From: Kalle Valo <kvalo@codeaurora.org>
To: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>,
Franky Lin <franky.lin@broadcom.com>,
Hante Meuleman <hante.meuleman@broadcom.com>,
Chi-Hsien Lin <chi-hsien.lin@cypress.com>,
Wright Feng <wright.feng@cypress.com>,
"David S. Miller" <davem@davemloft.net>,
Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>,
Ian Molton <ian@mnementh.co.uk>,
linux-wireless@vger.kernel.org,
brcm80211-dev-list.pdl@broadcom.com,
brcm80211-dev-list@cypress.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2] brcmfmac: stop watchdog before detach and free everything
Date: Tue, 19 Jun 2018 22:06:43 +0300 [thread overview]
Message-ID: <87fu1izjcs.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <5B294920.5050909@broadcom.com> (Arend van Spriel's message of "Tue, 19 Jun 2018 20:19:12 +0200")
Arend van Spriel <arend.vanspriel@broadcom.com> writes:
> On 5/30/2018 11:06 AM, Michael Trimarchi wrote:
>> Using built-in in kernel image without a firmware in filesystem
>> or in the kernel image can lead to a kernel NULL pointer deference.
>> Watchdog need to be stopped in brcmf_sdio_remove
>>
>> The system is going down NOW!
>> [ 1348.110759] Unable to handle kernel NULL pointer dereference at
>> virtual address 000002f8
>> Sent SIGTERM to all processes
>> [ 1348.121412] Mem abort info:
>> [ 1348.126962] ESR = 0x96000004
>> [ 1348.130023] Exception class = DABT (current EL), IL = 32 bits
>> [ 1348.135948] SET = 0, FnV = 0
>> [ 1348.138997] EA = 0, S1PTW = 0
>> [ 1348.142154] Data abort info:
>> [ 1348.145045] ISV = 0, ISS = 0x00000004
>> [ 1348.148884] CM = 0, WnR = 0
>> [ 1348.151861] user pgtable: 4k pages, 48-bit VAs, pgdp = (____ptrval____)
>> [ 1348.158475] [00000000000002f8] pgd=0000000000000000
>> [ 1348.163364] Internal error: Oops: 96000004 [#1] PREEMPT SMP
>> [ 1348.168927] Modules linked in: ipv6
>> [ 1348.172421] CPU: 3 PID: 1421 Comm: brcmf_wdog/mmc0 Not tainted
>> 4.17.0-rc5-next-20180517 #18
>> [ 1348.180757] Hardware name: Amarula A64-Relic (DT)
>> [ 1348.185455] pstate: 60000005 (nZCv daif -PAN -UAO)
>> [ 1348.190251] pc : brcmf_sdiod_freezer_count+0x0/0x20
>> [ 1348.195124] lr : brcmf_sdio_watchdog_thread+0x64/0x290
>> [ 1348.200253] sp : ffff00000b85be30
>> [ 1348.203561] x29: ffff00000b85be30 x28: 0000000000000000
>> [ 1348.208868] x27: ffff00000b6cb918 x26: ffff80003b990638
>> [ 1348.214176] x25: ffff0000087b1a20 x24: ffff80003b94f800
>> [ 1348.219483] x23: ffff000008e620c8 x22: ffff000008f0b660
>> [ 1348.224790] x21: ffff000008c6a858 x20: 00000000fffffe00
>> [ 1348.230097] x19: ffff80003b94f800 x18: 0000000000000001
>> [ 1348.235404] x17: 0000ffffab2e8a74 x16: ffff0000080d7de8
>> [ 1348.240711] x15: 0000000000000000 x14: 0000000000000400
>> [ 1348.246018] x13: 0000000000000400 x12: 0000000000000001
>> [ 1348.251324] x11: 00000000000002c4 x10: 0000000000000a10
>> [ 1348.256631] x9 : ffff00000b85bc40 x8 : ffff80003be11870
>> [ 1348.261937] x7 : ffff80003dfc7308 x6 : 000000078ff08b55
>> [ 1348.267243] x5 : 00000139e1058400 x4 : 0000000000000000
>> [ 1348.272550] x3 : dead000000000100 x2 : 958f2788d6618100
>> [ 1348.277856] x1 : 00000000fffffe00 x0 : 0000000000000000
>
> Forgot about this one.
>
> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Should this go to 4.18?
--
Kalle Valo
next prev parent reply other threads:[~2018-06-19 19:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-28 7:50 [PATCH] brcmfmac: stop watchdog before detach and free everything Michael Trimarchi
2018-05-28 9:51 ` Arend van Spriel
2018-05-28 9:54 ` Michael Nazzareno Trimarchi
2018-05-28 15:25 ` Andy Shevchenko
2018-05-28 15:29 ` Michael Nazzareno Trimarchi
2018-05-28 15:33 ` Michael Nazzareno Trimarchi
2018-05-29 9:22 ` Arend van Spriel
2018-05-29 9:25 ` Arend van Spriel
2018-05-30 9:06 ` [PATCH V2] " Michael Trimarchi
2018-06-19 18:19 ` Arend van Spriel
2018-06-19 19:06 ` Kalle Valo [this message]
2018-06-19 19:27 ` Arend van Spriel
2018-06-19 19:37 ` Andy Shevchenko
2018-06-20 13:15 ` Andy Shevchenko
2018-06-24 16:58 ` [V2] " Kalle Valo
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