Am 15.01.18 um 16:37 schrieb Andreas Pflug: > Am 09.01.18 um 16:24 schrieb Lars Ellenberg: >> On Tue, Jan 09, 2018 at 03:36:34PM +0100, Lars Ellenberg wrote: >>> On Mon, Dec 25, 2017 at 03:19:42PM +0100, Andreas Pflug wrote: >>>> Running two Debian 9.3 machines, directly connected via 10GBit on-board >>>> >>>> X540 10GBit, with 15 drbd devices. >>>> >>>> When running a 4.14.2 kernel (from sid) or a 4.13.13 kernel (from >>>> stretch-backports), I see several "Wrong magic value 0x4c414245 in >>>> protocol version 101" per day issued by the secondary, with subsequent >>>> termination of the connection, reconnect and resync. The magic value >>>> logged differs, quite often 0x00. >>>> >>>> Using the current 4.9.65 kernel (or older) from stretch didn't show >>>> these aborts in the past, and after going back they're gone again. It >>>> seems to be some problem introduced after 4.9 kernels, since both 4.9 >>>> and 4.13 include drbd 8.4.7. Maybe some interference with the nic driver? >>>> >>>> Kernel drbd ixgbe errors >>>> 4.9.65 8.4.7 4.4.0-k no >>>> 4.13.13 8.4.7 5.1.0-k yes >>>> 4.14.2 8.4.10 5.1.0-k yes >>> "strange". >>> >>> What does "lsblk -D" and "lsblk -t" say? >>> >>> Do you have a scratch volume you can play with? >>> As a datapoint, you try to "blkdiscard /dev/drbdX" it? >>> dd if=/dev/zero of=/dev/drbdX bs=1G oflag=direct count=1? >>> >>> Something like that? >>> Any "easy" reproducer? >> Maybe while preparing the pull requests for upstream, >> we missed/mangled/broke something. >> >> Can you also reproduce with "out-of-tree" drbd 8.4.10? >> > So I have currently kernel 4.9.65 with drbd 8.3.7 on the primary server, > with the second server (4.14.7 with drbd 8.3.11-rc1) having all drbd > devices secondary. > > Llogged in kern.log on the secondary: > Jan 15 15:13:22 xen2 kernel: [451977.741177] drbd monitor.opt: Wrong > magic value 0x64656772 in protocol version 101
Any news on this issue, anything to test? Still getting that message 20 times a day, system not really busy. Regards, Andreas _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
