Re: Kernel Panic in VMXNET3 Driver

From	Mini Trader <miniflowtrader@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Kernel Panic in VMXNET3 Driver
Date	2017-07-04 01:00 +0200
Message-ID	<tZitY-7Ys-1@gated-at.bofh.it> (permalink)
References	<tZhey-7h6-19@gated-at.bofh.it> <tZhod-7kC-9@gated-at.bofh.it> <tZhHA-7Go-7@gated-at.bofh.it> <tZhRf-7JE-9@gated-at.bofh.it> <tZikh-7UA-3@gated-at.bofh.it>
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I am on stretch  Debian 4.9.30-2+deb9u2.  Is there a link to submit this
bug too?

On Ubuntu's 4.4.0-83-generic this is not reproducible.


On Mon, Jul 3, 2017 at 6:45 PM, deloptes <deloptes@gmail.com> wrote:

> Mini Trader wrote:
>
> > More information.  I found a post here:
> >
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1650635
> >
> > They mention LRO so I disabled it.  I cannot reproduce if LRO is
> disabled.
> >
> > On Mon, Jul 3, 2017 at 5:59 PM, Mini Trader <miniflowtrader@gmail.com>
> > wrote:
> >
> >> Looks to be the same.
> >>
> >> On Mon, Jul 3, 2017 at 5:48 PM, deloptes <deloptes@gmail.com> wrote:
> >>
> >>> Mini Trader wrote:
> >>>
> >>> > task_numa_fault+0x6ed/0xd20
> >>>
> >>> what happens if you boot the vm with numa=off
> >>>
> >>>
> >>>
> >>>
> >>
>
> the change mentioned in the article is in the kernel - at least 4.11.2 - I
> don't know about your version. The article is about 4.4.
>
> perhaps solved by chance - you have to report back to kernel maintainer I
> guess
>
> 4.11.2 and 4.10.14
>
> line nr 1395 to 1415
>                         if (VMXNET3_VERSION_GE_2(adapter) &&
>                             rcd->type == VMXNET3_CDTYPE_RXCOMP_LRO) {
>                                 struct Vmxnet3_RxCompDescExt *rcdlro;
>                                 rcdlro = (struct Vmxnet3_RxCompDescExt
> *)rcd;
>
>                                 segCnt = rcdlro->segCnt;
>                                 WARN_ON_ONCE(segCnt == 0);
>                                 mss = rcdlro->mss;
>                                 if (unlikely(segCnt <= 1))
>                                         segCnt = 0;
>                         } else {
>                                 segCnt = 0;
>                         }
>                 } else {
>                         BUG_ON(ctx->skb == NULL && !skip_page_frags);
>
>                         /* non SOP buffer must be type 1 in most cases */
>                         BUG_ON(rbi->buf_type != VMXNET3_RX_BUF_PAGE);
>                         BUG_ON(rxd->btype != VMXNET3_RXD_BTYPE_BODY);
>
>
>
>

Thread

Kernel Panic in VMXNET3 Driver Mini Trader <miniflowtrader@gmail.com> - 2017-07-03 23:40 +0200
  Re: Kernel Panic in VMXNET3 Driver deloptes <deloptes@gmail.com> - 2017-07-03 23:50 +0200
    Re: Kernel Panic in VMXNET3 Driver Mini Trader <miniflowtrader@gmail.com> - 2017-07-04 00:10 +0200
      Re: Kernel Panic in VMXNET3 Driver Mini Trader <miniflowtrader@gmail.com> - 2017-07-04 00:20 +0200
        Re: Kernel Panic in VMXNET3 Driver deloptes <deloptes@gmail.com> - 2017-07-04 00:50 +0200
          Re: Kernel Panic in VMXNET3 Driver Mini Trader <miniflowtrader@gmail.com> - 2017-07-04 01:00 +0200
            Re: Kernel Panic in VMXNET3 Driver deloptes <deloptes@gmail.com> - 2017-07-04 08:30 +0200

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