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Date:      Tue, 08 Oct 2019 16:55:02 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 241101] i915kms working with 12.0 but not 12.1-BETA3
Message-ID:  <bug-241101-7788-Hd6J2UsUsQ@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-241101-7788@https.bugs.freebsd.org/bugzilla/>
References:  <bug-241101-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D241101

--- Comment #6 from Vincent DEFERT <20.100@defert.com> ---
GNU gdb (GDB) 8.3.1 [GDB v8.3.1 for FreeBSD]
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.htm=
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Reading symbols from /boot/kernel/kernel...
Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug...

Unread portion of the kernel message buffer:
<6>[drm] Connector eDP-1: get mode from tunables:
<6>[drm]   - kern.vt.fb.modes.eDP-1
<6>[drm]   - kern.vt.fb.default_mode
<6>[drm] Connector HDMI-A-1: get mode from tunables:
<6>[drm]   - kern.vt.fb.modes.HDMI-A-1
<6>[drm]   - kern.vt.fb.default_mode


Fatal trap 12: page fault while in kernel mode
cpuid =3D 2; apic id =3D 04
fault virtual address   =3D 0x1
fault code              =3D supervisor read data, page not present
instruction pointer     =3D 0x20:0xffffffff837a690f
stack pointer           =3D 0x28:0xfffffe000047f810
frame pointer           =3D 0x28:0xfffffe000047f880
code segment            =3D base 0x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
current process         =3D 0 (softirq_2)
trap number             =3D 12
panic: page fault
cpuid =3D 2
time =3D 1570553153
KDB: stack backtrace:
#0 0xffffffff80c1d207 at kdb_backtrace+0x67
#1 0xffffffff80bd053d at vpanic+0x19d
#2 0xffffffff80bd0393 at panic+0x43
#3 0xffffffff810a7d2c at trap_fatal+0x39c
#4 0xffffffff810a7d79 at trap_pfault+0x49
#5 0xffffffff810a736f at trap+0x29f
#6 0xffffffff8108129c at calltrap+0x8
#7 0xffffffff838a2480 at tasklet_handler+0x100
#8 0xffffffff80c1bac4 at gtaskqueue_run_locked+0x144
#9 0xffffffff80c1b728 at gtaskqueue_thread_loop+0x98
#10 0xffffffff80b90b93 at fork_exit+0x83
#11 0xffffffff810822de at fork_trampoline+0xe
Uptime: 5m12s
Dumping 619 out of 3880 MB:..3%..11%..21%..31%..42%..52%..62%..73%..81%..91%

__curthread () at /usr/src/sys/amd64/include/pcpu.h:234
234             __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n"
(OFFSETOF_CURTHREAD));
(kgdb) #0  __curthread () at /usr/src/sys/amd64/include/pcpu.h:234
#1  doadump (textdump=3D<optimized out>) at /usr/src/sys/kern/kern_shutdown=
.c:371
#2  0xffffffff80bd0138 in kern_reboot (howto=3D260)
    at /usr/src/sys/kern/kern_shutdown.c:451
#3  0xffffffff80bd0599 in vpanic (fmt=3D<optimized out>, ap=3D<optimized ou=
t>)
    at /usr/src/sys/kern/kern_shutdown.c:877
#4  0xffffffff80bd0393 in panic (fmt=3D<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:804
#5  0xffffffff810a7d2c in trap_fatal (frame=3D0xfffffe000047f750, eva=3D1)
    at /usr/src/sys/amd64/amd64/trap.c:943
#6  0xffffffff810a7d79 in trap_pfault (frame=3D0xfffffe000047f750, usermode=
=3D0)
    at /usr/src/sys/amd64/amd64/trap.c:767
#7  0xffffffff810a736f in trap (frame=3D0xfffffe000047f750)
    at /usr/src/sys/amd64/amd64/trap.c:443
#8  <signal handler called>
#9  0xffffffff837a690f in ?? ()
#10 0xffffffff81a01004 in hc_source_mask ()
#11 0x0000000100000001 in ?? ()
#12 0x0000000000000000 in ?? ()
(kgdb)

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