Re: [PATCH] kbuild: disable clang's default use of -fmerge-all-constants

2018-03-20 Thread Alexei Starovoitov
On Wed, Mar 21, 2018 at 01:38:45AM +0100, Daniel Borkmann wrote: > On 03/21/2018 01:36 AM, Linus Torvalds wrote: > > On Tue, Mar 20, 2018 at 5:18 PM, Daniel Borkmann > > wrote: > >> Prasad reported that he has seen crashes in BPF subsystem with netd > >> on Android with arm64 in the form of (note

Re: [PATCH] kbuild: disable clang's default use of -fmerge-all-constants

2018-03-20 Thread Daniel Borkmann
On 03/21/2018 01:36 AM, Linus Torvalds wrote: > On Tue, Mar 20, 2018 at 5:18 PM, Daniel Borkmann wrote: >> Prasad reported that he has seen crashes in BPF subsystem with netd >> on Android with arm64 in the form of (note, the taint is unrelated): > > Ack. This looks good to me. And thanks for not

Re: [PATCH] kbuild: disable clang's default use of -fmerge-all-constants

2018-03-20 Thread Linus Torvalds
On Tue, Mar 20, 2018 at 5:18 PM, Daniel Borkmann wrote: > Prasad reported that he has seen crashes in BPF subsystem with netd > on Android with arm64 in the form of (note, the taint is unrelated): Ack. This looks good to me. And thanks for noticing the behavior wrt the correct gcc merging. > [

[PATCH] kbuild: disable clang's default use of -fmerge-all-constants

2018-03-20 Thread Daniel Borkmann
Prasad reported that he has seen crashes in BPF subsystem with netd on Android with arm64 in the form of (note, the taint is unrelated): [ 4134.721483] Unable to handle kernel paging request at virtual address 80001 [ 4134.820925] Mem abort info: [ 4134.901283] Exception class = DABT