Hi, > On Fri, Oct 04, 2024 at 07:17:24AM +0800, Wang Yugui wrote: > > Hi, > > > > > This is the start of the stable review cycle for the 6.6.54 release. > > > There are 533 patches in this series, all will be posted as a response > > > to this one. If anyone has any issues with these being applied, please > > > let me know. > > > > > > Responses should be made by Sat, 05 Oct 2024 10:30:30 +0000. > > > Anything received after that time might be too late. > > > > > > The whole patch series can be found in one patch at: > > > https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.54-rc2.gz > > > or in the git tree and branch at: > > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.6.y > > > and the diffstat can be found below. > > > > A new waring is report by 'make bzImage' in 6.6.54-rc2, > > but that is not reported in 6.6.53 and 6.12-rc1. > > > > arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder bug, please report this. > > arch/x86/tools/insn_decoder_test: warning: ffffffff8103c4d5: c4 03 81 48 cf e9 vpermil2ps $0x9,%xmm15,%xmm14,%xmm15,%xmm9 > > arch/x86/tools/insn_decoder_test: warning: objdump says 6 bytes, but insn_get_length() says 0 > > arch/x86/tools/insn_decoder_test: warning: Decoded and checked 6968668 instructions with 1 failures > > > > the root cause is yet not clear. > > I've been seeing this locally for all 6.6.y releases, so for me it isn't > new, and I can't seem to track down the root cause. As it's just now > showing up for you, can you do a 'git bisect' to find out the issue? 'git bisect' show that the root cause is x86/entry: Remove unwanted instrumentation in common_interrupt() after reverting this patch to 6.6.54-rc2, this warning does not happen. gcc --version: gcc (GCC) 8.3.1 20190311 (Red Hat 8.3.1-3) Best Regards Wang Yugui (wangyugui@xxxxxxxxxxxx) 2024/10/04
