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SubjectRe: next/master bisection: baseline.login on jetson-tk1
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On 12/05/2020 16:16, Joerg Roedel wrote:
> Hi Guillaume,
>
> thanks for the report!
>
> On Tue, May 12, 2020 at 07:05:13AM +0100, Guillaume Tucker wrote:
>>> Summary:
>>> Start: 4b20e7462caa6 Add linux-next specific files for 20200511
>>> Plain log: https://storage.kernelci.org/next/master/next-20200511/arm/tegra_defconfig/gcc-8/lab-collabora/baseline-tegra124-jetson-tk1.txt
>>> HTML log: https://storage.kernelci.org/next/master/next-20200511/arm/tegra_defconfig/gcc-8/lab-collabora/baseline-tegra124-jetson-tk1.html
>>> Result: 3eeeb45c6d044 iommu: Remove add_device()/remove_device() code-paths
>
> Okay, so it faults at
>
> PC is at __iommu_probe_device+0x20/0x1b8
>
> Can you translate that for me into a code-line, please? That would help
> finding the issue.

Sure, sorry for the delay. I've built my own image as vmlinux is
not stored by kernelci and reproduced the problem:

https://lava.collabora.co.uk/scheduler/job/2403076#L544

which this time gave me:

<4>[ 2.540558] PC is at iommu_probe_device+0x1c/0x15c
<4>[ 2.545606] LR is at of_iommu_configure+0x15c/0x1c4
<4>[ 2.550736] pc : [<c092e0e4>] lr : [<c0932c0c>] psr: a0000013

which in turn brings us to:

(gdb) l *0xc092e0e4
0xc092e0e4 is in iommu_probe_device (drivers/iommu/iommu.c:232).
227 int ret;
228
229 if (!dev_iommu_get(dev))
230 return -ENOMEM;
231
232 if (!try_module_get(ops->owner)) {
233 ret = -EINVAL;
234 goto err_out;
235 }
236


Hope this helps.

Guillaume

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