Hang in fb_notifier_call_chain with nvidia framebuffer

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Arjan van de Ven wrote:

please please remove "quiet"... that removes any kind of useful debug
output! It also makes you point at the wrong party for blaming hangs
on ;)



Arjan,

Attached in the zip file is:

log-hang1.txt	-> log showing hang
cfg-hang1	-> config file for hang condition
cfg-ok		-> config file that works
fbmem.c		-> Modifications to register_framebuffer

To possibly assist I turned on debugging in nvidia.c and found that it hung in the call to register_framebuffer. I then added some additional debug in that routine and it appears the hang occurs in the call to fb_notifier_call_chain.

Please let me know what else maybe needed.

Cheers,

Wink

My hardware is a Asus P5W DH Deluxe with Intel Core 2 Duo, Intel 975X/ICH7R chip set & e-GeForce nvidia 7600 GT KO video card with 2GB of ram.

Other info when using config-ok:

wink@winkc2d1:~$ uname -a
Linux winkc2d1 2.6.18-w6 #7 SMP Wed Oct 4 09:13:10 PDT 2006 x86_64 GNU/Linux
wink@winkc2d1:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz
stepping        : 6
cpu MHz         : 2404.168
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 4811.86
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz
stepping        : 6
cpu MHz         : 2404.168
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 6934.66
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

wink@winkc2d1:~$ cat /proc/meminfo
MemTotal:      2058588 kB
MemFree:       1935192 kB
Buffers:          3496 kB
Cached:          53176 kB
SwapCached:          0 kB
Active:          52032 kB
Inactive:        36804 kB
SwapTotal:           0 kB
SwapFree:            0 kB
Dirty:            1544 kB
Writeback:           0 kB
AnonPages:       32240 kB
Mapped:          14568 kB
Slab:            16012 kB
SReclaimable:     7432 kB
SUnreclaim:       8580 kB
PageTables:       2000 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   1029292 kB
Committed_AS:    54388 kB
VmallocTotal: 34359738367 kB
VmallocUsed:      6180 kB
VmallocChunk: 34359732163 kB

Attachment: nvidiafb-hang1.zip
Description: Zip compressed data


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