Re: kern/45718 (processes sometimes get stuck and spin in vm_map)

[rudolf <netbsd%eq.cz@localhost>]

The following reply was made to PR kern/45718; it has been noted by GNATS.

From: rudolf <netbsd%eq.cz@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/45718 (processes sometimes get stuck and spin in vm_map)
Date: Mon, 27 Feb 2012 18:10:10 +0100

 This time 4 lwps in vm_map, 2x sh, 2x xulrunner-bin, all with the same 
 backtrace:
 sleepq_block
 cv_timedwait
 uvm_map_prepare
 uvm_map
 uvm_km_alloc
 pipe_ctor
 pool_cache_get_slow
 pool_cache_get_paddr
 pipe_create
 pipe1
 sys_pipe
 sy_call
 syscall
 
 Current UVM status:
 pagesize=4096, pagemask=0xfff, pageshift=12, ncolors=64
 2015729 VM pages: 445408 active, 0 inactive, 1479 wired, 1481348 free
 pages 135016 anon, 296929 file, 14942 exec
 freemin=512 free-target=682, wired-max=671909
 cpu0:
 faults=7976773, traps=7613655, intrs=6473188, ctxswitch=14547360
 softint=5749848, syscalls=136291738
 cpu1:
 faults=7132353, traps=6663764, intrs=0, ctxswitch=13848441
 softint=2613137, syscalls=103586607
 fault counts:
 noram=0, noanon=0, pgwait=0, pgrele=0
 ok relocks(total)=6605(6638)
 anget(retrys)=1330518(0)
 anapcopy=712393
 neighbor anon/obj pg=77203/1108057, gets(lock/unlock)=507179/6638
 cases: anon=1309558, anoncow=20966, obj=454788, prcopy=52356,
 przero=12489369
 daemon and swap counts:
 nswapdev=1, swpgavail=524457, swpages=524457, all other attributes = 0.
 
 r.