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SubjectRe: BUG: All network processes hang (brcmsmac/wpa_supplicant)
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Le mercredi 19 octobre 2011 à 14:58 +0200, Arend van Spriel a écrit :
> On 10/19/2011 02:49 PM, Eric Dumazet wrote:
> > Le mercredi 19 octobre 2011 à 14:36 +0200, Nico Schottelius a écrit :
> >> Hello,
> >>
> >> I've
> >>
> >> Eric Dumazet [Tue, Oct 18, 2011 at 02:24:25PM +0200]:
> >>> Must be a mutex_unlock(some_mltex) missing somewhere.
> >>>
> >>> Then later, a process holding RTNL is blocking on mutex_lock(some_mutex)
> >>>
> >>> Try a "CONFIG_LOCKDEP=y" enabled build
> >>
> >> Did so, attached is the dmesg output after 3x suspend.
> >>
> >> It also seems this bug gets more / only triggered when I loose the
> >> connection to a wpa2-eap network that is defined like this:
> >>
> >> network={
> >> ssid="eth"
> >> id_str="eth-802.2x"
> >> key_mgmt=WPA-EAP
> >> proto=WPA2
> >> eap=TTLS
> >> pairwise=CCMP TKIP
> >> group=CCMP TKIP
> >> phase2="auth=MSCHAPV2"
> >> identity="MYNAME"
> >> password="forgottoremoveit"
> >> }
> >>
> >> Hope the dmesg output helps and we can remove the problem soon
> >> and making the mba finally almost completly usable :-)
> >>
> >
> > Sorry, no CONFIG_LOCKDEP in your config or dmesg. Maybe you sent a
> > previous dmesg/config file ?
> >
> > Note that you have "CONFIG_LOCKDEP_SUPPORT=y", not "CONFIG_LOCKDEP=y"
> >
>
> Hi Eric,
>
> Are there any configuration setting needed that CONFIG_LOCKDEP depends on?



config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE
select KALLSYMS
select KALLSYMS_ALL

make menuconfig
-> Kernel hacking
-> Lock debugging: prove locking correctness



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