Facing kernel panic during early boot from 12.0 ALPHA9

Rajesh Kumar rajfbsd at gmail.com
Tue Oct 23 14:20:09 UTC 2018


Hi Mark,

Please find attached the "sysctl vm" output with ALPHA8.

On Tue, Oct 23, 2018 at 7:21 PM Mark Johnston <markj at freebsd.org> wrote:

> On Tue, Oct 23, 2018 at 07:10:02PM +0530, Rajesh Kumar wrote:
> > Hi Mark,
> >
> > > From the db> prompt, could you please run "show page" and "show pageq",
> > > and post the output?
> >
> > The system gets hung when it runs to db prompt. I only have the option to
> > force shutdown at that point.  Is there any other way, I can collect what
> > you need?
>
> Could you instead provide output from "sysctl vm" while the system has
> booted ALPHA8?
>
> > On Tue, Oct 23, 2018 at 7:05 PM Mark Johnston <markj at freebsd.org> wrote:
> >
> > > On Tue, Oct 23, 2018 at 05:43:15PM +0530, Rajesh Kumar wrote:
> > > > Hi,
> > > >
> > > > I have a amd64 based board, where I could able to install upto
> FreeBSD
> > > 12.0
> > > > ALPHA8 without issues. But starting ALPHA9, I start to see the below
> > > panic
> > > > during early boot.  Looks like some sleep at unwanted place.  I am
> using
> > > > the memstick image from dowload page.
> > > >
> > > > Please let me know if you need any details.
> > >
> > > I'm having trouble seeing what might have changed between ALPHA8 and 9
> > > to cause this.  At this point we've initialized the vm_phys page
> > > allocator, so we're not constrained by vm.boot_pages.
> > >
> > > From the db> prompt, could you please run "show page" and "show pageq",
> > > and post the output?
> > >
>
-------------- next part --------------
vm.vmtotal: 
System wide totals computed every five seconds: (values in kilobytes)
===============================================
Processes:		(RUNQ: 1 Disk Wait: 0 Page Wait: 0 Sleep: 24)
Virtual Memory:		(Total: 538514992K Active: 538502056K)
Real Memory:		(Total: 48344K Active: 47656K)
Shared Virtual Memory:	(Total: 23912K Active: 11004K)
Shared Real Memory:	(Total: 9888K Active: 9224K)
Free Memory:	64594236K
vm.loadavg: { 0.14 0.06 0.02 }
vm.v_free_min: 102837
vm.v_free_target: 347448
vm.v_free_reserved: 21300
vm.v_inactive_target: 521172
vm.v_pageout_free_min: 34
vm.swap_enabled: 1
vm.overcommit: 0
vm.domain.0.pidctrl.kdd: 8
vm.domain.0.pidctrl.kid: 4
vm.domain.0.pidctrl.kpd: 3
vm.domain.0.pidctrl.bound: 5559168
vm.domain.0.pidctrl.interval: 100
vm.domain.0.pidctrl.setpoint: 347448
vm.domain.0.pidctrl.ticks: 2146949887
vm.domain.0.pidctrl.output: 0
vm.domain.0.pidctrl.input: 16148569
vm.domain.0.pidctrl.derivative: 34
vm.domain.0.pidctrl.integral: 0
vm.domain.0.pidctrl.olderror: -15801155
vm.domain.0.pidctrl.error: -15801121
vm.domain.0.stats.free_severe: 62068
vm.domain.0.stats.free_min: 102837
vm.domain.0.stats.free_reserved: 21300
vm.domain.0.stats.free_target: 347448
vm.domain.0.stats.inactive_target: 521172
vm.domain.0.stats.unswppdpgs: 0
vm.domain.0.stats.unswappable: 0
vm.domain.0.stats.laundpdpgs: 0
vm.domain.0.stats.laundry: 0
vm.domain.0.stats.inactpdpgs: 0
vm.domain.0.stats.inactive: 525
vm.domain.0.stats.actpdpgs: 273
vm.domain.0.stats.active: 4886
vm.domain.0.stats.free_count: 16148553
vm.kvm_free: 2195460190208
vm.kvm_size: 2199023251456
vm.pmap.ad_emulation_superpage_promotions: 0
vm.pmap.num_superpage_accessed_emulations: 0
vm.pmap.num_accessed_emulations: 0
vm.pmap.num_dirty_emulations: 0
vm.pmap.pdpe.demotions: 3
vm.pmap.pde.promotions: 797
vm.pmap.pde.p_failures: 0
vm.pmap.pde.mappings: 0
vm.pmap.pde.demotions: 390
vm.pmap.pcid_save_cnt: 0
vm.pmap.pti: 0
vm.pmap.invpcid_works: 0
vm.pmap.pcid_enabled: 0
vm.pmap.pg_ps_enabled: 1
vm.pmap.pat_works: 1
vm.swap_idle_threshold2: 10
vm.swap_idle_threshold1: 2
vm.swap_idle_enabled: 0
vm.reserv.reclaimed: 0
vm.reserv.partpopq: 
DOMAIN    LEVEL     SIZE  NUMBER

     0,      -1, 251088K,    128

vm.reserv.fullpop: 121
vm.reserv.freed: 7952
vm.reserv.broken: 0
vm.ndomains: 1
vm.phys_locality: 
0: -1 

vm.phys_segs: 
SEGMENT 0:

start:     0x10000
end:       0x9f000
domain:    0
free list: 0xffffffff8204fe30

SEGMENT 1:

start:     0x100000
end:       0x1000000
domain:    0
free list: 0xffffffff8204fe30

SEGMENT 2:

start:     0x1000000
end:       0x270f000
domain:    0
free list: 0xffffffff8204fbc0

SEGMENT 3:

start:     0x2717000
end:       0x274c000
domain:    0
free list: 0xffffffff8204fbc0

SEGMENT 4:

start:     0x2800000
end:       0x728e0000
domain:    0
free list: 0xffffffff8204fbc0

SEGMENT 5:

start:     0x7290a000
end:       0x7877d000
domain:    0
free list: 0xffffffff8204fbc0

SEGMENT 6:

start:     0x79e78000
end:       0x79eac000
domain:    0
free list: 0xffffffff8204fbc0

SEGMENT 7:

start:     0x7a681000
end:       0x7c000000
domain:    0
free list: 0xffffffff8204fbc0

SEGMENT 8:

start:     0x100000000
end:       0x1015cb3000
domain:    0
free list: 0xffffffff8204fbc0

vm.phys_free: 
DOMAIN 0:

FREE LIST 0:

  ORDER (SIZE)  |  NUMBER
                |  POOL 0  |  POOL 1
--            -- --      -- --      --
  12 ( 16384K)  |    3926  |       0
  11 (  8192K)  |       0  |       1
  10 (  4096K)  |       1  |       1
   9 (  2048K)  |       1  |       0
   8 (  1024K)  |       0  |       0
   7 (   512K)  |       0  |       0
   6 (   256K)  |       0  |       1
   5 (   128K)  |       0  |       1
   4 (    64K)  |       1  |       1
   3 (    32K)  |       0  |       0
   2 (    16K)  |       1  |       1
   1 (     8K)  |       0  |       0
   0 (     4K)  |       1  |       1

FREE LIST 1:

  ORDER (SIZE)  |  NUMBER
                |  POOL 0  |  POOL 1
--            -- --      -- --      --
  12 ( 16384K)  |       0  |       0
  11 (  8192K)  |       0  |       0
  10 (  4096K)  |       0  |       0
   9 (  2048K)  |       0  |       0
   8 (  1024K)  |       0  |       0
   7 (   512K)  |       0  |       0
   6 (   256K)  |       1  |       0
   5 (   128K)  |       1  |       0
   4 (    64K)  |       2  |       0
   3 (    32K)  |       1  |       0
   2 (    16K)  |       0  |       0
   1 (     8K)  |       1  |       0
   0 (     4K)  |       0  |       0

vm.max_wired: 5406334
vm.background_launder_max: 20480
vm.background_launder_rate: 4096
vm.act_scan_laundry_weight: 3
vm.pageout_oom_seq: 12
vm.pageout_lock_miss: 0
vm.disable_swapspace_pageouts: 0
vm.lowmem_period: 10
vm.pageout_update_period: 600
vm.panic_on_oom: 0
vm.page_blacklist: 
vm.tryrelock_restart: 0
vm.boot_pages: 106
vm.old_msync: 0
vm.old_mlock: 0
vm.stats.object.bypasses: 1089
vm.stats.object.collapses: 6141
vm.stats.vm.v_pdpages: 273
vm.stats.vm.v_tcached: 0
vm.stats.vm.v_cache_count: 0
vm.stats.vm.v_free_severe: 62068
vm.stats.vm.v_interrupt_free_min: 2
vm.stats.vm.v_pageout_free_min: 34
vm.stats.vm.v_laundry_count: 0
vm.stats.vm.v_inactive_count: 525
vm.stats.vm.v_inactive_target: 521172
vm.stats.vm.v_active_count: 4886
vm.stats.vm.v_wire_count: 116806
vm.stats.vm.v_free_count: 16148549
vm.stats.vm.v_free_min: 102837
vm.stats.vm.v_free_target: 347448
vm.stats.vm.v_free_reserved: 21300
vm.stats.vm.v_page_count: 16307784
vm.stats.vm.v_page_size: 4096
vm.stats.vm.v_kthreadpages: 0
vm.stats.vm.v_rforkpages: 114
vm.stats.vm.v_vforkpages: 8170
vm.stats.vm.v_forkpages: 188870
vm.stats.vm.v_kthreads: 148
vm.stats.vm.v_rforks: 2
vm.stats.vm.v_vforks: 227
vm.stats.vm.v_forks: 1792
vm.stats.vm.v_tfree: 845159
vm.stats.vm.v_pfree: 156312
vm.stats.vm.v_dfree: 0
vm.stats.vm.v_pdshortfalls: 0
vm.stats.vm.v_pdwakeups: 0
vm.stats.vm.v_reactivated: 0
vm.stats.vm.v_intrans: 0
vm.stats.vm.v_vnodepgsout: 0
vm.stats.vm.v_vnodepgsin: 3751
vm.stats.vm.v_vnodeout: 0
vm.stats.vm.v_vnodein: 511
vm.stats.vm.v_swappgsout: 0
vm.stats.vm.v_swappgsin: 0
vm.stats.vm.v_swapout: 0
vm.stats.vm.v_swapin: 0
vm.stats.vm.v_ozfod: 0
vm.stats.vm.v_zfod: 208334
vm.stats.vm.v_cow_optim: 74
vm.stats.vm.v_cow_faults: 77238
vm.stats.vm.v_io_faults: 407
vm.stats.vm.v_vm_faults: 323694
vm.stats.sys.v_soft: 1053
vm.stats.sys.v_intr: 2814
vm.stats.sys.v_syscall: 823020
vm.stats.sys.v_trap: 326126
vm.stats.sys.v_swtch: 37525
vm.v_free_severe: 62068
vm.max_kernel_address: 18446744073709547520
vm.min_kernel_address: 18446741874686296064
vm.kstacks: 1253
vm.kstack_cache_size: 128
vm.zone_warnings: 1
vm.zone_count: 216
vm.debug.skipped: 0
vm.debug.trashed: 0
vm.debug.divisor: 1
vm.nswapdev: 1
vm.dmmax: 32
vm.swap_fragmentation: 
Free space on device ada0p3:
number of maximal free ranges: 1
largest free range: 986107
average maximal free range size: 986107
number of maximal free ranges of different sizes:
               count  |  size range
               -----  |  ----------
                   1  |  986107

vm.swap_async_max: 4
vm.swap_maxpages: 130462416
vm.swzone: 1108930536
vm.swap_reserved: 626663424
vm.swap_total: 4039102464
vm.phys_pager_cluster: 1024
vm.kmem_map_free: 66499305472
vm.kmem_map_size: 297377792
vm.kmem_size_scale: 1
vm.kmem_size_max: 1319413950874
vm.kmem_size_min: 0
vm.kmem_zmax: 65536
vm.kmem_size: 66796683264
vm.md_malloc_wait: 0


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