Fatal kernel trap - "data storage interrupt" - on recent 7-STABLE

Mon Jan 26 21:11:04 PST 2009

Hi all,

Sadly, I'm still seeing this panic on the G4 system, updated 7-STABLE...

Should I report this to the stable mailing list (I imagine I'll get told
it's a PPC thing, but I don't really know!)? Is there any way I can get
my Apple USB keyboard to work when dropped to GDB? Kernel dumps don't
yet work on PowerPC, right?

Am I perhaps the only one running 7-STABLE on a G4 using gmirror?

On Sun, 2009-01-18 at 16:52 +1100, Nick Withers wrote:
> On Sun, 2009-01-18 at 16:18 +1100, Nick Withers wrote:
> > Hi all,
> > 
> > My lofty plans for testing PPC ATA DMA have been thwarted somewhat by my
> > bringing my G4 box from 7-STABLE / 7.1-PRERELEASE as of around the
> > 2008-11-26 to 7-STABLE of around the 2009-01-15, where I'm now seeing,
> > after a few hours of uptime (transcribed from the screen):
> > ____
> > 
> > fatal kernel trap:
> > 
> > 	exception	= 0x3 (data storage interrupt)
> > 	virtual address	= 0x4200009c
> > 	srr0		= 0x2175b0
> > 	srr1		= 0x9032
> > 	curthread	= 0x1deed20
> > 		pid = 40264, comm = find
> > 
> > [thread pid 40264  tid 100126 ]
> > Stopped at	0x2175b0:	lwarx r10, r0, r9,
> > db>
> > ____
> > 
> > I've had it twice now (I've been off-site a lot, sure I could've had it
> > more often if I were quicker rebooting the thing), with only the thread
> > information changing on the second - same exception, virtual address,
> > srr0 and srr1.
> > 
> > The keyboard is non-responsive at this point and I have to hard reset
> > it.
> > 
> > I've just switched back to running the old (i.e, November 2008 7-STABLE)
> > kernel and am expecting not to see it again...
> > 
> > Boot dmesg:
> > ____
> 
> (snip)
> 
> > ____
> > 
> > I'm not much of a kernel debugger, I'm afraid... I'm sure I've seen
> > information on how to translate kernel addresses into the location of
> > the code in the kernel but am doing a poor job of digging it up.
> 
> Hmmm... Is the following useful?
> ____
> 
> %nm /boot/kernel/kernel | sort | grep ^0021 
> 0021008c t modlist_lookup2
> 0021016c T linker_ctf_get
> 002101f4 T linker_file_function_listall
> 0021028c t linker_debug_search_symbol
> 002103f4 T linker_ddb_search_symbol
> 00210424 t linker_debug_symbol_values
> 002104f4 T linker_ddb_symbol_values
> 00210524 t modlist_newmodule
> 002105cc t linker_addmodules
> 002106a0 t linker_file_add_dependency
> 00210768 t sysctl_kern_function_list_iterate
> 002107d0 t linker_lookup_file
> 00210b08 t linker_strdup
> 00210b74 t linker_basename
> 00210bd8 t linker_find_file_by_name
> 00210ca4 t linker_debug_search_symbol_name
> 00210d34 T linker_ddb_search_symbol_name
> 00210d64 T linker_make_file
> 00210ed0 T linker_add_class
> 00210f5c t sysctl_kern_function_list
> 0021117c T kldfirstmod
> 0021137c T kldstat
> 002115c8 T kldnext
> 0021173c T linker_file_foreach
> 00211880 T kldfind
> 00211a04 T linker_search_symbol_name
> 00211b30 T linker_file_lookup_set
> 00211cd0 t linker_file_register_modules
> 00211df4 t linker_init_kernel_modules
> 00211e2c t linker_file_register_sysctls
> 00211f58 T linker_file_unload
> 00212604 t linker_preload
> 00212d28 T kern_kldunload
> 00212edc T kldunloadf
> 00212f28 T kldunload
> 00212f60 T linker_release_module
> 00213104 t linker_load_module
> 00213dc4 T linker_load_dependencies
> 00214010 T kern_kldload
> 002141c4 T kldload
> 00214280 T linker_reference_module
> 00214438 t linker_file_lookup_symbol_internal
> 0021463c T linker_file_lookup_symbol
> 00214788 T linker_ddb_lookup
> 00214858 T kldsym
> 00214bf8 t unlock_lockmgr
> 00214c18 t lock_lockmgr
> 00214c38 t db_show_lockmgr
> 00214d18 T lockmgr_chain
> 00214e34 T lockmgr_printinfo
> 00214ed0 T lockdestroy
> 00214f00 T lockinit
> 00214fc0 t acquire
> 002151b8 T lockwaiters
> 002152b0 T lockcount
> 002153b4 T lockstatus
> 00215514 T transferlockers
> 002156ac T _lockmgr
> 00216070 t lf_blocks
> 00216114 t lf_insert_lock
> 002161bc t lf_getblock
> 00216288 t graph_add_indices
> 00216354 t graph_assign_indices
> 00216408 t lf_init
> 00216500 t lf_clearremotesys_iterator
> 00216568 t lf_remove_edge
> 002166a8 t lf_remove_incoming
> 002166fc t lf_remove_outgoing
> 00216750 t lf_alloc_vertex
> 00216870 t lf_add_edge
> 00216cb4 t lf_add_incoming
> 00216d50 t lf_alloc_lock
> 00216e78 T lf_countlocks
> 00216fbc T lf_iteratelocks_vnode
> 0021724c t lf_free_lock
> 00217570 T lf_purgelocks
> 00217ad8 T lf_iteratelocks_sysid
> 00217e44 T lf_clearremotesys
> 00217e80 t lf_update_dependancies
> 0021808c t lf_set_end
> 002180cc t lf_set_start
> 00218164 t lf_activate_lock
> 002185d0 t lf_cancel_lock
> 00218754 T lf_advlockasync
> 00219b24 T lf_advlock
> 00219b8c T malloc_last_fail
> 00219bbc t kmeminit
> 00219e60 t db_show_malloc
> 00219f58 T malloc_desc2type
> 00219fcc T malloc_type_freed
> 0021a06c t malloc_type_zone_allocated
> 0021a154 T malloc_type_allocated
> 0021a190 T malloc
> 0021a2b4 T malloc_init
> 0021a3d8 T free
> 0021a4bc T malloc_type_list
> 0021a754 t sysctl_kern_malloc_stats
> 0021abdc T realloc
> 0021ad24 T reallocf
> 0021ad8c T malloc_uninit
> 0021af70 t mb_ctor_mbuf
> 0021aff4 t mb_dtor_clust
> 0021b010 t mb_ctor_pack
> 0021b084 t mb_reclaim
> 0021b110 t tunable_mbinit
> 0021b194 t sysctl_nmbjumbo16
> 0021b238 t sysctl_nmbjumbo9
> 0021b2dc t sysctl_nmbjumbop
> 0021b380 t mbuf_init
> 0021b64c t mbuf_jumbo_free
> 0021b684 t mbuf_jumbo_alloc
> 0021b6dc t mb_zfini_pack
> 0021b71c t mb_zinit_pack
> 0021b78c t mb_dtor_mbuf
> 0021b7d4 t mb_dtor_pack
> 0021b834 t mb_ctor_clust
> 0021b94c t sysctl_nmbclusters
> 0021bb7c t sysctl_hw_usermem
> 0021bbd0 t sysctl_hw_realmem
> 0021bc18 t sysctl_hw_physmem
> 0021bc60 t sysctl_kern_arnd
> 0021bce4 t sysctl_hostname
> 0021bf24 t sysctl_kern_securelvl
> 0021c274 t modevent_nop
> 0021c2b8 T module_reference
> 0021c2e0 T module_lookupbyid
> 0021c338 T module_getid
> 0021c358 T module_getfnext
> 0021c378 T module_setspecific
> 0021c39c T module_file
> 0021c3bc t module_init
> 0021c440 T module_lookupbyname
> 0021c4b4 T module_unload
> 0021c60c T module_release
> 0021c7a0 T module_register
> 0021ca74 t module_shutdown
> 0021cc5c T modfind
> 0021cda4 T modstat
> 0021d014 T modfnext
> 0021d168 T modnext
> 0021d2e8 T module_register_init
> 0021d5d8 T mtx_pool_find
> 0021d61c T mtx_pool_alloc
> 0021d65c t mtx_pool_initialize
> 0021d734 t mtx_pool_setup_static
> 0021d790 T mtx_pool_destroy
> 0021d818 T mtx_pool_create
> 0021d8c4 t mtx_pool_setup_dynamic
> 0021d90c t unlock_spin
> 0021d92c t lock_spin
> 0021d94c t db_show_mtx
> 0021daf4 T thread_lock_set
> 0021db54 T thread_lock_unblock
> 0021db8c T _mtx_unlock_spin_flags
> 0021dbe0 T mtx_init
> 0021dc88 T mtx_sysinit
> 0021dccc T _mtx_unlock_sleep
> 0021dd84 t unlock_mtx
> 0021de04 T thread_lock_block
> 0021de88 T _mtx_lock_sleep
> 0021dfbc t lock_mtx
> 0021e038 T mtx_destroy
> 0021e0d8 T _mtx_lock_spin_flags
> 0021e148 T mutex_init
> 0021e280 T _thread_lock_flags
> 0021e494 T _mtx_trylock
> 0021e55c T _mtx_lock_flags
> 0021e5f4 T _mtx_unlock_flags
> 0021e678 T ntp_update_second
> 0021e9f0 t ntp_init
> 0021ea2c t hardupdate
> 0021ee04 t ntp_gettime1
> 0021eec4 t ntp_sysctl
> 0021ef30 T kern_adjtime
> 0021f190 T adjtime
> 0021f238 T ntp_gettime
> 0021f34c T ntp_adjtime
> 0021f8d8 T physio
> 0021fdb4 T pmc_cpu_is_disabled
> 0021fdd4 T pmc_cpu_is_logical
> 0021fdf4 T priv_check_cred
> 0021fe94 T suser_cred
> 0021fecc T suser
> 0021ff04 T priv_check
> 0021ff3c T pargs_hold
> 0021ff78 t pgrpdump
> %kldstat
> Id Refs Address    Size     Name
>  1    8 0x100000 4a2d2c   kernel
>  2    1 0x5a3000 2dabc    geom_mirror.ko
>  3    1 0x5d1000 167f8    ugen.ko
>  4    1 0xd07a4000 15000    nullfs.ko
>  5    1 0xd07bc000 26000    nfslockd.ko
>  6    1 0xd07e2000 5c000    nfsclient.ko
>  7    1 0xd0846000 27000    krpc.ko
> ____
> 
> > Anyone able to give me a pointer or two?
> > 
> > Thanks!
-- 
Nick Withers
email: nick at nickwithers.com
Web: http://www.nickwithers.com
Mobile: +61 414 397 446
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