On 14.10.2019 12:01, Jessica Yu wrote: > +++ Heiner Kallweit [11/10/19 21:26 +0200]: >> On 10.10.2019 19:15, Luis Chamberlain wrote: >>> >>> >>> On Thu, Oct 10, 2019, 6:50 PM Heiner Kallweit <hkallwe...@gmail.com >>> <mailto:hkallwe...@gmail.com>> wrote: >>> >>> MODULE_SOFTDEP("pre: realtek") >>> >>> Are you aware of any current issues with module loading >>> that could cause this problem? >>> >>> >>> Nope. But then again I was not aware of MODULE_SOFTDEP(). I'd encourage an >>> extension to lib/kmod.c or something similar which stress tests this. One >>> way that comes to mind to test this is to allow a new tests case which >>> loads two drives which co depend on each other using this macro. That'll >>> surely blow things up fast. That is, the current kmod tests uses >>> request_module() or get_fs_type(), you'd want a new test case with this >>> added using then two new dummy test drivers with the macro dependency. >>> >>> If you want to resolve this using a more tested path, you could have >>> request_module() be used as that is currently tested. Perhaps a test patch >>> for that can rule out if it's the macro magic which is the issue. >>> >>> Luis >>> >> Maybe issue is related to a bug in introduction of symbol namespaces, see >> here: >> https://lkml.org/lkml/2019/10/11/659 > > If you're running into depmod and module loading issues with kernels > >=5.3-rc1, > it's likely due to the namespaces patchset and we're working on > getting all the kinks fixed. Could you please ask the bug reporter to > try the latest -rc kernel with these set of fixes applied on top? > > > https://lore.kernel.org/linux-modules/20191010151443.7399-1-maenn...@google.com/ > > They fix a known depmod issue caused by our __ksymtab naming scheme, > which is being reverted in favor of extracting the namespace from > __kstrtabns and __ksymtab_strings. These fixes will be in by -rc4. > Thanks a lot, I'll check with the affected users. Maybe worth to be noted: I wasn't able to reproduce the module loading issue on my systems, one difference is that affected users have kmod utils version 25 and I have version 26. I asked them to upgrade to v26 and re-test, feedback is pending.
> Thanks, > > Jessica > > > . > Heiner
