Date: Sun, 18 Jan 2009 16:52:46 +1100 From: Nick Withers <nick@nickwithers.com> To: freebsd-ppc@freebsd.org Subject: Re: Fatal kernel trap - "data storage interrupt" - on recent 7-STABLE Message-ID: <1232257966.67062.36.camel@localhost> In-Reply-To: <1232255895.67062.27.camel@localhost> References: <1232255895.67062.27.camel@localhost>
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--=-6ZZk1Xdm+my3SpHJyveb Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2009-01-18 at 16:18 +1100, Nick Withers wrote: > Hi all, >=20 > 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): > ____ >=20 > fatal kernel trap: >=20 > exception =3D 0x3 (data storage interrupt) > virtual address =3D 0x4200009c > srr0 =3D 0x2175b0 > srr1 =3D 0x9032 > curthread =3D 0x1deed20 > pid =3D 40264, comm =3D find >=20 > [thread pid 40264 tid 100126 ] > Stopped at 0x2175b0: lwarx r10, r0, r9, > db> > ____ >=20 > 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. >=20 > The keyboard is non-responsive at this point and I have to hard reset > it. >=20 > I've just switched back to running the old (i.e, November 2008 7-STABLE) > kernel and am expecting not to see it again... >=20 > Boot dmesg: > ____ (snip) > ____ >=20 > 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=20 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? >=20 > Thanks! --=20 Nick Withers email: nick@nickwithers.com Web: http://www.nickwithers.com Mobile: +61 414 397 446 --=-6ZZk1Xdm+my3SpHJyveb Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (FreeBSD) iEYEABECAAYFAklyw64ACgkQ3wcG/Pf4WrjVDQCfYwi4XzmcCtbLef28oBEtcHan ORkAn2U1uLMDYSMRNjM6GuCXMi33wScw =o7Tb -----END PGP SIGNATURE----- --=-6ZZk1Xdm+my3SpHJyveb--
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