On 02/06/2019 09:36 AM, Frank Wunderlich wrote:
> Hi,
>
> linux-net-mailinglist for reporting bugs seems not existing anymore and i
> have not found out the right one..."scripts/get_maintainer.pl -f
> ./include/linux/skbuff.h" shows only linux-kernel as mailing list which is
> not specific for network, so sorry, if i'm in the wrong mailinglist.
>
> i've recently noticed panics on my bananapi-r2 with kernel 4.14.95, but can't
> locate them in detail...all is pointing to kmem_cache_alloc and build_skb,
> but over complete different ways. so i guess it's network-related
>
> i currently don't know what is triggering this crashes, so i cannot reproduce
> them on my test-machine :(
>
> it's not only an oops...the machine stays still and have to be resettet,
> sometimes after an half hour running
>
> i had kernel 4.14.78 running before, so i think it's a change between these 2
> Kernel-versions and no OS-related (debian-stretch) or Hardware-issue
>
> currently i test with 4.14.90, if it has same behaviour...at the moment it
> seems stable...
>
> i cannot test it with another kernel-branch (4.19+), because i need to test
> it on my productive machine till i find a way to reproduce it....maybe you
> can see a hint in stacktrace to guide me...at the moment crash occours
> unexpectely
>
> i looked through git-tree but did not found anything related
>
> regards Frank
>
> here my 3 recorded crash-logs...maybe you can point me in the right direction
> (reproduce/debug/fix):
Make sure to try 4.14.98, as I am guessing this has been fixed by :
dc489ad6a2f2fcebdaecb7b8532e0d02d272ac6a Fix "net: ipv4: do not handle
duplicate fragments as overlapping"
