Re: kern/41189: kernel panic xen dom0 using mke2fs & WAPBL

[Jason White <jdwhite%iastate.edu@localhost>]

The following reply was made to PR kern/41189; it has been noted by GNATS.

From: Jason White <jdwhite%iastate.edu@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/41189: kernel panic xen dom0 using mke2fs & WAPBL
Date: Thu, 16 Apr 2009 16:47:18 -0500

 # uname -a
 NetBSD xen-2.its.iastate.edu 5.0_RC4 NetBSD 5.0_RC4 (XEN3_DOM0) #0: Wed Apr 15 
23:03:24 PDT 2009  
builds@wb28:/home/builds/ab/netbsd-5/amd64/200904150002Z-obj/home/builds/ab/netbsd-5/src/sys/arch/amd64/compile/XEN3_DOM0
 amd64
 
 # mke2fs -V
 mke2fs 1.40.7 (28-Feb-2008)
         Using EXT2FS Library version 1.40.7
 
 # mke2fs -v -I 128 /dev/sd0m
 [...]
 panic: kernel diagnostic assertion "LIST_EMPTY(&vp->v_dirtyblkhd)" 
 failed: file "/home/builds/ab/netbsd-5/src/sys/kern/vfs_subr.c", line 872
 fatal breakpoint trap in supervisor mode
 trap type 1 code 0 rip ffffffff804bfded cs e030 rflags 246 cr2  
 7f7ffdfdc000 cpl 0 rsp ffffa0001e8aa960
 Stopped in pid 66.1 (mke2fs) at netbsd:breakpoint+0x5:  leave
 breakpoint() at netbsd:breakpoint+0x5
 panic() at netbsd:panic+0x242
 __kernassert() at netbsd:__kernassert+0x2d
 vinvalbuf() at netbsd:vinvalbuf+0x206
 spec_close() at netbsd:spec_close+0x8a
 VOP_CLOSE() at netbsd:VOP_CLOSE+0x29
 vn_close() at netbsd:vn_close+0x51
 closef() at netbsd:closef+0x68
 fd_close() at netbsd:fd_close+0x134
 syscall() at netbsd:syscall+0xb4
 ds          0xa970
 es          0x121c
 fs          0xa970
 gs          0x12f7
 rdi         0
 rsi         0x1
 rbp         0xffffa0001e8aa960
 rbx         0xffffa0001e8aa970
 rdx         0
 rcx         0
 rax         0x1
 r8          0xffffffff80b56000  cpu_info_primary
 r9          0x1
 r10         0xffffa0001e8aa880
 r11         0xffffffff804fd2b0  xenconscn_putc
 r12         0x104
 r13         0xffffffff809f62d8
 r14         0xffffa0001e8aab20
 r15         0
 rip         0xffffffff804bfded  breakpoint+0x5
 cs          0xe030
 rflags      0x246
 rsp         0xffffa0001e8aa960
 ss          0xe02b
 netbsd:breakpoint+0x5:  leave
 db> show uvm
 Current UVM status:
   pagesize=4096 (0x1000), pagemask=0xfff, pageshift=12
   60079 VM pages: 12663 active, 0 inactive, 265 wired, 2068 free
   pages  7293 anon, 3389 file, 2246 exec
   freemin=256, free-target=341, wired-max=20026
   faults=55481, traps=54788, intrs=111349, ctxswitch=56744
   softint=47907, syscalls=157734, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=814(814), anget(retrys)=16556(0), amapcopy=5401
     neighbor anon/obj pg=13847/78621, gets(lock/unlock)=22813/814
     cases: anon=8604, anoncow=7942, obj=18376, prcopy=4437, przero=13214
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=1, swpgavail=131071
     swpages=131071, swpginuse=0, swpgonly=0, paging=0
 db> show event
 evcnt type 0: vmcmd kills = 203
 evcnt type 0: vmcmd extends = 6
 evcnt type 0: vmcmd calls = 1722
 evcnt type 0: bus_dma bounces = 92383
 evcnt type 0: bus_dma loads = 181023
 evcnt type 0: bus_dma nbouncebufs = 3104
 evcnt type 0: softint net/0 = 10311
 evcnt type 0: softint bio/0 = 17963
 evcnt type 0: softint clk/0 = 3667
 evcnt type 0: softint ser/0 = 786
 evcnt type 0: callout late/0 = 15
 evcnt type 0: crosscall unicast = 3
 evcnt type 0: namecache entries collected = 185
 evcnt type 0: namecache under scan target = 151
 evcnt type 1: vcpu0 xencons = 1
 evcnt type 1: vcpu0 ioapic0 pin 16 = 2593
 evcnt type 1: vcpu0 ioapic1 pin 14 = 88838
 evcnt type 1: vcpu0 ioapic0 pin 21 = 19
 evcnt type 1: vcpu0 ioapic0 = 8
 evcnt type 1: vcpu0 clock = 17389
 evcnt type 1: vcpu0 xenbus = 1046
 evcnt type 1: vcpu0 xbd1.1 = 1341
 evcnt type 1: vcpu0 xvif1.0 = 114
 db> show all pool
 POOL CACHEfatal protection fault in supervisor mode
 trap type 4 code 0 rip ffffffff806c025a cs e030 rflags 10202 cr2  
 7f7ffdfdc000 cpl 8 rsp ffffa0001e8aa2f8
 kernel: protection fault trap, code=0
 Faulted in DDB; continuing...
 db>