Re: kern/38956: rb tree corruption?

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

martin%duskware.de@localhost wrote:

> >Synopsis:       rb tree corruption?

> trace:
> rb_tree_iterate()
> uvm_pagefree()
> genfs_do_putpages()
> genfs_putpages()
 :

I see the similar hang (not panic) on mac68k GENERIC kernel
(of cource it's UP) during fsck_ffs(8) on boot:

---
 :
/dev/rsd0a: BLK(S) MISSING IN BIT MAPS (SALVAGED)
/dev/rsd0a: 1514 files, 20257 used, 132806 free (654 frags, 16519 blocks, 0.4% 
fragmentation)
/dev/rsd0a: MARKING FILE SYSTEM CLEAN

 [hang here; send break]

Stopped in pid 8.1 (fsck_ffs) at        netbsd:cpu_Debugger+0x6:        \
unlk    a6
db> tr
cpu_Debugger(8,c2000,159b80,96700c,967000) + 6
zstty_stint(96700c,0) + 146
zsc_intr_hard(967000,0,707150,4941a74,2317a4) + 106
zshard(967000,4941a9c,356a,70,0) + 12
intr_dispatch(70) + 3a
intrhand(?)
rb_tree_iterate(3e7b318,707150,0,0,c2000) + a
rb_tree_remove_node(3e7b318,707150,0,c2000,0) + ce
uvm_pagefree(707150) + aa
genfs_do_putpages(3e7b300,0,0,0,0) + a02
genfs_putpages(4941c58,3e7b300,270dfc,3e7b300,0) + 22
VOP_PUTPAGES(3e7b300,0,0,0,0,1a,3e7b300) + 48
vinvalbuf(3e7b300,0,3e66ebc,3e69020,0,0) + 42
ffs_reload(5171000,3e66ebc,3e69020) + 470
ffs_mount(5171000,167b2,9c3600,4941f00,4941edc) + 484
VFS_MOUNT(5171000,167b2,9c3600,4941f00) + 1e
do_sys_mount(3e69020,0,167b4,167b2,55001) + 480
compat_40_sys_mount(3e69020,4941f38,4941f78) + 24
syscall_plain(15,3e69020,4941fb4,2e,12af3) + bc
syscall(15) + 60
trap0() + e
db> 

---
Izumi Tsutsui