I think the w1 kernel module has been broken for a while. Not just our
code, but the module itself.
Paul Alfille
DS2483 should work, at least on x86 platforms.
On Wed, Jan 9, 2013 at 2:52 PM, Sven Geggus <[email protected]>wrote:
> Sven Geggus <[email protected]> wrote:
>
> > ... and hard freezes the system afterwords.
>
> By connecting a serial cable I was able to capture the following:
>
> [ 124.782340] Unable to handle kernel paging request at virtual address
> fffffff8
> [ 124.794879] pgd = cab8c000
> [ 124.799807] [fffffff8] *pgd=0bffe821, *pte=00000000, *ppte=00000000
> [ 124.809255] Internal error: Oops: 17 [#1] PREEMPT
>
> Entering kdb (current=0xcab3c2a0, pid 2043) Oops: (null)
> due to oops @ 0xc0042d70
>
> Pid: 2043, comm: owserver
> CPU: 0 Not tainted (3.2.27+ #160)
> PC is at kthread_should_stop+0x14/0x1c
> LR is at w1_search+0x80/0x144 [wire]
> pc : [<c0042d70>] lr : [<bf0cf12c>] psr: 20000013
> sp : cab71cb8 ip : ffffffe0 fp : 00000040
> r10: ffffffff r9 : cba43400 r8 : 00000000
> r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : 00000000
> r3 : 00000000 r2 : cab71cb8 r1 : 00000020 r0 : 00000002
> Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
> Control: 00c5387d Table: 0ab8c008 DAC: 00000015
> [<c0013e1c>] (unwind_backtrace+0x0/0xf0) from [<c0377b28>]
> (kdb_dumpregs+0x28/0x50)
> [<c0377b28>] (kdb_dumpregs+0x28/0x50) from [<c0071a04>]
> (kdb_main_loop+0x504/0x758)
> [<c0071a04>] (kdb_main_loop+0x504/0x758) from [<c0073fd0>]
> (kdb_stub+0x13c/0x368)
> [<c0073fd0>] (kdb_stub+0x13c/0x368) from [<c006afd4>]
> (kgdb_handle_exception+0x1fc/0x69c)
> [<c006afd4>] (kgdb_handle_exception+0x1fc/0x69c) from [<c001359c>]
> (kgdb_notify+0x24/0x40)
> [<c001359c>] (kgdb_notify+0x24/0x40) from [<c037e700>]
> (notifier_call_chain+0x44/0x84)
> [<c037e700>] (notifier_call_chain+0x44/0x84) from [<c037e778>]
> (__atomic_notifier_call_chain+0x38/0x4c)
> [<c037e778>] (__atomic_notifier_call_chain+0x38/0x4c) from
> [<c037e7a4>] (atomic_notifier_call_chain+0x18/0x20)
> [<c037e7a4>] (atomic_notifier_call_chain+0x18/0x20) from [<c037e7e4>]
> (notify_die+0x38/0x44)
>
> So still looking for the right place to report this.
>
> Regards
>
> Sven
>
> --
> "Dynamische IP-Nummern sind Security-Homöopathie."
> (Kristian Köhntopp)
>
> /me is giggls@ircnet, http://sven.gegg.us/ on the Web
>
>
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