On 8/14/20 9:32 AM, Guillaume Tucker wrote:
> On 12/08/2020 06:31, Guillaume Tucker wrote:
>> On 10/07/2020 00:19, Suman Anna wrote:
>>> The CMA reserved memory nodes have been added for the IPU and DSP
>>> remoteproc devices on all the OMAP4-based Panda boards. These nodes
>>> are assigned to the respective rproc device nodes, and both the
>>> IPU and DSP remote processors are enabled for all these boards.
>>>
>>> The current CMA pools and sizes are defined statically for each device.
>>> The starting addresses are fixed to meet current dependencies on the
>>> remote processor firmwares, and will go away when the remote-side
>>> code has been improved to gather this information runtime during
>>> its initialization.
>>>
>>> An associated pair of the rproc node and its CMA node can be disabled
>>> later on if there is no use-case defined to use that remote processor.
>>>
>>> Signed-off-by: Suman Anna <s-anna@xxxxxx>
>>> ---
>>> arch/arm/boot/dts/omap4-panda-common.dtsi | 30 +++++++++++++++++++++++
>>> 1 file changed, 30 insertions(+)
>>>
>>> diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
>>> index 55ea8b6189af..ef79028fc95f 100644
>>> --- a/arch/arm/boot/dts/omap4-panda-common.dtsi
>>> +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
>>> @@ -12,6 +12,26 @@ memory@80000000 {
>>> reg = <0x80000000 0x40000000>; /* 1 GB */
>>> };
>>>
>>> + reserved-memory {
>>> + #address-cells = <1>;
>>> + #size-cells = <1>;
>>> + ranges;
>>> +
>>> + dsp_memory_region: dsp-memory@98000000 {
>>> + compatible = "shared-dma-pool";
>>> + reg = <0x98000000 0x800000>;
>>> + reusable;
>>> + status = "okay";
>>> + };
>>> +
>>> + ipu_memory_region: ipu-memory@98800000 {
>>> + compatible = "shared-dma-pool";
>>> + reg = <0x98800000 0x7000000>;
>>> + reusable;
>>> + status = "okay";
>>> + };
>>> + };
>>> +
>>> chosen {
>>> stdout-path = &uart3;
>>> };
>>> @@ -571,3 +591,13 @@ hdmi_out: endpoint {
>>> };
>>> };
>>> };
>>> +
>>> +&dsp {
>>> + status = "okay";
>>> + memory-region = <&dsp_memory_region>;
>>> +};
>>> +
>>> +&ipu {
>>> + status = "okay";
>>> + memory-region = <&ipu_memory_region>;
>>> +};
>>>
>>
>> This appears to be causing some BUG alert messages:
>>
>> BUG: Bad page state in process swapper/0 pfn:9c801
>>
>> as reported on kernelci.org:
>>
>> https://kernelci.org/test/case/id/5f326c6661360154c452c1c9/
>>
>> I've run a bisection and it landed on this commit. If you fix it
>> with another patch, please add:
>>
>> Reported-by: "kernelci.org bot" <bot@xxxxxxxxxxxx>
>
>
> This was bisected again automatically on mainline, see the report
> below. Is anyone available to take a look, or could the patch be
> reverted?
Thanks Guillaume for the report. I will take a look at this today. It is strange
that the bisect is pointing to this commit as reserving a CMA pool and assigning
it to a device should be fairly normal usage. Is the issue seen only on OMAP4
Pandaboard and not any of the other OMAP5 uEVM or DRA7xx/AM57xx EVMS?
regards
Suman
>
> Thanks,
> Guillaume
>
> On 14/08/2020 15:22, 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@xxxxxxxxxxxx> *
>> * *
>> * Hope this helps! *
>> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>
>> mainline/master bisection: baseline.dmesg.alert on panda
>>
>> Summary:
>> Start: a1d21081a60d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
>> Plain log: https://storage.kernelci.org/mainline/master/v5.8-13249-ga1d21081a60d/arm/multi_v7_defconfig+CONFIG_SMP=n/gcc-8/lab-collabora/baseline-omap4-panda.txt
>> HTML log: https://storage.kernelci.org/mainline/master/v5.8-13249-ga1d21081a60d/arm/multi_v7_defconfig+CONFIG_SMP=n/gcc-8/lab-collabora/baseline-omap4-panda.html
>> Result: b4778e787fe9 ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP
>>
>> Checks:
>> revert: PASS
>> verify: PASS
>>
>> Parameters:
>> Tree: mainline
>> URL: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> Branch: master
>> Target: panda
>> CPU arch: arm
>> Lab: lab-collabora
>> Compiler: gcc-8
>> Config: multi_v7_defconfig+CONFIG_SMP=n
>> Test case: baseline.dmesg.alert
>>
>> Breaking commit found:
>>
>> -------------------------------------------------------------------------------
>> commit b4778e787fe9e82dcbff8150ebfbe6fea0b6c4e1
>> Author: Suman Anna <s-anna@xxxxxx>
>> Date: Thu Jul 9 18:19:47 2020 -0500
>>
>> ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP
>>
>> The CMA reserved memory nodes have been added for the IPU and DSP
>> remoteproc devices on all the OMAP4-based Panda boards. These nodes
>> are assigned to the respective rproc device nodes, and both the
>> IPU and DSP remote processors are enabled for all these boards.
>>
>> The current CMA pools and sizes are defined statically for each device.
>> The starting addresses are fixed to meet current dependencies on the
>> remote processor firmwares, and will go away when the remote-side
>> code has been improved to gather this information runtime during
>> its initialization.
>>
>> An associated pair of the rproc node and its CMA node can be disabled
>> later on if there is no use-case defined to use that remote processor.
>>
>> Signed-off-by: Suman Anna <s-anna@xxxxxx>
>> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
>>
>> diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
>> index 55ea8b6189af..ef79028fc95f 100644
>> --- a/arch/arm/boot/dts/omap4-panda-common.dtsi
>> +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
>> @@ -12,6 +12,26 @@
>> reg = <0x80000000 0x40000000>; /* 1 GB */
>> };
>>
>> + reserved-memory {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + dsp_memory_region: dsp-memory@98000000 {
>> + compatible = "shared-dma-pool";
>> + reg = <0x98000000 0x800000>;
>> + reusable;
>> + status = "okay";
>> + };
>> +
>> + ipu_memory_region: ipu-memory@98800000 {
>> + compatible = "shared-dma-pool";
>> + reg = <0x98800000 0x7000000>;
>> + reusable;
>> + status = "okay";
>> + };
>> + };
>> +
>> chosen {
>> stdout-path = &uart3;
>> };
>> @@ -571,3 +591,13 @@
>> };
>> };
>> };
>> +
>> +&dsp {
>> + status = "okay";
>> + memory-region = <&dsp_memory_region>;
>> +};
>> +
>> +&ipu {
>> + status = "okay";
>> + memory-region = <&ipu_memory_region>;
>> +};
>> -------------------------------------------------------------------------------
>>
>>
>> Git bisection log:
>>
>> -------------------------------------------------------------------------------
>> git bisect start
>> # good: [e4cbce4d131753eca271d9d67f58c6377f27ad21] Merge tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
>> git bisect good e4cbce4d131753eca271d9d67f58c6377f27ad21
>> # bad: [a1d21081a60dfb7fddf4a38b66d9cef603b317a9] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
>> git bisect bad a1d21081a60dfb7fddf4a38b66d9cef603b317a9
>> # bad: [47ec5303d73ea344e84f46660fff693c57641386] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
>> git bisect bad 47ec5303d73ea344e84f46660fff693c57641386
>> # bad: [e4a7b2dc35d9582c253cf5e6d6c3605aabc7284d] Merge tag 'leds-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
>> git bisect bad e4a7b2dc35d9582c253cf5e6d6c3605aabc7284d
>> # bad: [74858abbb1032222f922487fd1a24513bbed80f9] Merge tag 'cap-checkpoint-restore-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
>> git bisect bad 74858abbb1032222f922487fd1a24513bbed80f9
>> # bad: [2f3fbfdaf77f3ac417d0511fac221f76af79f6fc] Merge tag 'arm-dt-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
>> git bisect bad 2f3fbfdaf77f3ac417d0511fac221f76af79f6fc
>> # bad: [c6e2e454baef6080ef89c2b6488e708d5fa0f052] Merge tag 'qcom-arm64-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt
>> git bisect bad c6e2e454baef6080ef89c2b6488e708d5fa0f052
>> # bad: [3502e079c6bcff95f5c34eecb5c1d9ad1379ae0d] Merge tag 'tegra-for-5.9-arm-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt
>> git bisect bad 3502e079c6bcff95f5c34eecb5c1d9ad1379ae0d
>> # bad: [39a85f6d91a1a827985ce44a346a99f68167d0ee] Merge tag 'v5.8-next-dts64' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/dt
>> git bisect bad 39a85f6d91a1a827985ce44a346a99f68167d0ee
>> # good: [dfe2a4cf8e2f4c1f53877aa6cb38eda102a14681] Merge tag 'uniphier-dt64-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into arm/dt
>> git bisect good dfe2a4cf8e2f4c1f53877aa6cb38eda102a14681
>> # bad: [75f66813e081d2bd718d931ee50334c12a9e4492] Replace HTTP links with HTTPS ones: OMAP DEVICE TREE SUPPORT
>> git bisect bad 75f66813e081d2bd718d931ee50334c12a9e4492
>> # good: [9ae60ac13fc847d7175587290a1a9aa2aac091b0] ARM: dts: omap4: Update the DSP node
>> git bisect good 9ae60ac13fc847d7175587290a1a9aa2aac091b0
>> # bad: [3026ce47498dfdc92966d8d66f10afabf7190c46] ARM: dts: omap5: Add DSP and IPU nodes
>> git bisect bad 3026ce47498dfdc92966d8d66f10afabf7190c46
>> # good: [691eb1805fcfc1a2ede06aec6a4d85d312961146] ARM: dts: omap4: Add aliases for rproc nodes
>> git bisect good 691eb1805fcfc1a2ede06aec6a4d85d312961146
>> # bad: [7f7d771c00bf65d18a3e30e983b4061a418efbf4] ARM: dts: omap4-panda-common:: Add system timers to DSP and IPU
>> git bisect bad 7f7d771c00bf65d18a3e30e983b4061a418efbf4
>> # bad: [b4778e787fe9e82dcbff8150ebfbe6fea0b6c4e1] ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP
>> git bisect bad b4778e787fe9e82dcbff8150ebfbe6fea0b6c4e1
>> # first bad commit: [b4778e787fe9e82dcbff8150ebfbe6fea0b6c4e1] ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP
>> -------------------------------------------------------------------------------
>
>
