
[6] iicbus1: <Philips I2C bus> on lkpi_iic1
[6] iic1: <I2C generic I/O> on iicbus1
[6] lkpi_iic2: <LinuxKPI I2C> on drmn1
[6] iicbus2: <Philips I2C bus> on lkpi_iic2
[6] iic2: <I2C generic I/O> on iicbus2
[6] drmn1: successfully loaded firmware image 'i915/skl_dmc_ver1_27.bin'
[6] drmn1: [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin 
(v1.27)
[8]
[8]
[8] Fatal trap 12: page fault while in kernel mode
[8] cpuid = 3; apic id = 03
[8] fault virtual address    = 0x4
[8] fault code        = supervisor write data, page not present
[8] instruction pointer    = 0x20:0xffffffff84f81bc0
[8] stack pointer            = 0x28:0xfffffe00fc25a690
[8] frame pointer            = 0x28:0xfffffe00fc25a6c0
[8] code segment        = base 0x0, limit 0xfffff, type 0x1b
[8]             = DPL 0, pres 1, long 1, def32 0, gran 1
[8] processor eflags    = interrupt enabled, resume, IOPL = 0
[8] current process        = 9066 (kldload)
[8] rdi: fffff80001546800 rsi: fffff8002356c700 rdx: 0000000000000000
[8] rcx: 0000000000000001  r8: 00000000000000cd  r9: 0000000000020000
[8] rax: 0000000000000004 rbx: 0000000000000000 rbp: fffffe00fc25a6c0
[8] r10: 0000000000000000 r11: 00000000007e9000 r12: fffff80005351000
[8] r13: fffffe01395dd000 r14: fffff80001546800 r15: fffff8002356c700
[8] trap number        = 12
[8] panic: page fault
[8] cpuid = 3
[8] time = 1776931349
[8] KDB: stack backtrace:
[8] #0 0xffffffff80bcf57d at kdb_backtrace+0x5d
[8] #1 0xffffffff80b80196 at vpanic+0x136
[8] #2 0xffffffff80b80053 at panic+0x43
[8] #3 0xffffffff8109202d at trap_pfault+0x37d
[8] #4 0xffffffff81067a08 at calltrap+0x8
[8] #5 0xffffffff84f8120e at i915_gem_context_open+0x1ae
[8] #6 0xffffffff84e0835d at i915_gem_open+0x8d
[8] #7 0xffffffff8504c83a at drm_file_alloc+0x21a
[8] #8 0xffffffff85035367 at drm_client_init+0x67
[8] #9 0xffffffff85073853 at drm_fb_helper_init+0x33
[8] #10 0xffffffff84fa7d1f at intel_fbdev_init+0x53f
[8] #11 0xffffffff84ebcc38 at intel_display_driver_probe+0x58
[8] #12 0xffffffff84e03c1b at i915_driver_probe+0x81b
[8] #13 0xffffffff80e10b3c at linux_pci_attach_device+0x57c
[8] #14 0xffffffff80bbe44d at device_attach+0x43d
[8] #15 0xffffffff80bc01a3 at bus_generic_driver_added+0x73
[8] #16 0xffffffff80bbba09 at devclass_driver_added+0x29
[8] #17 0xffffffff80bbb99e at devclass_add_driver+0x11e