> Date: Mon, 10 Jan 2022 14:40:50 +0100 > From: Alexander Bluhm <[email protected]> > > On Thu, Jan 06, 2022 at 03:59:55PM +0100, Alexander Bluhm wrote: > > My armv7 regress machine hangs every day in regress/sys/kern/fork-exit. > > Maybe a show uvm provides some information.
Not really. I can reproduce the issue here. But I didn't have ddb.console enabled :(. > Stopped at db_enter: ldrb r15, [r15, r15, ror r15]! > ddb> trace > db_enter > rlv=0xc06bd178 rfp=0xcea1cdd0 > ampintc_irq_handler+0x13c > rlv=0xc05b79c8 rfp=0xcea1ce48 > irq_entry+0x78 > rlv=0xc03ba3f8 rfp=0xcea1ce60 > uaddr_bestfit_insert+0x24 > rlv=0xc0654994 rfp=0xcea1ce78 > uvm_mapent_free_insert+0xa8 > rlv=0xc0657e7c rfp=0xcea1cea0 > uvm_map_fix_space+0x208 > rlv=0xc06577b4 rfp=0xcea1cec8 > uvm_map_kmem_grow+0x154 > rlv=0xc0657044 rfp=0xcea1cf48 > uvm_map+0x3a8 > rlv=0xc071e4d4 rfp=0xcea1cfa8 > uvm_km_thread+0x10c > rlv=0xc064a060 rfp=0xc0a49f50 > Bad frame pointer: 0xc0a49f50 > ddb> show uvm > Current UVM status: > pagesize=4096 (0x1000), pagemask=0xfff, pageshift=12 > 500632 VM pages: 104075 active, 46618 inactive, 1 wired, 217209 free (0 > zero) > min 10% (25) anon, 10% (25) vnode, 5% (12) vtext > freemin=16687, free-target=22249, inactive-target=0, wired-max=166877 > faults=130781614, traps=203912516, intrs=0, ctxswitch=21311421 fpuswitch=0 > softint=11013629, syscalls=208446624, kmapent=20 > fault counts: > noram=0, noanon=0, noamap=0, pgwait=0, pgrele=0 > ok relocks(total)=134851(134889), anget(retries)=83889291(0), > amapcopy=49144586 > neighbor anon/obj pg=11594127/61322987, gets(lock/unlock)=16969535/134901 > cases: anon=73444527, anoncow=10444764, obj=15690652, prcopy=1278833, > przero=29440105 > daemon and swap counts: > woke=0, revs=0, scans=0, obscans=0, anscans=0 > busy=0, freed=0, reactivate=0, deactivate=0 > pageouts=0, pending=0, nswget=0 > nswapdev=1 > swpages=578631, swpginuse=0, swpgonly=0 paging=0 > kernel pointers: > objs(kern)=0xc08b7f38 > >
