Re: ssh/sshd change in snaps
On Wed, 17 Nov 2021, Damien Miller wrote: > On Tue, 16 Nov 2021, Damien Miller wrote: > > > Another couple of fixes in tomorrow's snaps. One to avoid errors like: > > > > > channel 3: chan_read_failed for istate 3 > > > > Another avoids a situation where sshd could get stuck spinning on poll() > > if it fails. > > > > (Both uncovered by web browsing through a SOCKS dynamic forwarder) > > BTW I have uploaded the diff for this change to github in case anyone > is curious: > > https://patch-diff.githubusercontent.com/raw/djmdjm/openssh-wip/pull/6 sorry, bad link. Correct one is: https://github.com/djmdjm/openssh-wip/pull/6.diff https://github.com/djmdjm/openssh-wip/pull/6
Re: ssh/sshd change in snaps
On Tue, 16 Nov 2021, Damien Miller wrote: > Another couple of fixes in tomorrow's snaps. One to avoid errors like: > > > channel 3: chan_read_failed for istate 3 > > Another avoids a situation where sshd could get stuck spinning on poll() > if it fails. > > (Both uncovered by web browsing through a SOCKS dynamic forwarder) BTW I have uploaded the diff for this change to github in case anyone is curious: https://patch-diff.githubusercontent.com/raw/djmdjm/openssh-wip/pull/6 or in patch(1) format: https://patch-diff.githubusercontent.com/raw/djmdjm/openssh-wip/pull/6.diff
Re: ssh/sshd change in snaps
On Sat, 13 Nov 2021, Damien Miller wrote: > On Thu, 11 Nov 2021, Damien Miller wrote: > > > Hi, > > > > Snaps is now carrying a change to ssh/sshd that converts their > > mainloops from select(2) to poll/ppoll(2). This change should be > > completely transparent, but please be on the lookout for any weird > > behaviour. Bugs in the revised mainloop are most likely to appear > > as crashes, hangs or ssh/sshd using lots of CPU when idle. > > > > Please report anything you see here, to openssh@ or to me. > > FYI this has gone through one interation of bugfixes since it first went > in. If you are running a snap from yesterday and experience problems then > please upgrade to a newer one and retest. Another couple of fixes in tomorrow's snaps. One to avoid errors like: > channel 3: chan_read_failed for istate 3 Another avoids a situation where sshd could get stuck spinning on poll() if it fails. (Both uncovered by web browsing through a SOCKS dynamic forwarder) -d
Re: ssh/sshd change in snaps
On Thu, 11 Nov 2021, Damien Miller wrote: > Hi, > > Snaps is now carrying a change to ssh/sshd that converts their > mainloops from select(2) to poll/ppoll(2). This change should be > completely transparent, but please be on the lookout for any weird > behaviour. Bugs in the revised mainloop are most likely to appear > as crashes, hangs or ssh/sshd using lots of CPU when idle. > > Please report anything you see here, to openssh@ or to me. FYI this has gone through one interation of bugfixes since it first went in. If you are running a snap from yesterday and experience problems then please upgrade to a newer one and retest. -d
