Re: kern/56900 (panic in uvm_map_findspace)

[Rin Okuyama <rokuyama.rk%gmail.com@localhost>]

Unfortunately, similar panic still takes place on sh3.
Seems like something wrong in sh3/pmap...

----
# cd /usr/tests && atf-run | atf-report
...
bin/sh/t_here (17/926): 11 test cases
    do_simple: [9.487045s] Passed.
    end_markers: [ 2036.0781860] panic: kernel diagnostic assertion "!topdown || hint <= orig_hint" failed: file "../../../../uvm/uvm_map.c", line 1795 map=0x8fe48d68 hint=0x7defb000 orig_hint=0x75172000 length=0x1000 uobj=0x8fd5eaa0 uoffset=0 align=0 flags=0x101 entry=0x8dfc6864 (uvm_map_findspace line 2011)
[ 2036.3769339] cpu0: Begin traceback...
[ 2036.4219435] db_panic() at netbsd:vpanic+0x106
[ 2036.4721571] vpanic() at netbsd:kern_assert+0x24
[ 2036.5313130] kern_assert() at netbsd:uvm_findspace_invariants+0x60
[ 2036.6094391] uvm_findspace_invariants() at netbsd:uvm_map_findspace+0x1fc
[ 2036.6875748] uvm_map_findspace() at netbsd:uvm_map_prepare+0x1ac
[ 2036.7557294] uvm_map_prepare() at netbsd:uvm_map+0xaa
[ 2036.8164256] uvm_map() at netbsd:uvm_mmap+0x166
[ 2036.8750653] uvm_mmap() at netbsd:sys_mmap+0x250
[ 2036.9263064] sys_mmap() at netbsd:syscall+0xba
[ 2036.9844405] syscall() at 8c0001b2
[ 2037.0204721] <EXPEVT 160; SSR=00000100> at 7515ad38
[ 2037.0790696] [trapframe 0x3]
[ 2037.1157066]    sr=00000100   gbr=00000000    pc=7515ad38     pr=7515ad0c
[ 2037.1973148]    r0=000000c5    r1=00000028    r2=00000000     r3=00000000
[ 2037.2789350]    r4=00000000    r6=00001000    r7=00000001     r8=00000001
[ 2037.3605556]    r5=7514a400    r9=7ff32f90   r10=7ff32ee8    r11=7514a4bc
[ 2037.4421819]   r12=75170ec8   r13=7514a47c   r14=00000003 sp=r15=7ff32e28
[ 2037.5237959] cpu0: End traceback...
Stopped in pid 26312.26312 (sh) at      netbsd:cpu_Debugger+0x6:        mov
r14, r15
db>
----

Thanks,
rin