[Bug 237686] graphics/drm-fbsd12.0-kmod panic on 12.0-RELEASE-p3 with Radeon R5 230

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237686

--- Comment #1 from Torfinn Ingolfsen <tingox+freebsd at gmail.com> ---
The panic is repeatable
May  1 02:34:52 kg-core2 kernel: Fatal trap 12: page fault while in kernel mode
May  1 02:34:52 kg-core2 kernel: cpuid = 4; apic id = 04
May  1 02:34:52 kg-core2 kernel: fault virtual address  = 0x88e
May  1 02:34:52 kg-core2 kernel: fault code             = supervisor read data,
page not present
May  1 02:34:52 kg-core2 kernel: instruction pointer    =
0x20:0xffffffff828d69bc
May  1 02:34:52 kg-core2 kernel: stack pointer          =
0x28:0xfffffe009d55d200
May  1 02:34:52 kg-core2 kernel: frame pointer          =
0x28:0xfffffe009d55d230
May  1 02:34:52 kg-core2 kernel: code segment           = base 0x0, limit
0xfffff, type 0x1b
May  1 02:34:52 kg-core2 kernel:                        = DPL 0, pres 1, long
1, def32 0, gran 1
May  1 02:34:52 kg-core2 kernel: processor eflags       = interrupt enabled,
resume, IOPL = 3
May  1 02:34:52 kg-core2 kernel: current process                = 1457 (X:rcs0)
May  1 02:34:52 kg-core2 kernel: trap number            = 12
May  1 02:34:52 kg-core2 kernel: panic: page fault
May  1 02:34:52 kg-core2 kernel: cpuid = 4
May  1 02:34:52 kg-core2 kernel: time = 1556670846
May  1 02:34:52 kg-core2 kernel: KDB: stack backtrace:
May  1 02:34:52 kg-core2 kernel: #0 0xffffffff80be7977 at kdb_backtrace+0x67
May  1 02:34:52 kg-core2 kernel: #1 0xffffffff80b9b563 at vpanic+0x1a3
May  1 02:34:52 kg-core2 kernel: #2 0xffffffff80b9b3b3 at panic+0x43
May  1 02:34:52 kg-core2 kernel: #3 0xffffffff8107496f at trap_fatal+0x35f
May  1 02:34:52 kg-core2 kernel: #4 0xffffffff810749c9 at trap_pfault+0x49
May  1 02:34:52 kg-core2 kernel: #5 0xffffffff81073fee at trap+0x29e
May  1 02:34:52 kg-core2 kernel: #6 0xffffffff8104f435 at calltrap+0x8
May  1 02:34:52 kg-core2 kernel: #7 0xffffffff828b16ba at radeon_cs_ioctl+0xa4a
May  1 02:34:52 kg-core2 kernel: #8 0xffffffff829acca6 at drm_ioctl_kernel+0xf6
May  1 02:34:52 kg-core2 kernel: #9 0xffffffff829acf41 at drm_ioctl+0x281
May  1 02:34:52 kg-core2 kernel: #10 0xffffffff829eebd4 at
linux_file_ioctl+0x204
May  1 02:34:52 kg-core2 kernel: #11 0xffffffff80c04f3d at kern_ioctl+0x26d
May  1 02:34:52 kg-core2 kernel: #12 0xffffffff80c04c5e at sys_ioctl+0x15e
May  1 02:34:52 kg-core2 kernel: #13 0xffffffff81075449 at amd64_syscall+0x369
May  1 02:34:52 kg-core2 kernel: #14 0xffffffff8104fd1d at
fast_syscall_common+0x101
May  1 02:34:52 kg-core2 kernel: Uptime: 6h32m52s
May  1 02:34:52 kg-core2 kernel: ---<<BOOT>>---

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