On Wed, Jan 30, 2019 at 9:28 AM Lance Richardson <lance...@gmail.com> wrote: > > On Wed, Jan 30, 2019 at 12:17 PM Cong Wang <xiyou.wangc...@gmail.com> wrote: > > > > On Wed, Jan 30, 2019 at 8:54 AM Ivan Babrou <i...@cloudflare.com> wrote: > > > > > > Hey, > > > > > > We've upgraded some machines from 4.19.13 to 4.19.18 and some of them > > > crashed with the following: > > > > > > [ 2313.192006] general protection fault: 0000 [#1] SMP PTI > > > [ 2313.205924] CPU: 32 PID: 65437 Comm: nginx-fl Tainted: G > > > O 4.19.18-cloudflare-2019.1.8 #2019.1.8 > > "Tainted: GO" appears to mean that an out-of tree kernel module was > loaded. If so, information about that module and whether the crash > occurs when it hasn't been loaded might be of interest.
That module is Solarflare NIC driver. On in-tree Mellanox we've only seen skb_clone crashes. > - Lance > > > > [ 2313.224973] Hardware name: Quanta Computer Inc. QuantaPlex > > > T41S-2U/S2S-MB, BIOS S2S_3B10.03 06/21/2018 > > > [ 2313.243400] RIP: 0010:kmem_cache_alloc_node+0x178/0x1f0 > > > > This looks more like an mm bug than a networking one. > > > > Also, it is always helpful if you can map the RIP to source code, > > using scripts/faddr2line or scripts/decode_stacktrace.sh. > > > > > > Thanks. > >
