search for: alllocks

Two machines (NFS Server: running ZFS / Client: disk-less), both are running FreeBSD r253506. The NFS client starts to deadlock processes within a few hours. It usually gets worse from there on. The processes stay in "D" state. I haven't been able to reproduce it when I want it to happen. I only have to wait a few hours until the deadlocks occur when traffic to the client machine

...20 5:54 17.77% pop3-login 15759 dovenull 77 0 42664K 16616K RUN 4 1:06 17.77% pop3-login 15780 dovenull 76 0 42664K 13684K RUN 22 3:19 12.89% pop3-login [3] db:0:kdb.enter.sysctl> run lockinfo db:1:lockinfo> show locks No such command db:1:locks> show alllocks No such command db:1:alllocks> show lockedvnods Locked vnodes db:0:kdb.enter.sysctl> trace 100058 Tracing pid 0 tid 100058 td 0xfffffe00262fc000 cpustop_handler() at cpustop_handler+0x28 ipi_nmi_handler() at ipi_nmi_handler+0x3d trap() at trap+0x2ea nmi_calltrap() at nmi_calltrap+0x8 --- tr...

I'm running a few servers sitting on top of a NetAPP file server ? everything runs great, but periodically I'm getting: nfs_getpages: error 13 vm_fault: pager read error, pid 11355 (https) errors on my screen ? not always same pid ? the annoying part is that it seems to always affect the same jail that is running .. if I shutdown all jails on that physical server, everything shuts down

...currentldt = 0x50 spin locks held: cpuid = 7 curthread = 0xc6795af0: pid 11 "idle: cpu7" curpcb = 0xe540fd90 fpcurthread = none idlethread = 0xc6795af0: pid 11 "idle: cpu7" APIC ID = 7 currentldt = 0x50 spin locks held: db> show locks db> show alllocks Process 4 (g_down) thread 0xc6797460 (100015) exclusive sleep mutex isp r = 0 (0xc67e0690) locked @ /usr/src/sys/cam/cam_periph.h:182 db> show lockedvnods Locked vnodes 0xcb090160: tag ufs, type VDIR usecount 1, writecount 0, refcount 3 mountedhere 0 flags () v_object 0xcaa70c1c ref...