Re: nvidia-driver crashing kernel on head

On Fri, Jul 02, 2010 at 02:57:35PM +0200, René Ladan wrote:
> 2010/7/2 Yuri Pankov <yuri.pankov_at_gmail.com>:
> > On Fri, Jul 02, 2010 at 11:46:41AM +0200, David Naylor wrote:
> >> Hi,
> >>
> >> I'm not sure this has been reported before but I am experience crashes with
> >> nvidia-driver on -current (cvsup ~day ago).
> >>
> >> If I remove all the debugging options from the kernel config then it is very
> >> usable.
> >>
> >> Here are the backtraces from two nvidia-driver versions:
> >>
> >> nvidia-driver-195.36.15 and GENERIC:
> >> panic: mutex page lock not owned at /home/freebsd9/src/sys/vm/vm_page.c:1638
> >> cpuid = 1
> >> KDB: enter: panic
> >> [ thread pid 1815 tid 100097 ]
> >> Stopped at      kdb_enter+0x3d: movq    $0,0x6bc27c(%rip)
> >> db> bt
> >> Tracing pid 1815 tid 100097 td 0xffffff00045af000
> >> kdb_enter() at kdb_enter+0x3d
> >> panic() at panic+0x176
> >> assert_mtx() at assert_mtx
> >> vm_page_wire() at vm_page_wire+0x37
> >> nv_alloc_system_pages() at nv_alloc_system_pages+0x217
> >> nv_alloc_pages() at nv_alloc_pages+0xcd
> >> _nv019978rm() at _nv019978rm+0x7f
> >>
> >> nvidia-driver-256.35 and custom kernel:
> >> panic: blockable sleep lock (sleep mutex) select mtxpool _at_
> >> /home/freebsd9/src/sys/kern/sys_generic.c:1479
> >> cpuid = 1
> >> KDB: enter: panic
> >> [ thread pid 1830 tid 100090 ]
> >> Stopped at      kdb_enter+0x3d: movq    $0,0x51368c(%rip)
> >> db> bt
> >> Tracing pid 1830 tid 100090 td 0xffffff000456d3d0
> >> kdb_enter() at kdb_enter+0x3d
> >> panic() at panic+0x176
> >> witness_checkorder() at witness_checkorder+0x913
> >> _mtx_lock_flags() at _mtx_lock_flags+0x68
> >> selrecord() at selrecord+0x71
> >> nvidia_dev_poll() at nvidia_dev_poll+0x52
> >> devfs_poll_f() at devfs_poll_f+0x55
> >> kern_select() at kern_select+0x501
> >> select() at select+0x54
> >> syscallenter() at syscallenter+0x19b
> >> syscall() at syscall+0x41
> >> Xfast_syscall() at Xfast_syscall+0xe2
> >> --- syscall (93, FreeBSD ELF64, select), rip = 0x801a17ddc, rsp = 0x7fffffffe908,
> >> rbp = 0x100 ---
> >>
> >> Also of note is:
> >> # grep '^C.*FLAGS' /etc/make.conf
> >> CFLAGS+= -DNDEBUG
> >>
> >> As mentioned that without any debugging options the system is stable.
> >>
> >> Is there anything I can do to assist diagnosis?
> >>
> >> Regards,
> >>
> >> David
> >
> > http://lists.freebsd.org/pipermail/freebsd-current/2010-June/017936.html
> > helps here, check the thread as well.
> >
> > You could also try to use 256.35 driver.
> >
> The 256.35 driver works for me (without the above-referred patch), but anywhere
> between 1 and 48 hours my laptop locks up hard without any warning nor panic.
> This is with CURRENT r209581, GENERIC kernel, but with debug.witness.watch=0
> If I set debug.witness.watch to 1, the kernel freezes when starting X.
> 
> The nv driver seems to run nice, but without xv/DRI though.
> 
> Regards,
> Rene

Sorry, David, totally missed 256.35 part...

René, try using ddb_enable="YES" in rc.conf, I can get backtrace with
ddb at least:
http://www.nvnews.net/vbulletin/showpost.php?p=2275877&postcount=6


Yuri