Messages in this thread | | | From | Ard Biesheuvel <> | Date | Wed, 16 Nov 2016 20:29:13 +0000 | Subject | Re: [PATCH v3 0/3] modversions: Fix CRC mangling under CONFIG_RELOCATABLE=y |
| |
On 16 November 2016 at 19:23, Uwe Kleine-König <u.kleine-koenig@pengutronix.de> wrote: > On Thu, Oct 27, 2016 at 05:27:08PM +0100, Ard Biesheuvel wrote: >> This series is a followup to the single patch 'modversions: treat symbol >> CRCs as 32 bit quantities on 64 bit archs', of which two versions have >> been sent out so far [0][1] >> >> As pointed out by Michael, GNU ld behaves a bit differently between arm64 >> and PowerPC64, and where the former gets rid of all runtime relocations >> related to CRCs, the latter is not as easily convinced. >> >> Patch #1 fixes the issue where CRCs are corrupted by the runtime relocation >> routines for 32-bit PowerPC, for which the original fix was effectively >> reverted by commit 0e0ed6406e61 ("powerpc/modules: Module CRC relocation fix >> causes perf issues") >> >> Patch #2 adds handling of R_PPC64_ADDR32 relocations against the NULL .dynsym >> symbol entry to the PPC64 runtime relocation routines, so it is prepared to >> deal with CRCs being emitted as 32-bit quantities. >> >> Patch #3 is the original patch from the v1 and v2 submissions. > > Is this related to me seeing > > [ 2.111424] mvneta: module verification failed: signature and/or required key missing - tainting kernel > [ 2.126061] scsi_mod: no symbol version for _clear_bit > [ 2.131257] scsi_mod: Unknown symbol _clear_bit (err -22) > [ 2.138093] mvneta: no symbol version for _clear_bit > [ 2.143117] mvneta: Unknown symbol _clear_bit (err -22) > [ 2.144135] mvmdio: no symbol version for __gnu_mcount_nc > [ 2.144138] mvmdio: Unknown symbol __gnu_mcount_nc (err -22) > ... > > ? If so, this would be great to mention it in the commit log to make > people searching for this issue actually find this patch set. >
No, I don't think it is. My guess would be that it is caused by
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dd1837d75
| |