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

[bugzilla-noreply at freebsd.org]

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

            Bug ID: 237686
           Summary: graphics/drm-fbsd12.0-kmod panic on 12.0-RELEASE-p3
                    with Radeon R5 230
           Product: Base System
           Version: 12.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: tingox+freebsd at gmail.com

Created attachment 204141
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=204141&action=edit
/var/crash/core.txt.0

A machine with a Radeon R5 230 (which is a rebrand of Radeon HD 6450 AFAIUI)
panics after a few hours  if running Xorg and with Firefox open. No specific
activity on the user needed. Before the Radeon R5 230 I had a nVidia card in it
(old) and the machine ran for several weeks with that, so I think the machine
hardware is good.

The machine runs
root at kg-core2# uname -a
FreeBSD kg-core2.kg4.no 12.0-RELEASE-p3 FreeBSD 12.0-RELEASE-p3 GENERIC  amd64
root at kg-core2# freebsd-version -ku
12.0-RELEASE-p3
12.0-RELEASE-p3
updated via freebsd-update

Packages installed via pkg, no ports on this machine.
root at kg-core2# pkg info drm*
drm-fbsd12.0-kmod-4.16.g20190424
drm-kmod-g20181126

panic from /var/log/messages
Apr 30 20:01:28 kg-core2 syslogd: last message repeated 1 times
Apr 30 20:01:28 kg-core2 kernel: Fatal trap 12: page fault while in kernel mode
Apr 30 20:01:28 kg-core2 kernel: cpuid = 6; apic id = 08
Apr 30 20:01:28 kg-core2 kernel: fault virtual address  = 0x7ea
Apr 30 20:01:28 kg-core2 kernel: fault code             = supervisor read data,
page not present
Apr 30 20:01:28 kg-core2 kernel: instruction pointer    =
0x20:0xffffffff828d69bc
Apr 30 20:01:28 kg-core2 kernel: stack pointer          =
0x28:0xfffffe009d564200
Apr 30 20:01:28 kg-core2 kernel: frame pointer          =
0x28:0xfffffe009d564230
Apr 30 20:01:28 kg-core2 kernel: code segment           = base 0x0, limit
0xfffff, type 0x1b
Apr 30 20:01:28 kg-core2 kernel:                        = DPL 0, pres 1, long
1, def32 0, gran 1
Apr 30 20:01:28 kg-core2 kernel: processor eflags       = interrupt enabled,
resume, IOPL = 3
Apr 30 20:01:28 kg-core2 kernel: current process                = 1126 (X:rcs0)
Apr 30 20:01:28 kg-core2 kernel: trap number            = 12
Apr 30 20:01:28 kg-core2 kernel: panic: page fault
Apr 30 20:01:28 kg-core2 kernel: cpuid = 6
Apr 30 20:01:28 kg-core2 kernel: time = 1556647242
Apr 30 20:01:28 kg-core2 kernel: KDB: stack backtrace:
Apr 30 20:01:28 kg-core2 kernel: #0 0xffffffff80be7977 at kdb_backtrace+0x67
Apr 30 20:01:28 kg-core2 kernel: #1 0xffffffff80b9b563 at vpanic+0x1a3
Apr 30 20:01:28 kg-core2 kernel: #2 0xffffffff80b9b3b3 at panic+0x43
Apr 30 20:01:28 kg-core2 kernel: #3 0xffffffff8107496f at trap_fatal+0x35f
Apr 30 20:01:28 kg-core2 kernel: #4 0xffffffff810749c9 at trap_pfault+0x49
Apr 30 20:01:28 kg-core2 kernel: #5 0xffffffff81073fee at trap+0x29e
Apr 30 20:01:28 kg-core2 kernel: #6 0xffffffff8104f435 at calltrap+0x8
Apr 30 20:01:28 kg-core2 kernel: #7 0xffffffff828b16ba at radeon_cs_ioctl+0xa4a
Apr 30 20:01:28 kg-core2 kernel: #8 0xffffffff829acca6 at drm_ioctl_kernel+0xf6
Apr 30 20:01:28 kg-core2 kernel: #9 0xffffffff829acf41 at drm_ioctl+0x281
Apr 30 20:01:28 kg-core2 kernel: #10 0xffffffff829eebd4 at
linux_file_ioctl+0x204
Apr 30 20:01:28 kg-core2 kernel: #11 0xffffffff80c04f3d at kern_ioctl+0x26d
Apr 30 20:01:28 kg-core2 kernel: #12 0xffffffff80c04c5e at sys_ioctl+0x15e
Apr 30 20:01:28 kg-core2 kernel: #13 0xffffffff81075449 at amd64_syscall+0x369
Apr 30 20:01:28 kg-core2 kernel: #14 0xffffffff8104fd1d at
fast_syscall_common+0x101
Apr 30 20:01:28 kg-core2 kernel: Uptime: 21h32m35s
Apr 30 20:01:28 kg-core2 kernel: ---<<BOOT>>---

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