Re: try KMGUARD

[Martin Husemann <martin%homeworld.netbsd.org@localhost>]

I just got this on netbsd-6, no kmguard, sparc64:

panic: kernel diagnostic assertion "(pp->pr_curpage == NULL && pp->pr_nitems== 
0) || (pp->pr_curpage != NULL && pp->pr_nitems > 0)" failed: file 
"../../../../kern/subr_pool.c", line 1452

when running the stresskiller test.

Backtrace:

kern_assert(173a878, 173a8b0, 179d2f8, 179d2d8, 5ac, 170b000) at netbsd:kern_ass
ert+0x34                                                                       
pool_get(18b1b80, 2, ff070000000001, 41400000, 41400001, 0) at netbsd:pool_get+0
x42c                                                                           
pool_grow(6765540, 2, 2, 0, 41400000, 0) at netbsd:pool_grow+0x294
pool_get(6765540, 2, ff070000000001, 41401f19, 41400060, 800805) at netbsd:pool_
get+0xa8                                                                       
pool_cache_get_slow(67bdb80, 0, b547b7e8, 0, 2, 0) at netbsd:pool_cache_get_slow
+0x200                                                                         
pool_cache_get_paddr(6765540, 2, 0, 0, 1, 173a878) at netbsd:pool_cache_get_padd
r+0x21c                                                                        
kmem_intr_alloc(80, 2, 0, 0, 0, 173a878) at netbsd:kmem_intr_alloc+0x8c
amap_alloc1(8b327f0, 40, 1, 17bb920, 173a878, 7) at netbsd:amap_alloc1+0xa0
amap_alloc(10, 0, 400000, 0, 0, 0) at netbsd:amap_alloc+0x38               
amap_copy(8c59e30, 8cfa5c0, 2, 41400000, 41400001, 0) at netbsd:amap_copy+0x32c
uvm_fault_internal(8c59e30, 41400000, 2, 0, 41400000, 0) at netbsd:uvm_fault_int
ernal+0xc98                                                                    
data_access_fault(b547bed0, 30, 4070a71c, 41401f19, 41400060, 800805) at netbsd:
data_access_fault+0x100                                                        

and the other cpu:

pool_get(18b1b80, 1, ff070000000001, 0, 0, 0) at netbsd:pool_get+0x3b4
pool_grow(6765540, 1, 40943f4c, 40ffedf1, 40943f4c, 6) at netbsd:pool_grow+0x294
                                                                               
pool_get(6765540, 1, ff070000000001, 40fff708, 8, 0) at netbsd:pool_get+0xa8
pool_cache_get_slow(6765780, 0, b5423888, 0, 1, 0) at netbsd:pool_cache_get_slow
+0x200                                                                         
pool_cache_get_paddr(6765540, 1, 0, 0, 0, 173a878) at netbsd:pool_cache_get_padd
r+0x21c                                                                        
kmem_intr_alloc(80, 1, 0, 0, 0, 0) at netbsd:kmem_intr_alloc+0x8c
kmem_intr_zalloc(80, 1, 0, 0, 0, 0) at netbsd:kmem_intr_zalloc+0x8
kevent1(9, 4, 16f29d0, 0, 40fff708, 8) at netbsd:kevent1+0x220    
sys___kevent50(8ac6c00, b5423dd0, b5423e10, 0, 0, 0) at netbsd:sys___kevent50+0x
2c                                                                             
syscall_plain(b5423ed0, b5423dd0, 40943f4c, 40ffedf1, 40943f4c, 6) at netbsd:sys
call_plain+0x134                                                               


Martin