Messages in this thread | | | Subject | Re: [BUG] alpha: module xxx: Unknown relocation: 1 | From | Helge Deller <> | Date | Wed, 12 Apr 2017 07:57:52 +0200 |
| |
On 12.04.2017 04:59, Bob Tracy wrote: > (Adding linux-kernel to the distribution. The issue seems to be > architecture-specific, but I'm trying to understand what broke.) > > The 4.10-rc1 patch set made fairly extensive modifications to > "a/kernel/module.c" (I'm leaving the "a" there so there's no doubt I > mean the top-level "kernel/module.c" file and not any of the > architecture-specific ones). > > One of the changes was to replace an include of <asm/uaccess.h> with > <linux/uaccess.h>. This is potentially significant because of the > mod we made to alpha's <asm/uaccess.h> to fix the BRSGP relocation > error on __copy_user() issue. > > Bottom line is, no kernel I've built since 4.9 can load a module. All > attempts to load a module result in the error message emitted by > "arch/alpha/kernel/module.c" as follows: > > module XXX: Unknown relocation: 1 > > I'll start attempting to revert the recent module patches to see if that > helps. If anyone reading this knows what's happening, feel free to > weigh-in before I spend too much time rebuilding kernels on a slow > machine.
I assume it's due this commmit "modversions: treat symbol CRCs as 32 bit quantities": https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71810db27c1c853b335675bee335d893bc3d324b
For parisc this patch solves it: parisc: support R_PARISC_SECREL32 relocation in modules https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f655322b1ba4bd46e26e307d04098f9c84df764
> module XXX: Unknown relocation: 1
For alpha it seems you need to add similar code to handle R_ALPHA_REFLONG to apply_relocate_add() in arch/alpha/kernel/module.c
Helge
| |