PNP depends on ISA ? (2.6.2-rc2
I was wondering why pnp depends on isa being selected in 2.6.2-rc2, is pnp really only relevant to isa? What happens with pci etc. ?
This may explain why using pnpbios locks up my machine (at least as of 2.6.0-test9).
Quoted 3 lines · Micha Feigin
I was wondering why pnp depends on isa being selected in 2.6.2-rc2, is pnp really only relevant to isa? What happens with pci etc. ?
This may explain why using pnpbios locks up my machine (at least as of 2.6.0-test9).
Yes, it only is related to isa devices, but they include onboard devices such as serial ports. It will, however, prevent resource conflicts between pci and system devices, especially with unusual configurations. Does using pnpbios cause your machine to lockup at boot? If so, around where does it occur? DMI information would also be useful for blacklisting purposes.
Thanks,
Adam
Quoted 4 lines · Adam Belay
Quoted 1 line · Micha Feigin
I was wondering why pnp depends on isa being selected in 2.6.2-rc2,
Yes, it only is related to isa devices, but they include onboard
I the 2.4.x kernel I seem to remember being able to cat /proc/isapnp and getting info about pnp devices on my system. Is there an equivalent in 2.6.x ?
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David Sanders
[email protected]
Quoted 8 lines · David Sanders
Quoted 4 lines · Adam Belay
Quoted 1 line · Micha Feigin
I was wondering why pnp depends on isa being selected in 2.6.2-rc2,
Yes, it only is related to isa devices, but they include onboard
I the 2.4.x kernel I seem to remember being able to cat
/proc/isapnpand getting info about pnp devices on my system. Is there an equivalent in 2.6.x ?
Yes. A complete interface, including id information and control over resource management is provided through sysfs.
#mkdir /sys
#mount -t sysfs none /sys
Look in /sys/bus/pnp for more information.
Thanks,
Adam
Quoted 5 lines · Adam Belay
Quoted 3 lines · Micha Feigin
I was wondering why pnp depends on isa being selected in 2.6.2-rc2, is pnp really only relevant to isa? What happens with pci etc. ?
This may explain why using pnpbios locks up my machine (at least as of 2.6.0-test9).
Quoted 7 lines
Yes, it only is related to isa devices, but they include onboard devices such as serial ports. It will, however, prevent resource conflicts between pci and system devices, especially with unusual configurations. Does using pnpbios cause your machine to lockup at boot? If so, around where does it occur? DMI information would also be useful for blacklisting purposes.
I just checked again with 2.6.2-rc2. It occurs right after pnpbios starts up. I wrote the oops down by hand since the computer went into a hard lockup (no sysrq key), but couldn't get any results out of ksymoops for some reason (maybe I am misusing it, any way to disable pnpbios on a kernel compiled with so I can run it from the running kernel?).
I attached the oops log and the dmi data (didn't know what is needed of it).
Quoted 3 lines
Thanks,
Adam
pnpbios: scanning system for pnpbios support ...
pnpbios: found pnp bios instellation structure at 0xc00f7760
pnpbios: pnp bios version 1.0, entry 0xf0000:0xaad2, dseg 0x400
general protection fault: 0000 [#1]
cpu: 0
eip: 0098:[<00003fb8>] not tainted
eflags: 00010082
eip is at 3fb8
[...]
process swapper (pid: 1, threadinfo=cffa8000 task=cffa38c0)
stack: 00001002 0002000f 556a0000 8d350000 541c0000 8d2fc65c c64d0c40 0000005a
9e829e96 00008d2e 020b000f 0000bade 9231cc70 cc70c520 003fcbad 00010000
67df0000 0007c020 02120000 1f0e0000 50000000 0000c129 ff380000 0246c037call trace:
code: bad eip value
<0> kernel panic: attempted to kill init!
Quoted 14 lines · Micha Feigin
Quoted 5 lines · Adam Belay
Quoted 3 lines · Micha Feigin
I was wondering why pnp depends on isa being selected in 2.6.2-rc2, is pnp really only relevant to isa? What happens with pci etc. ?
This may explain why using pnpbios locks up my machine (at least as of 2.6.0-test9).Quoted 7 lines
Yes, it only is related to isa devices, but they include onboard devices such as serial ports. It will, however, prevent resource conflicts between pci and system devices, especially with unusual configurations. Does using pnpbios cause your machine to lockup at boot? If so, around where does it occur? DMI information would also be useful for blacklisting purposes.
Quoted 6 lines
I just checked again with 2.6.2-rc2. It occurs right after pnpbios starts up. I wrote the oops down by hand since the computer went into a hard lockup (no sysrq key), but couldn't get any results out of ksymoops for some reason (maybe I am misusing it, any way to disable pnpbios on a kernel compiled with so I can run it from the running kernel?).
the kernel parameter pnpbios=off should work.
Quoted 2 lines
I attached the oops log and the dmi data (didn't know what is needed of it).
I appreciate the information will add this to the blacklist.
Thanks,
Adam