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.
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
