I have a set of J1900 hosts running 11.0-RELEASE-p1 that experience seemingly random panics. The panics are all basically the same: Fatal trap 12: page fault while in kernel mode fault code = supervisor read data, page not present Adding workloads to the hosts seems to increase panic frequency, but the panics have also occurred on completely idle hosts. Similarly, uptime when panicking has been as low as minutes, and as high as ~620 days. For reasons, it has not been possible to extract a coredump from these hosts, nor practical to run memtest on them or upgrade them to a newer release. About 1% of our hosts are affected each day, so we've just been living with the problem. However, while testing 12.0 on the same hardware, I encountered the same panic and was able to capture the core dump. (See below.) All of my Google-fu on this panic has turned up threads suggesting the problem is hardware, but there are two problems with that idea... One, memtest has turned up no errors on 12.0 host I witnessed the panic on. Two, a small number of systems on the same hardware are running 10.3-RELEASE, and have experienced no panics in their history. Panics have only happened on 11s, and now 12. kgdb output from the panic follows. (This particular host was in the middle of rebooting when it panicked.) Hoping someone here has some insight. My uninformed wild-ass guess is something relating to spectre/meltdown fixes. Thanks, -Snow
I've been running 10.x, 11.x and 12.0 for a while on several J1900s, namely ASRock Q1900M and Q1900M Pro3 boards. All of them are getting a good beating on occassion, running for example poudriere on top of GELI and ZFS software RAIDs attached to the onboard 2-port ACHI SATA controller and Marvel based PCIe 4-port SATA controllers. I've outfitted all of them with 4-port Intel PRO/1000 PCIe driven by igb(4), and am not using the onboard re(4) NICs. I can't recall ever seeing a panic like you described. Could you share a full dmesg and what mainboard(s) you are using ? MfG CoCo _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
