Date: Wed, 13 Nov 2019 06:52:04 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Hans Petter Selasky <hps@selasky.org> Cc: Mark Johnston <markj@freebsd.org>, freebsd-current@freebsd.org, freebsd-x11@freebsd.org Subject: Re: unkillable process consuming 100% cpu Message-ID: <20191113145204.GA3650@troutmask.apl.washington.edu> In-Reply-To: <1de2773b-3f54-472b-65a1-0f1c297aab60@selasky.org> References: <20191107202919.GA4565@troutmask.apl.washington.edu> <20191107203223.GF16978@raichu> <20191108220935.GA856@troutmask.apl.washington.edu> <6a4e5993-623a-ebaa-8180-e11c7d48e706@selasky.org> <20191112173136.GA69344@troutmask.apl.washington.edu> <0961307a-8b14-8240-0466-6bb4edf52788@selasky.org> <20191113003001.GA94074@troutmask.apl.washington.edu> <1de2773b-3f54-472b-65a1-0f1c297aab60@selasky.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Nov 13, 2019 at 09:10:06AM +0100, Hans Petter Selasky wrote:
> On 2019-11-13 01:30, Steve Kargl wrote:
> >
> > I installed the 2nd seqlock.diff, rebuilt drm-current-kmod-4.16.g20191023,
> > rebooting, and have been pounding on the system with workloads that are
> > similar to what the system was doing during the lockups. So far, I
> > cannot ge the system lock-up. Looks like your patch fixes (or at
> > least helps). Thanks for taking a look at the problem.
> >
>
> Can you apply the kdb.diff on top and check dmesg for prints?
>
I could not find the amdgpu_amdkfd_gpuvm.c file when I went looking.
Is it autogenerated?
I also spoke too soon. I got a panic after my reply above.
Fatal trap 12: page fault while in kernel mode
cpuid = 5; apic id = 15
fault virtual address = 0x0
fault code = supervisor read instruction, page not present
instruction pointer = 0x20:0x0
stack pointer = 0x28:0xfffffe00b460e188
frame pointer = 0x28:0xfffffe00b460e1c0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 877 (X:rcs0)
trap number = 12
panic: page fault
cpuid = 5
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00b460dde0
vpanic() at vpanic+0x17e/frame 0xfffffe00b460de40
panic() at panic+0x43/frame 0xfffffe00b460dea0
trap_fatal() at trap_fatal+0x388/frame 0xfffffe00b460df10
trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00b460df80
trap() at trap+0x288/frame 0xfffffe00b460e0b0
calltrap() at calltrap+0x8/frame 0xfffffe00b460e0b0
--- trap 0xc, rip = 0, rsp = 0xfffffe00b460e188, rbp = 0xfffffe00b460e1c0 ---
??() at 0/frame 0xfffffe00b460e1c0
radeon_cs_ioctl() at radeon_cs_ioctl+0xa0b/frame 0xfffffe00b460e640
drm_ioctl_kernel() at drm_ioctl_kernel+0xf1/frame 0xfffffe00b460e680
drm_ioctl() at drm_ioctl+0x279/frame 0xfffffe00b460e770
linux_file_ioctl() at linux_file_ioctl+0x298/frame 0xfffffe00b460e7d0
kern_ioctl() at kern_ioctl+0x284/frame 0xfffffe00b460e840
sys_ioctl() at sys_ioctl+0x157/frame 0xfffffe00b460e910
amd64_syscall() at amd64_syscall+0x273/frame 0xfffffe00b460ea30
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00b460ea30
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x200cc6bfa, rsp = 0x7fffbfffde98, rbp = 0x7fffbfffdec0 ---
Uptime: 5h9m5s
Dumping 1472 out of 16327 MB:..2%..11%..21%..31%..41%..52%..61%..71%..81%..91%
__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
warning: Source file is more recent than executable.
55 __asm("movq %%gs:%P1,%0" : "=r" (td) : "n" (offsetof(struct pcpu,
(kgdb) #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
#1 doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:392
#2 0xffffffff805de452 in kern_reboot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:479
#3 0xffffffff805de8a6 in vpanic (fmt=<optimized out>, ap=<optimized out>)
at /usr/src/sys/kern/kern_shutdown.c:908
#4 0xffffffff805de6c3 in panic (fmt=<unavailable>)
at /usr/src/sys/kern/kern_shutdown.c:835
#5 0xffffffff808b0d58 in trap_fatal (frame=0xfffffe00b460e0c0, eva=0)
at /usr/src/sys/amd64/amd64/trap.c:925
#6 0xffffffff808b0daf in trap_pfault (frame=0xfffffe00b460e0c0,
usermode=<optimized out>, signo=<optimized out>, ucode=<optimized out>)
at /usr/src/sys/amd64/amd64/trap.c:743
#7 0xffffffff808b0468 in trap (frame=0xfffffe00b460e0c0)
at /usr/src/sys/amd64/amd64/trap.c:407
#8 <signal handler called>
#9 0x0000000000000000 in ?? ()
#10 0xffffffff817d2c0f in radeon_ttm_tt_to_gtt (ttm=0xfffff80061eeb248)
at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_ttm.c:720
#11 radeon_ttm_tt_set_userptr (ttm=0xfffff80061eeb248, addr=1,
flags=2147483647)
at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_ttm.c:804
#12 0xffffffff817adc9b in radeon_is_px (dev=0xfffff8017fe84e00)
at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/radeon/radeon_device.c:156
#13 0xffffffff818a9e81 in drm_ioctl_kernel (linux_file=<optimized out>,
func=0xfffffe00b460e428, kdata=0xfffffe00b31eb000, flags=1521620552)
at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/drm_ioctl.c:760
#14 0xffffffff818aa129 in drm_ioctl (filp=0xfffff80061198e00,
cmd=<optimized out>, arg=65536)
at /usr/local/sys/modules/drm-current-kmod/drivers/gpu/drm/drm_ioctl.c:856
#15 0xffffffff807c8098 in linux_file_ioctl_sub (fp=<optimized out>,
filp=<optimized out>, fop=<optimized out>, cmd=<optimized out>,
data=<optimized out>, td=<optimized out>)
at /usr/src/sys/compat/linuxkpi/common/src/linux_compat.c:965
#16 linux_file_ioctl (fp=<optimized out>, cmd=<optimized out>,
data=<optimized out>, cred=<optimized out>, td=0xfffff800612c0000)
at /usr/src/sys/compat/linuxkpi/common/src/linux_compat.c:1558
#17 0xffffffff8063ed34 in fo_ioctl (fp=<optimized out>, com=3223348326,
data=0x7fffffff, active_cred=0xfffffe001f7e6250, td=0xfffff800612c0000)
at /usr/src/sys/sys/file.h:340
#18 kern_ioctl (td=<optimized out>, fd=9, com=3223348326,
data=0x7fffffff <error: Cannot access memory at address 0x7fffffff>)
at /usr/src/sys/kern/sys_generic.c:801
#19 0xffffffff8063ea37 in sys_ioctl (td=0xfffff800612c0000,
uap=0xfffff800612c03c8) at /usr/src/sys/kern/sys_generic.c:709
#20 0xffffffff808b1783 in syscallenter (td=0xfffff800612c0000)
at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:144
#21 amd64_syscall (td=0xfffff800612c0000, traced=0)
at /usr/src/sys/amd64/amd64/trap.c:1162
#22 <signal handler called>
--
Steve
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20191113145204.GA3650>