On Thu, Sep 19, 2019 at 1:07 PM Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
On Thu, Sep 19, 2019 at 08:21:43AM -0700, Christoph Paasch wrote:
Hello Greg & Sasha,
On Sat, Sep 14, 2019 at 12:20 AM Christoph Paasch cpaasch@apple.com wrote:
The above referenced commit has problems on older non-rbTree kernels.
AFAICS, the commit has only been backported to 4.14 up to now, but the commit that fdfc5c8594c2 is fixing (namely ce5ec440994b ("tcp: ensure epoll edge trigger wakeup when write queue is empty"), is in v4.2.
Christoph Paasch (2): tcp: Reset send_head when removing skb from write-queue tcp: Don't dequeue SYN/FIN-segments from write-queue
I'm checking in on these two patches for the 4.14 stable-queue. Especially the panic fixed by patch 2 is pretty easy to trigger :-/
Dude, it's been less than a week. And it's the middle of the merge window. And it's the week after Plumbers and Maintainer's summit.
Relax...
Sorry!
I'll go queue these up now, but I am worried about them, given this total mess the backports seem to have caused.
Why isn't this needed in 4.9.y and 4.4.y also?
From what I see, commit fdfc5c8594c2 has not been backported to 4.9
and older. But I can imagine that eventually it will have to be backported (I guess Eric can confirm or deny). If it gets backported to 4.9 and 4.4, my 2 patches will have to come with them.
Christoph