page fault on 1.2.0-RELEASE
Matthew Dillon
dillon at apollo.backplane.com
Tue Jun 14 09:22:21 PDT 2005
:vm_page_startup:
: first_page 0x1
: page_range 11
: npages -2046298669
: end -27020983583899648
: new_end -27020983583903744
: vm_page_array 0xc081a000
: mapped 0xc081b000
Something is seriously broken here. Try making them
separate printfs. Also print out the 'total' variable,
vm_page_buckets, vm_page_hash_mask.
:vm_page_startup 2:
: phys_avail[i] 4096
: phys_avail[i+1] 651264
: last_pa 651264
:
:After the first call to vm_add_new_page, I see the panic below which I
:annotated
:
:vm_add_new_page:
: m 0xc081a000
: m->queue 52410
: vpq 0xc052ff88
: flipflop 189185
: vpq->pl 0xc052ff88
Ok, we still have this issue of m->queue being too large. Print
out pa (%08llx), PQ_L2_MASK, PQ_FREE, and m->pc.
I'm beginning to see an issue.
:
:Fatal trap 12: page fault while in kernel mode
:mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
:fault virtual address = 0x2b633
:fault code = supervisor write, page not present
:instruction pointer = 0x8:0xc02f2753
:stack pointer = 0x10:0xc0599ce8
:frame pointer = 0x10:0xc0599d0c
:code segment = base 0x0, limit 0xfffff, type 0x1b
: = DPL 0, pres 1, def32 1, gran 1
:processor eflags = interrupt enabled, resume, IOPL = 0
:current process = 0 (thread0)
:current thread = pri 44 (CRIT)
:interrupt mask = net tty bio cam <- SMP: XXX
:kernel: type 12 trap, code=2
:
:CPU0 stopping CPUs: 0x00000000
: stopped
:Stopped at 0xc02f2753: movl %edi,0(%eax)
:db> trace
:(null)(1000,0,c042ee00,c03f929c,5a4000) at 0xc02f2753 vm_add_new_page
:(null)(5a4000,3fbf8000,c081a000,c0599d98,c01e3f18) at 0xc02f2b77 vm_page_startup
:(null)(0,596c00,5a4000,0,c01398cc) at 0xc02ea62f vm_mem_init
:(null)(596000,0,0,0,0) at 0xc01e3f18 mi_startup
:(null)() at 0xc01398cc begin
:
:--
:Chuck Tuffli
:Agilent Technologies
:
Matthew Dillon
<dillon at xxxxxxxxxxxxx>
More information about the Bugs
mailing list