On Mon, Jun 25, 2018 at 9:48 AM, Daniel Borkmann <dan...@iogearbox.net> wrote: > On 06/24/2018 11:24 AM, Peter Robinson wrote: >>>> I'm seeing this netlink/sk_filter_trim_cap crash on ARMv7 across quite >>>> a few ARMv7 platforms on Fedora with 4.18rc1. I've tested RPi2/RPi3 >>>> (doesn't happen on aarch64), AllWinner H3, BeagleBone and a few >>>> others, both LPAE/normal kernels. >>>> >>>> I'm a bit out of my depth in this part of the kernel but I'm wondering >>>> if it's known, I couldn't find anything that looked obvious on a few >>>> mailing lists. >>>> >>>> Peter >>> >>> Hi Peter >>> >>> Could you provide symbolic information ? >> >> I passed in through scripts/decode_stacktrace.sh is that what you were after: >> >> [ 8.673880] Internal error: Oops: a06 [#10] SMP ARM >> [ 8.673949] ---[ end trace 049df4786ea3140a ]--- >> [ 8.678754] Modules linked in: >> [ 8.678766] CPU: 1 PID: 206 Comm: systemd-udevd Tainted: G D >> 4.18.0-0.rc1.git0.1.fc29.armv7hl+lpae #1 >> [ 8.678769] Hardware name: Allwinner sun8i Family >> [ 8.678781] PC is at sk_filter_trim_cap () >> [ 8.678790] LR is at (null) >> [ 8.709463] pc : lr : psr: 60000013 () >> [ 8.715722] sp : c996bd60 ip : 00000000 fp : 00000000 >> [ 8.720939] r10: ee79dc00 r9 : c12c9f80 r8 : 00000000 >> [ 8.726157] r7 : 00000000 r6 : 00000001 r5 : f1648000 r4 : 00000000 >> [ 8.732674] r3 : 00000007 r2 : 00000000 r1 : 00000000 r0 : 00000000 >> [ 8.739193] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment >> user >> [ 8.746318] Control: 30c5387d Table: 6e7bc880 DAC: ffe75ece >> [ 8.752055] Process systemd-udevd (pid: 206, stack limit = 0x(ptrval)) >> [ 8.758574] Stack: (0xc996bd60 to 0xc996c000) > [...] > > Should be fixed by (PR to Linus with fix is pending): > > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=9262478220eac908ae6e168c3df2c453c87e2da3
Unfortunately it's not, building against the git checkout of the first failed Fedora kernel (see rc2 issue below) it has the same effect :-( I thought it might have been [1] because it touches bits of that code but if I trying with rc2 and that reverted I got no output at all, checking the vanilla Fedora build from friday (so almost rc2) it doesn't boot at all either so I've got a second thing to investigate. Peter [1] https://lkml.org/lkml/2018/4/29/30
