Re: Panic: Kernel page fault with ath0_com_lock held, r211295
On Sun, Aug 15, 2010 at 12:07:13AM +0800, Adrian Chadd wrote: You should be able to revert the ath changes reasonably easy. Would you mind doing that and see if that fixes or contributes to the problem? Will do; I'll report back when I have information to report -- probably within 30 minutes. Peace, david -- David H. Wolfskill da...@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. pgpl8Bj7IMES7.pgp Description: PGP signature
Re: Panic: Kernel page fault with ath0_com_lock held, r211295
You should be able to revert the ath changes reasonably easy. Would you mind doing that and see if that fixes or contributes to the problem? Thanks, Adrian On 14 August 2010 23:29, David Wolfskill da...@catwhisker.org wrote: Previously built @r211278; just build r211295 this morning, and didn't quite pass the smoke test. I'll attach core.txt; here are highlights: FreeBSD localhost 9.0-CURRENT FreeBSD 9.0-CURRENT #89 r211295: Sat Aug 14 07:34:56 PDT 2010 r...@g1-219.catwhisker.org.:/usr/obj/usr/src/sys/CANARY i386 ... Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex ath0_com_lock (ath0_com_lock) r = 0 (0xc896e014) locked @ /usr/src/sys/net80211/ieee80211_scan.c:957 KDB: stack backtrace: db_trace_self_wrapper(c0cb0eda,c53b9aa0,c08d93e5,3bd,0,...) at 0xc04da736 = db_trace_self_wrapper+0x26 kdb_backtrace(3bd,0,,c0f47aac,c53b9ad8,...) at 0xc08c4319 = kdb_backtrace+0x29 _witness_debugger(c0cb3689,c53b9aec,4,1,0,...) at 0xc08d93e5 = _witness_debugger+0x25 witness_warn(5,0,c0ceadbf,c08d0229,c0e04de0,...) at 0xc08da8ee = witness_warn+0x1fe trap(c53b9b78) at 0xc0bd9835 = trap+0x195 calltrap() at 0xc0bc0b9c = calltrap+0x6 --- trap 0xc, eip = 0xc0962604, esp = 0xc53b9bb8, ebp = 0xc53b9bd8 --- amrr_node_init(c8d3c000,c7d18d2e,c7d18d3f,1,c8d37800,...) at 0xc0962604 = amrr_node_init+0x84 ieee80211_sta_join(c8cac000,c896e320,c7d18d00,1,c896e000,...) at 0xc0985c07 = ieee80211_sta_join+0x1f7 sta_pick_bss(c8996800,c8cac000,c0cc54c4,3bd,246,...) at 0xc0993853 = sta_pick_bss+0x113 scan_task(c8996800,1,c0cb27d9,53,c53b9cd8,...) at 0xc099102b = scan_task+0x4bb taskqueue_run(c894e880,c894e898,0,c0ccee5e,0,...) at 0xc08d09d3 = taskqueue_run+0xc3 taskqueue_thread_loop(c896e074,c53b9d28,c0ca8b19,343,c0e04de0,...) at 0xc08d119e = taskqueue_thread_loop+0x6e fork_exit(c08d1130,c896e074,c53b9d28) at 0xc0867348 = fork_exit+0xb8 fork_trampoline() at 0xc0bc0c14 = fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xc53b9d60, ebp = 0 --- Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0962604 stack pointer = 0x28:0xc53b9bb8 frame pointer = 0x28:0xc53b9bd8 code segment = base 0x0, limit 0xf, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 0 (ath0 taskq) panic: from debugger cpuid = 0 KDB: stack backtrace: Uptime: 35s Physical memory: 2031 MB Dumping 94 MB: 79 63 47 31 15 ... Loaded symbols for /boot/kernel/tmpfs.ko #0 doadump () at pcpu.h:231 231 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump () at pcpu.h:231 #1 0xc089166e in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 #2 0xc0891942 in panic (fmt=Variable fmt is not available. ) at /usr/src/sys/kern/kern_shutdown.c:590 #3 0xc04d8037 in db_panic (addr=Could not find the frame base for db_panic. ) at /usr/src/sys/ddb/db_command.c:478 #4 0xc04d8661 in db_command (last_cmdp=0xc0de6a5c, cmd_table=0x0, dopager=1) at /usr/src/sys/ddb/db_command.c:445 #5 0xc04d87ba in db_command_loop () at /usr/src/sys/ddb/db_command.c:498 #6 0xc04da6dd in db_trap (type=12, code=0) at /usr/src/sys/ddb/db_main.c:229 #7 0xc08c407e in kdb_trap (type=12, code=0, tf=0xc53b9b78) at /usr/src/sys/kern/subr_kdb.c:535 #8 0xc0bd931f in trap_fatal (frame=0xc53b9b78, eva=0) at /usr/src/sys/i386/i386/trap.c:936 #9 0xc0bd9843 in trap (frame=0xc53b9b78) at /usr/src/sys/i386/i386/trap.c:326 #10 0xc0bc0b9c in calltrap () at /usr/src/sys/i386/i386/exception.s:166 #11 0xc0962604 in amrr_node_init (ni=0xc8d3c000) at /usr/src/sys/net80211/ieee80211_amrr.c:152 #12 0xc0985c07 in ieee80211_sta_join (vap=0xc8cac000, chan=0xc896e320, se=0xc7d18d00) at ieee80211_ratectl.h:80 #13 0xc0993853 in sta_pick_bss (ss=0xc8996800, vap=0xc8cac000) at /usr/src/sys/net80211/ieee80211_scan_sta.c:1244 #14 0xc099102b in scan_task (arg=0xc8996800, pending=1) at /usr/src/sys/net80211/ieee80211_scan.c:986 #15 0xc08d09d3 in taskqueue_run (queue=0xc894e880, tpp=0xc53b9cd8) at /usr/src/sys/kern/subr_taskqueue.c:240 #16 0xc08d119e in taskqueue_thread_loop (arg=0xc896e074) at /usr/src/sys/kern/subr_taskqueue.c:365 #17 0xc0867348 in fork_exit (callout=0xc08d1130 taskqueue_thread_loop, arg=0xc896e074, frame=0xc53b9d28) at /usr/src/sys/kern/kern_fork.c:843 #18 0xc0bc0c14 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:273 I see that r211295 is fairly recent, but that there were some ath(4)-related commits subsequent (r211299; r211303). While I admit but sketchy knowlegde of the code, I don't see anything glaringly obvious there. I'm certainly willing to test, but I have some more critical domestic priorities for most of the day,
Re: Panic: Kernel page fault with ath0_com_lock held, r211295
On Sun, Aug 15, 2010 at 12:07:13AM +0800, Adrian Chadd wrote: You should be able to revert the ath changes reasonably easy. Would you mind doing that and see if that fixes or contributes to the problem? OK; I reverted by doing this: g1-46(9.0-C)[1] cd /usr/src g1-46(9.0-C)[2] svn merge -c -211295 file:///svn/freebsd/src/base/head --- Reverse-merging r211295 into 'sys': Usys/net80211/ieee80211_node.c Usys/net80211/ieee80211_sta.c g1-46(9.0-C)[3] I then re-built the kernel and rebooted (with the ath(4) card inserted): g1-219(9.0-C)[1] uname -a FreeBSD g1-219.catwhisker.org. 9.0-CURRENT FreeBSD 9.0-CURRENT #90 r211295M: Sat Aug 14 09:30:55 PDT 2010 r...@g1-46.catwhisker.org.:/usr/obj/usr/src/sys/CANARY i386 g1-219(9.0-C)[2] ifconfig xl0: flags=8802BROADCAST,SIMPLEX,MULTICAST metric 0 mtu 1500 options=80009RXCSUM,VLAN_MTU,LINKSTATE ether 00:08:74:e9:c9:41 media: Ethernet autoselect (none) status: no carrier fwe0: flags=8802BROADCAST,SIMPLEX,MULTICAST metric 0 mtu 1500 options=8VLAN_MTU ether 42:4f:c0:2c:30:41 ch 1 dma -1 fwip0: flags=8802BROADCAST,SIMPLEX,MULTICAST metric 0 mtu 1500 lladdr 42.4f.c0.0.7.2c.30.41.a.2.ff.fe.0.0.0.0 iwi0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 2290 ether 00:0e:35:aa:11:ca media: IEEE 802.11 Wireless Ethernet autoselect mode 11g status: associated plip0: flags=8810POINTOPOINT,SIMPLEX,MULTICAST metric 0 mtu 1500 ipfw0: flags=8801UP,SIMPLEX,MULTICAST metric 0 mtu 65536 lo0: flags=8049UP,LOOPBACK,RUNNING,MULTICAST metric 0 mtu 16384 options=3RXCSUM,TXCSUM inet 127.0.0.1 netmask 0xff00 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x7 nd6 options=21PERFORMNUD,AUTO_LINKLOCAL ath0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 2290 ether 00:40:96:a7:a7:01 media: IEEE 802.11 Wireless Ethernet autoselect mode 11g status: associated wlan1: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 ether 00:0e:35:aa:11:ca media: IEEE 802.11 Wireless Ethernet autoselect (autoselect) status: no carrier ssid channel 5 (2432 MHz 11g) country US authmode WPA1+WPA2/802.11i privacy ON deftxkey UNDEF txpower 0 bmiss 24 scanvalid 60 protmode CTS wme roaming MANUAL bintval 0 wlan0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 ether 00:40:96:a7:a7:01 inet 172.17.1.219 netmask 0x broadcast 172.17.255.255 media: IEEE 802.11 Wireless Ethernet OFDM/24Mbps mode 11g status: associated ssid lmdhw-net channel 11 (2462 MHz 11g) bssid 08:10:75:08:8c:1c regdomain FCC indoor ecm authmode OPEN privacy ON deftxkey 1 wepkey 1:40-bit txpower 21 bmiss 7 scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 5 protmode CTS wme burst g1-219(9.0-C)[3] I think that qualifies as working. Thanks! Peace, david -- David H. Wolfskill da...@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. pgp5NRPlpbfHS.pgp Description: PGP signature
Re: Panic: Kernel page fault with ath0_com_lock held, r211295
On Sat, Aug 14, 2010 at 18:47, David Wolfskill da...@catwhisker.org wrote: On Sun, Aug 15, 2010 at 12:07:13AM +0800, Adrian Chadd wrote: You should be able to revert the ath changes reasonably easy. Would you mind doing that and see if that fixes or contributes to the problem? OK; I reverted by doing this: g1-46(9.0-C)[1] cd /usr/src g1-46(9.0-C)[2] svn merge -c -211295 file:///svn/freebsd/src/base/head --- Reverse-merging r211295 into 'sys': U sys/net80211/ieee80211_node.c U sys/net80211/ieee80211_sta.c g1-46(9.0-C)[3] I then re-built the kernel and rebooted (with the ath(4) card inserted): [..] I think that qualifies as working. Indeed, please try attached patch. -- Bernhard ratectl_node_init.diff Description: Binary data ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: Panic: Kernel page fault with ath0_com_lock held, r211295
On Sat, Aug 14, 2010 at 07:05:40PM +0200, Bernhard Schmidt wrote: ... OK; I reverted by doing this: g1-46(9.0-C)[1] cd /usr/src g1-46(9.0-C)[2] svn merge -c -211295 file:///svn/freebsd/src/base/head --- Reverse-merging r211295 into 'sys': U sys/net80211/ieee80211_node.c U sys/net80211/ieee80211_sta.c g1-46(9.0-C)[3] I then re-built the kernel and rebooted (with the ath(4) card inserted): [..] I think that qualifies as working. Indeed, please try attached patch. Patch applied cleanly; rebuilt kernel; rebooted OK: g1-219(9.0-C)[1] uname -a FreeBSD g1-219.catwhisker.org. 9.0-CURRENT FreeBSD 9.0-CURRENT #91 r211295M: Sat Aug 14 10:22:11 PDT 2010 r...@g1-219.catwhisker.org.:/usr/obj/usr/src/sys/CANARY i386 g1-219(9.0-C)[2] ifconfig xl0: flags=8802BROADCAST,SIMPLEX,MULTICAST metric 0 mtu 1500 options=80009RXCSUM,VLAN_MTU,LINKSTATE ether 00:08:74:e9:c9:41 media: Ethernet autoselect (none) status: no carrier fwe0: flags=8802BROADCAST,SIMPLEX,MULTICAST metric 0 mtu 1500 options=8VLAN_MTU ether 42:4f:c0:2c:30:41 ch 1 dma -1 fwip0: flags=8802BROADCAST,SIMPLEX,MULTICAST metric 0 mtu 1500 lladdr 42.4f.c0.0.7.2c.30.41.a.2.ff.fe.0.0.0.0 iwi0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 2290 ether 00:0e:35:aa:11:ca media: IEEE 802.11 Wireless Ethernet autoselect mode 11g status: associated plip0: flags=8810POINTOPOINT,SIMPLEX,MULTICAST metric 0 mtu 1500 ipfw0: flags=8801UP,SIMPLEX,MULTICAST metric 0 mtu 65536 lo0: flags=8049UP,LOOPBACK,RUNNING,MULTICAST metric 0 mtu 16384 options=3RXCSUM,TXCSUM inet 127.0.0.1 netmask 0xff00 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x7 nd6 options=21PERFORMNUD,AUTO_LINKLOCAL ath0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 2290 ether 00:40:96:a7:a7:01 media: IEEE 802.11 Wireless Ethernet autoselect mode 11b status: associated wlan1: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 ether 00:0e:35:aa:11:ca media: IEEE 802.11 Wireless Ethernet autoselect (autoselect) status: no carrier ssid channel 5 (2432 MHz 11g) country US authmode WPA1+WPA2/802.11i privacy ON deftxkey UNDEF txpower 0 bmiss 24 scanvalid 60 protmode CTS wme roaming MANUAL bintval 0 wlan0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST metric 0 mtu 1500 ether 00:40:96:a7:a7:01 inet 172.17.1.219 netmask 0x broadcast 172.17.255.255 media: IEEE 802.11 Wireless Ethernet DS/11Mbps mode 11b status: associated ssid lmdhw-net channel 6 (2437 MHz 11b) bssid 00:60:1d:f1:ed:d3 regdomain FCC indoor ecm authmode OPEN privacy ON deftxkey 1 wepkey 1:40-bit txpower 23 bmiss 7 scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 1 wme burst g1-219(9.0-C)[3] Thanks! Peace, david -- David H. Wolfskill da...@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. pgpUWJtj4coXo.pgp Description: PGP signature
Re: Panic: Kernel page fault with ath0_com_lock held, r211295
On Sat, Aug 14, 2010 at 19:43, David Wolfskill da...@catwhisker.org wrote: On Sat, Aug 14, 2010 at 07:05:40PM +0200, Bernhard Schmidt wrote: ... OK; I reverted by doing this: g1-46(9.0-C)[1] cd /usr/src g1-46(9.0-C)[2] svn merge -c -211295 file:///svn/freebsd/src/base/head --- Reverse-merging r211295 into 'sys': U sys/net80211/ieee80211_node.c U sys/net80211/ieee80211_sta.c g1-46(9.0-C)[3] I then re-built the kernel and rebooted (with the ath(4) card inserted): [..] I think that qualifies as working. Indeed, please try attached patch. Patch applied cleanly; rebuilt kernel; rebooted OK: Thanks, I've committed a 'slightly' different version. Drivers which aren't using the ratectl framework should be unaffected by any changes regarding ratectl in the future. Sorry for the noise. -- Bernhard ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
