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Message-ID: <db57f885-1c04-c050-7352-872562b72422@microchip.com>
Date: Fri, 23 Apr 2021 04:38:02 +0000
From: <Tudor.Ambarus@...rochip.com>
To: <guillaume.tucker@...labora.com>, <sboyd@...nel.org>,
<saravanak@...gle.com>, <gregkh@...uxfoundation.org>,
<kernelci-results@...ups.io>
CC: <linux-clk@...r.kernel.org>, <mturquette@...libre.com>,
<linux-kernel@...r.kernel.org>
Subject: Re: next/master bisection: baseline.dmesg.alert on bcm2837-rpi-3-b
On 4/23/21 12:33 AM, Guillaume Tucker wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Hi Tudor,
Hi, Guillaume,
>
> Please see the bisection report below about a NULL pointer
> dereference on RPi-3B with 64K pages.
>
> Reports aren't automatically sent to the public while we're
> trialing new bisection features on kernelci.org but this one
> looks valid.
>
Thanks, few other people reported it. There are some suggestions in
the thread of the patch and I thought they are materialized in a fixing
patch already.
Stephen, do you know if there's already a patch addressing this? I wasn't
Cc-ed. Do you want me to scratch a patch with one of the proposed methods?
I'll skim through the linux-clk patchwork.
Cheers,
ta
> This is the kernel error message in the full boot log:
>
> https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_ARM64_64K_PAGES=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html#L336
>
> More details can be found here:
>
> https://linux.kernelci.org/test/case/id/60801a28ecf57fef7d9b77af/
>
>
> Please let us know if you need any help to debug this issue or
> try a fix.
>
> Best wishes,
> Guillaume
>
>
> On 21/04/2021 22:40, KernelCI bot wrote:
>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>> * This automated bisection report was sent to you on the basis *
>> * that you may be involved with the breaking commit it has *
>> * found. No manual investigation has been done to verify it, *
>> * and the root cause of the problem may be somewhere else. *
>> * *
>> * If you do send a fix, please include this trailer: *
>> * Reported-by: "kernelci.org bot" <bot@...nelci.org> *
>> * *
>> * Hope this helps! *
>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>
>> next/master bisection: baseline.dmesg.alert on bcm2837-rpi-3-b
>>
>> Summary:
>> Start: b74523885a71 Add linux-next specific files for 20210421
>> Plain log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.txt
>> HTML log: https://storage.kernelci.org/next/master/next-20210421/arm64/defconfig+CONFIG_RANDOMIZE_BASE=y/gcc-8/lab-baylibre/baseline-bcm2837-rpi-3-b.html
>> Result: 6579c8d97ad7 clk: Mark fwnodes when their clock provider is added
>>
>> Checks:
>> revert: PASS
>> verify: PASS
>>
>> Parameters:
>> Tree: next
>> URL: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>> Branch: master
>> Target: bcm2837-rpi-3-b
>> CPU arch: arm64
>> Lab: lab-baylibre
>> Compiler: gcc-8
>> Config: defconfig+CONFIG_RANDOMIZE_BASE=y
>> Test case: baseline.dmesg.alert
>>
>> Breaking commit found:
>>
>> -------------------------------------------------------------------------------
>> commit 6579c8d97ad7fc5671ee60234f3b8388abee5f77
>> Author: Tudor Ambarus <tudor.ambarus@...rochip.com>
>> Date: Wed Feb 10 13:44:35 2021 +0200
>>
>> clk: Mark fwnodes when their clock provider is added
>>
>> This is a follow-up for:
>> commit 3c9ea42802a1 ("clk: Mark fwnodes when their clock provider is added/removed")
>>
>> The above commit updated the deprecated of_clk_add_provider(),
>> but missed to update the preferred of_clk_add_hw_provider().
>> Update it now.
>>
>> Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
>> Acked-by: Stephen Boyd <sboyd@...nel.org>
>> Reviewed-by: Saravana Kannan <saravanak@...gle.com>
>> Link: https://lore.kernel.org/r/20210210114435.122242-2-tudor.ambarus@microchip.com
>> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>>
>> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
>> index 5052541a0986..60e12e0c036a 100644
>> --- a/drivers/clk/clk.c
>> +++ b/drivers/clk/clk.c
>> @@ -4615,6 +4615,8 @@ int of_clk_add_hw_provider(struct device_node *np,
>> if (ret < 0)
>> of_clk_del_provider(np);
>>
>> + fwnode_dev_initialized(&np->fwnode, true);
>> +
>> return ret;
>> }
>> EXPORT_SYMBOL_GPL(of_clk_add_hw_provider);
>> -------------------------------------------------------------------------------
>>
>>
>> Git bisection log:
>>
>> -------------------------------------------------------------------------------
>> git bisect start
>> # good: [1fe5501ba1abf2b7e78295df73675423bd6899a0] Merge tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
>> git bisect good 1fe5501ba1abf2b7e78295df73675423bd6899a0
>> # bad: [b74523885a715463203d4ccc3cf8c85952d3701a] Add linux-next specific files for 20210421
>> git bisect bad b74523885a715463203d4ccc3cf8c85952d3701a
>> # good: [a59aa904b6f45af01f1f87179437e31ba98506fc] Merge remote-tracking branch 'crypto/master'
>> git bisect good a59aa904b6f45af01f1f87179437e31ba98506fc
>> # good: [58af1162bdd0819bbec853afb574190f2be62464] Merge remote-tracking branch 'tip/auto-latest'
>> git bisect good 58af1162bdd0819bbec853afb574190f2be62464
>> # bad: [2e490d45230a23b07b7b2dc5f89ec213b677b032] Merge remote-tracking branch 'vfio/next'
>> git bisect bad 2e490d45230a23b07b7b2dc5f89ec213b677b032
>> # bad: [5941c9263bb2b27b5018f66a6f4111a6ba659a49] Merge remote-tracking branch 'driver-core/driver-core-next'
>> git bisect bad 5941c9263bb2b27b5018f66a6f4111a6ba659a49
>> # good: [3fe24bd182cc22c8e7e577553ae8efe3b4236afe] Merge remote-tracking branch 'kvm/next'
>> git bisect good 3fe24bd182cc22c8e7e577553ae8efe3b4236afe
>> # good: [dbb7b6249662b1a303e275c2e0dcdbefbae681bc] Merge remote-tracking branch 'percpu/for-next'
>> git bisect good dbb7b6249662b1a303e275c2e0dcdbefbae681bc
>> # good: [e5b20246d0707a4deee2e172b55a73b05309c05d] Merge remote-tracking branch 'drivers-x86/for-next'
>> git bisect good e5b20246d0707a4deee2e172b55a73b05309c05d
>> # bad: [c8a9c285f136f0cc65ac8328cd1710b155ad3df8] debugfs: drop pointless nul-termination in debugfs_read_file_bool()
>> git bisect bad c8a9c285f136f0cc65ac8328cd1710b155ad3df8
>> # bad: [b82a7b018b93d282d0f1a41a854ca3d071e02759] platform/x86: gpd pocket fan: Clean-up by using managed work init
>> git bisect bad b82a7b018b93d282d0f1a41a854ca3d071e02759
>> # good: [b6f617df4fa936c1ab1831c2b23563f6c1add6c4] driver core: Update device link status properly for device_bind_driver()
>> git bisect good b6f617df4fa936c1ab1831c2b23563f6c1add6c4
>> # bad: [53f95c55349e75b73f69ce36b0ae2a83b3f28fde] devcoredump: avoid -Wempty-body warnings
>> git bisect bad 53f95c55349e75b73f69ce36b0ae2a83b3f28fde
>> # bad: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
>> git bisect bad 6579c8d97ad7fc5671ee60234f3b8388abee5f77
>> # good: [ea718c699055c8566eb64432388a04974c43b2ea] Revert "Revert "driver core: Set fw_devlink=on by default""
>> git bisect good ea718c699055c8566eb64432388a04974c43b2ea
>> # first bad commit: [6579c8d97ad7fc5671ee60234f3b8388abee5f77] clk: Mark fwnodes when their clock provider is added
>> -------------------------------------------------------------------------------
>>
>>
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