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Groups > linux.kernel > #1456044
| From | Alan Cooper <alcooperx@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [QUESTION] kexec: ARM: kexec reorders device suspend/resume order |
| Date | 2016-08-04 00:40 +0200 |
| Message-ID | <s2cZr-dY-11@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
I've found a problem on our ARM based systems where a kexec'd kernel fails coming out of S3. The problem is caused by the re-ordering of the device tree nodes done by kexec (which reconstructs the device tree from the proc file system). The re-ordered DT nodes cause the device registration to change order which in turn changes the suspend/resume order. This is breaking a few of our drivers that have dependencies on other drivers. We ordered the original DT to handle these dependencies but the kexec re-order breaks this. I can fix this by making the dependencies between drivers explicit but I was wondering if anyone had ideas on maintaining the original DT node order on kexec? Thanks Al
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[QUESTION] kexec: ARM: kexec reorders device suspend/resume order Alan Cooper <alcooperx@gmail.com> - 2016-08-04 00:40 +0200
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