Re: drbd-9.1.22-rc.1 and drbd-9.2.11-rc.1
GM <[email protected]> Wed, 14 Aug 2024 19:47:46 +0100
| Newsgroups | gmane.comp.linux.drbd |
|---|---|
| Message-ID | <CACzVk9VRvhELQ93_i=mP1p9jzFJ2wxUrYOJFEF7dH9qY+V+b=A@mail.gmail.com> |
--0000000000002b62ec061fa92a2c Content-Type: text/plain; charset="UTF-8" There's an unsubscribe option in their mailing list page... hope it helps. https://lists.linbit.com/mailman/listinfo/drbd-user On Mon, 12 Aug 2024 at 10:36, Ralph Ort <[email protected]> wrote: > Dear all, > thanks for all the efforts over the years. > Mind you, please, removing me from the DL? > have a great time, cheers > Ralph > > > > Am 05.08.2024 um 15:22 schrieb Philipp Reisner < > [email protected]>: > > > > > > Hello DRBD-users, > > > > > > A detail I never cared about is if a syscall gets restarted or returns > > EINTR after the arrival of a signal. What made me learn this detail is a > > customer whose system newly created processes get a signal. Often, a > > process open()s the resources it needs to work with first, and in this > > occation, that was a drbd device. > > > > When auto-promote is enabled (which it is by default), DRBD will promote > > the drbd device to primary in the open() system call of a user space > > process. It needs to exchange some network packets, which can easily > > take milliseconds. > > > > Now, when a (non-fatal) signal arrived at just that moment, DRBD > > dutifully interrupted the promote operation and returned to user space, > > with an errno indicating that the device was not primary. > > > > And here is the problem for a random user-space process, it got an > > unexpected errno from open() and terminated. > > > > Then, I learned about EINTR and restartable syscalls. Starting with this > > release, DRBD will restart the open() syscall in such a scenario unless > > the user prepared to receive an EINTR from open() by calling sigaction() > > and omitting SA_RESTART before. > > > > Please help test the release candidate. > > > > 9.2.11-rc.1 (api:genl2/proto:86-122/transport:19) > > -------- > > * Changed merged rom 9.1.22 > > - Upgrade from partial resync to a full resync if necessary when the > > user manually resolves a split-brain situation > > - Fix a potential NULL deref when a disk fails while doing a > > forget-peer operation. > > - Fix a rcu_read_lock()/rcu_read_unlock() imbalance > > - Restart the open() syscall when a process auto promoting a drbd > device gets > > interrupted by a signal > > - Remove a deadlock that caused DRBD to connect sometimes > > exceptionally slow > > - Make detach operations interruptible > > - Added dev_is_open to events2 status information > > - Improve log readability for 2PC state changes and drbd-threads > > - Updated compability code for Linux 6.9 > > > > > > https://pkg.linbit.com//downloads/drbd/9/drbd-9.1.22-rc.1.tar.gz > > > https://github.com/LINBIT/drbd/commit/d10418bf63f0b664305d9bd4779cb48965d434f5 > > > > https://pkg.linbit.com//downloads/drbd/9/drbd-9.2.11-rc.1.tar.gz > > > https://github.com/LINBIT/drbd/commit/c52d24bca2b1c659bfba19d19602c7e319c7416d > > > > --0000000000002b62ec061fa92a2c Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div><div><div dir=3D"auto" style=3D"font-family:-apple-system,helveticaneu= e;font-size:17px;font-style:normal;font-weight:400;letter-spacing:normal;te= xt-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-= decoration:none;background-color:rgba(0,0,0,0);border-color:rgb(0,0,0);colo= r:rgb(0,0,0)">There's an unsubscribe option in their mailing list page.= .. hope it helps.</div><div dir=3D"auto" style=3D"font-family:-apple-system= ,helveticaneue;font-size:17px;font-style:normal;font-weight:400;letter-spac= ing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spac= ing:0px;text-decoration:none;background-color:rgba(0,0,0,0);border-color:rg= b(0,0,0);color:rgb(0,0,0)"><br></div><div dir=3D"auto" style=3D"font-family= :-apple-system,helveticaneue;font-size:17px;font-style:normal;font-weight:4= 00;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:no= rmal;word-spacing:0px;text-decoration:none;background-color:rgba(0,0,0,0);b= order-color:rgb(0,0,0);color:rgb(0,0,0)"><div style=3D"font-family:-apple-s= ystem,helveticaneue;background-color:rgba(0,0,0,0);border-color:rgb(0,0,0);= color:rgb(0,0,0)"><a href=3D"https://lists.linbit.com/mailman/listinfo/drbd= -user">https://lists.linbit.com/mailman/listinfo/drbd-user</a></div></div><= br></div><br></div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr" cla= ss=3D"gmail_attr">On Mon, 12 Aug 2024 at 10:36, Ralph Ort <<a href=3D"ma= ilto:[email protected]">[email protected]</a>> wrote:<br></div= ><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border= -left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:= rgb(204,204,204)">Dear all, <br> thanks for all the efforts over the years.<br> Mind you, please, removing me from the DL?<br> have a great time, cheers<br> Ralph<br> <br> <br> > Am 05.08.2024 um 15:22 schrieb Philipp Reisner <<a href=3D"mailto:p= [email protected]" target=3D"_blank">[email protected]</a>= >:<br> > <br> > <br> > Hello DRBD-users,<br> > <br> > <br> > A detail I never cared about is if a syscall gets restarted or returns= <br> > EINTR after the arrival of a signal. What made me learn this detail is= a<br> > customer whose system newly created processes get a signal. Often, a<b= r> > process open()s the resources it needs to work with first, and in this= <br> > occation, that was a drbd device.<br> > <br> > When auto-promote is enabled (which it is by default), DRBD will promo= te<br> > the drbd device to primary in the open() system call of a user space<b= r> > process. It needs to exchange some network packets, which can easily<b= r> > take milliseconds.<br> > <br> > Now, when a (non-fatal) signal arrived at just that moment, DRBD<br> > dutifully interrupted the promote operation and returned to user space= ,<br> > with an errno indicating that the device was not primary.<br> > <br> > And here is the problem for a random user-space process, it got an<br> > unexpected errno from open() and terminated.<br> > <br> > Then, I learned about EINTR and restartable syscalls. Starting with th= is<br> > release, DRBD will restart the open() syscall in such a scenario unles= s<br> > the user prepared to receive an EINTR from open() by calling sigaction= ()<br> > and omitting SA_RESTART before.<br> > <br> > Please help test the release candidate.<br> > <br> > 9.2.11-rc.1 (api:genl2/proto:86-122/transport:19)<br> > --------<br> > * Changed merged rom 9.1.22<br> >=C2=A0 - Upgrade from partial resync to a full resync if necessary when= the<br> >=C2=A0 =C2=A0 user manually resolves a split-brain situation<br> >=C2=A0 - Fix a potential NULL deref when a disk fails while doing a<br> >=C2=A0 =C2=A0 forget-peer operation.<br> >=C2=A0 - Fix a rcu_read_lock()/rcu_read_unlock() imbalance<br> >=C2=A0 - Restart the open() syscall when a process auto promoting a drb= d device gets<br> >=C2=A0 =C2=A0 interrupted by a signal<br> >=C2=A0 - Remove a deadlock that caused DRBD to connect sometimes<br> >=C2=A0 =C2=A0 exceptionally slow<br> >=C2=A0 - Make detach operations interruptible<br> >=C2=A0 - Added dev_is_open to events2 status information<br> >=C2=A0 - Improve log readability for 2PC state changes and drbd-threads= <br> >=C2=A0 - Updated compability code for Linux 6.9<br> > <br> > <br> > <a href=3D"https://pkg.linbit.com//downloads/drbd/9/drbd-9.1.22-rc.1.t= ar.gz" rel=3D"noreferrer" target=3D"_blank">https://pkg.linbit.com//downloa= ds/drbd/9/drbd-9.1.22-rc.1.tar.gz</a><br> > <a href=3D"https://github.com/LINBIT/drbd/commit/d10418bf63f0b664305d9= bd4779cb48965d434f5" rel=3D"noreferrer" target=3D"_blank">https://github.co= m/LINBIT/drbd/commit/d10418bf63f0b664305d9bd4779cb48965d434f5</a><br> > <br> > <a href=3D"https://pkg.linbit.com//downloads/drbd/9/drbd-9.2.11-rc.1.t= ar.gz" rel=3D"noreferrer" target=3D"_blank">https://pkg.linbit.com//downloa= ds/drbd/9/drbd-9.2.11-rc.1.tar.gz</a><br> > <a href=3D"https://github.com/LINBIT/drbd/commit/c52d24bca2b1c659bfba1= 9d19602c7e319c7416d" rel=3D"noreferrer" target=3D"_blank">https://github.co= m/LINBIT/drbd/commit/c52d24bca2b1c659bfba19d19602c7e319c7416d</a><br> > <br> <br> </blockquote></div></div> --0000000000002b62ec061fa92a2c--