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Date: Tue, 26 Oct 2010 11:35:03 +0530
Message-ID: <AANLkTimr60fQWy0EarGm-8yRHKLkEEh50H7oUXiODQ-0@mail.gmail.com>
Subject: Re: ath9k crashing the kernel
From: Mohammed Shafi <shafi.wireless@gmail.com>
To: Jaswinder Singh <jaswinderlinux@gmail.com>
Cc: linux-wireless@vger.kernel.org
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On Tue, Oct 26, 2010 at 11:04 AM, Mohammed Shafi
<shafi.wireless@gmail.com> wrote:
> On Tue, Oct 26, 2010 at 10:36 AM, Jaswinder Singh
> <jaswinderlinux@gmail.com> wrote:
>> Hello,
>>
>> ath9k is crashing the kernel :
>>
>> [ ? 21.276554] BUG: spinlock bad magic on CPU#1, NetworkManager/1056
>> [ ? 21.277015] ?lock: f5be80a8, .magic: 00000000, .owner: <none>/-1,
>> .owner_cpu: 0
>> [ ? 21.277015] Pid: 1056, comm: NetworkManager Not tainted 2.6.36-netbook+ #20
>> [ ? 21.277015] Call Trace:
>> [ ? 21.277015] ?[<c14767a7>] ? printk+0xf/0x11
>> [ ? 21.277015] ?[<c117b823>] spin_bug+0x7c/0x87
>> [ ? 21.301365] ?[<c117b8bd>] do_raw_spin_lock+0x1e/0x125
>> [ ? 21.301365] ?[<c1478d0a>] ? _raw_spin_unlock_bh+0x1a/0x1c
>> [ ? 21.301365] ?[<c1478dc3>] _raw_spin_lock_irqsave+0x17/0x1c
>> [ ? 21.318857] ?[<c1288a74>] ath9k_config+0x255/0x38b
>> [ ? 21.318857] ?[<c1447bdb>] ieee80211_hw_config+0x10a/0x114
>> [ ? 21.328034] ?[<c1453545>] ieee80211_do_open+0x3de/0x4cf
>> [ ? 21.328034] ?[<c1452206>] ? ieee80211_check_concurrent_iface+0x21/0x13a
>> [ ? 21.328034] ?[<c104c470>] ? raw_notifier_call_chain+0xc/0xe
>> [ ? 21.328034] ?[<c1453691>] ieee80211_open+0x5b/0x5e
>> [ ? 21.328034] ?[<c13947cf>] __dev_open+0x80/0xa9
>> [ ? 21.328034] ?[<c13920bb>] __dev_change_flags+0xa1/0x116
>> [ ? 21.328034] ?[<c1394723>] dev_change_flags+0x13/0x3f
>> [ ? 21.328034] ?[<c139d568>] do_setlink+0x226/0x507
>> [ ? 21.328034] ?[<c139d917>] rtnl_setlink+0xce/0xd4
>> [ ? 21.328034] ?[<c11786d2>] ? copy_to_user+0x3a/0x118
>> [ ? 21.328034] ?[<c139d849>] ? rtnl_setlink+0x0/0xd4
>> [ ? 21.328034] ?[<c139df4d>] rtnetlink_rcv_msg+0x17e/0x194
>> [ ? 21.328034] ?[<c139ddcf>] ? rtnetlink_rcv_msg+0x0/0x194
>> [ ? 21.328034] ?[<c13a59c4>] netlink_rcv_skb+0x30/0x76
>> [ ? 21.328034] ?[<c139ddc8>] rtnetlink_rcv+0x1b/0x22
>> [ ? 21.328034] ?[<c13a5772>] netlink_unicast+0x1aa/0x20b
>> [ ? 21.328034] ?[<c13a5eac>] netlink_sendmsg+0x22c/0x27a
>> [ ? 21.328034] ?[<c13862b8>] sock_sendmsg+0xa5/0xbb
>> [ ? 21.328034] ?[<c13862b8>] ? sock_sendmsg+0xa5/0xbb
>> [ ? 21.328034] ?[<c138e05b>] ? verify_iovec+0x3e/0x6b
>> [ ? 21.328034] ?[<c1386ab2>] sys_sendmsg+0x149/0x196
>> [ ? 21.328034] ?[<c10826f5>] ? unlock_page+0x40/0x43
>> [ ? 21.328034] ?[<c10952d5>] ? __do_fault+0x367/0x393
>> [ ? 21.328034] ?[<c1096b8e>] ? handle_mm_fault+0x3bd/0x77a
>> [ ? 21.328034] ?[<c10b6fb3>] ? destroy_inode+0x1f/0x30
>> [ ? 21.328034] ?[<c138694e>] ? sys_recvmsg+0x2b/0x46
>> [ ? 21.328034] ?[<c1387c00>] sys_socketcall+0x146/0x18b
>> [ ? 21.328034] ?[<c1002850>] sysenter_do_call+0x12/0x26
>> [ ? 21.344846] ADDRCONF(NETDEV_UP): wlan0: link is not ready
>> [ ? 21.487994] atl1c 0000:03:00.0: irq 42 for MSI/MSI-X
>> [ ? 21.543870] ADDRCONF(NETDEV_UP): eth0: link is not ready
>>
>>
>> Linux 2.6.36 f6f94e2ab1 is good
>> and
>> 229aebb873e2972 is bad
>>
>> I am trying to bisect it but I am getting compilation error :
>>
>> ?LD ? ? ?.tmp_vmlinux1
>> drivers/built-in.o: In function `ath_do_set_opmode':
>> /home/jaswinder/jaswinder-git/linux-2.6/drivers/net/wireless/ath/ath5k/base.c:567:
>> undefined reference to `ath_opmode_to_string'
>> /home/jaswinder/jaswinder-git/linux-2.6/drivers/net/wireless/ath/ath5k/base.c:568:
>> undefined reference to `ath_opmode_to_string'
>> make: *** [.tmp_vmlinux1] Error 1
>> [jaswinder@ linux-2.6]$
>>
>> Thanks,
>> --
>> Jaswinder Singh.
>> --
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>>
> Hi Jaswinder,
> ? ? ? ? ? ? ? ?Could you please give some more detailed information
> regarding this like the card you are using and the scenario under
> which the ath9k is crashing.
> thanks,
> shafi
>