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Date: Tue, 04 Aug 2009 23:31:53 +0200 From: Rene Mayrhofer <rene.mayrhofer@...raltar.at> To: Mike McCormack <mikem@...g3k.org> CC: Stephen Hemminger <shemminger@...ux-foundation.org>, netdev@...r.kernel.org, Richard Leitner <leitner@...s.at> Subject: Re: Kernel oops on setting sky2 interfaces down -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Mike McCormack wrote: > 2009/8/4 Rene Mayrhofer <rene.mayrhofer@...raltar.at>: > >> Does anybody have an idea on what might be wrong in sky2_down? > > I had a look into this, and noticed that we don't hold phy_lock when calling > sky2_phy_power_down() in sky2_down(). sky2_phy_power_down() does some PCI > manipulation, so it's possible this could cause bad things to happen... > > Does the following patch help? It does certainly change things: [~]# [ 394.651649] ------------[ cut here ]------------ [ 394.655499] kernel BUG at net/core/skbuff.c:1086! [ 394.655499] invalid opcode: 0000 [#1] PREEMPT SMP [ 394.655499] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed [ 394.655499] Modules linked in: xt_multiport cpufreq_userspace xt_DSCP xt_length xt_mark xt_dscp xt_MARK xt_CONNMARK xt_comment xt_policy ipt_REDIRECT ip6t_LOG xt_tcpudp ip6table_mangle iptable_mangle ip6table_filter ip6_tables sit tunnel4 8021q garp stp llc ipt_LOG xt_limit xt_state iptable_nat iptable_filter ip_tables x_tables dm_mod p4_clockmod speedstep_lib freq_table tun imq nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack_ipv6 nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ipv6 evdev parport_pc parport i2c_i801 iTCO_wdt serio_raw i2c_core rng_core pcspkr intel_agp loop aufs exportfs nls_utf8 nls_cp437 ide_generic sd_mod ide_gd_mod ata_generic pata_acpi skge ata_piix piix ide_pci_generic ide_core sky2 thermal_sys [ 394.655499] [ 394.655499] Pid: 0, comm: swapper Not tainted (2.6.30.4 #2) [ 394.655499] EIP: 0060:[<c045e0cd>] EFLAGS: 00010206 CPU: 0 [ 394.655499] EIP is at skb_put+0x23/0x8c [ 394.655499] EAX: e1ebb022 EBX: e1eb4880 ECX: e1eb4880 EDX: 000000cc [ 394.655499] ESI: 000000cc EDI: f71f145c EBP: c065be64 ESP: c065be58 [ 394.655499] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 394.655499] Process swapper (pid: 0, ti=c065a000 task=c061d300 task.ti=c065a000) [ 394.655499] Stack: [ 394.655499] 9d5834df e1eb4880 00000600 c065beb0 f80ea72f 000202d2 00000040 f71e9388 [ 394.655499] 97a234df f71e9380 f71e9000 f690cb80 e1ff8030 00000002 9d5834df c065bec8 [ 394.655499] f71e9380 000000cc 9d5834df f71e9388 00000040 00000000 c065bedc c0463ce6 [ 394.655499] Call Trace: [ 394.655499] [<f80ea72f>] ? skge_poll+0x41f/0x5b6 [skge] [ 394.655499] [<c0463ce6>] ? net_rx_action+0x9e/0x1a2 [ 394.655499] [<c0237b6e>] ? __do_softirq+0xb2/0x188 [ 394.655499] [<c0237c83>] ? do_softirq+0x3f/0x5c [ 394.655499] [<c0237e0d>] ? irq_exit+0x37/0x80 [ 394.655499] [<c0204cd2>] ? do_IRQ+0x79/0xa0 [ 394.655499] [<c02034d0>] ? common_interrupt+0x30/0x38 [ 394.655499] [<c0209ade>] ? mwait_idle+0xad/0x116 [ 394.655499] [<c0201eb4>] ? cpu_idle+0x96/0xc6 [ 394.655499] [<c04dbb19>] ? rest_init+0x75/0x88 [ 394.655499] [<c0660a16>] ? start_kernel+0x32d/0x343 [ 394.655499] [<c0660078>] ? __init_begin+0x78/0x8e [ 394.655499] Code: ff 8d 65 f8 5b 5e 5d c3 55 89 c1 89 e5 56 89 d6 53 83 ec 04 65 a1 14 00 00 00 89 45 f4 31 c0 83 79 58 00 8b 81 a8 00 00 00 74 04 <0f> 0b eb fe 8d 1c 10 01 51 54 3b 99 ac 00 00 00 89 99 a8 00 00 [ 394.655499] EIP: [<c045e0cd>] skb_put+0x23/0x8c SS:ESP 0068:c065be58 [ 394.913195] ---[ end trace d93328fae040abf9 ]--- [ 394.918175] Kernel panic - not syncing: Fatal exception in interrupt [ 394.924926] Pid: 0, comm: swapper Tainted: G D 2.6.30.4 #2 [ 394.931491] Call Trace: [ 394.934153] [<c04eb041>] ? printk+0x1d/0x30 [ 394.938722] [<c04eaf7f>] panic+0x53/0xf8 [ 394.943025] [<c0206368>] oops_end+0x9f/0xbf [ 394.947565] [<c020656f>] die+0x5f/0x77 [ 394.951672] [<c0203ae1>] do_trap+0x9f/0xca [ 394.956129] [<c0203ea8>] ? do_invalid_op+0x0/0xa2 [ 394.961254] [<c0203f2f>] do_invalid_op+0x87/0xa2 [ 394.966274] [<c045e0cd>] ? skb_put+0x23/0x8c [ 394.970951] [<c04a7672>] ? udp_rcv+0x21/0x34 [ 394.975611] [<c0487922>] ? ip_local_deliver_finish+0x197/0x1ef [ 394.981912] [<c04879e9>] ? ip_local_deliver+0x6f/0x89 [ 394.987390] [<c0487527>] ? ip_rcv_finish+0x28b/0x2b2 [ 394.992768] [<c04ee71a>] error_code+0x7a/0x80 [ 394.997517] [<c045e0cd>] ? skb_put+0x23/0x8c [ 395.002192] [<f80ea72f>] skge_poll+0x41f/0x5b6 [skge] [ 395.007671] [<c0463ce6>] net_rx_action+0x9e/0x1a2 [ 395.012798] [<c0237b6e>] __do_softirq+0xb2/0x188 [ 395.017818] [<c0237c83>] do_softirq+0x3f/0x5c [ 395.022561] [<c0237e0d>] irq_exit+0x37/0x80 [ 395.027122] [<c0204cd2>] do_IRQ+0x79/0xa0 [ 395.031502] [<c02034d0>] common_interrupt+0x30/0x38 [ 395.036815] [<c0209ade>] ? mwait_idle+0xad/0x116 [ 395.041844] [<c0201eb4>] cpu_idle+0x96/0xc6 [ 395.046397] [<c04dbb19>] rest_init+0x75/0x88 [ 395.051049] [<c0660a16>] start_kernel+0x32d/0x343 [ 395.056178] [<c0660078>] __init_begin+0x78/0x8e [ 395.061107] Rebooting in 30 seconds.. Interesting that there are no sky2 errors anymore but that skge oopses... After a reboot and rmmod skge before networking restart, it suddenly starts to work! I only get these errors during ifdown/ifup: [ 534.141904] sky2 wan: disabling interface [ 534.342464] sky2 gibsrv: disabling interface [ 534.679531] sky2 dmz: disabling interface [ 535.000035] sky2 0000:01:00.0: device status error [ 535.000043] sky2 0000:03:00.0: device status error [ 535.017519] sky2 lan: disabling interface [ 536.000030] sky2 0000:01:00.0: device status error [ 536.000038] sky2 0000:03:00.0: device status error [ 536.000042] sky2 0000:04:00.0: device status error [ 537.000028] sky2 0000:01:00.0: device status error [ 537.000035] sky2 0000:03:00.0: device status error [ 537.000040] sky2 0000:04:00.0: device status error [ 537.009455] sky2 0000:01:00.0: wan: phy I/O error [ 537.014229] sky2 0000:01:00.0: wan: phy I/O error [ 537.018975] sky2 0000:01:00.0: wan: phy I/O error [ 537.023716] sky2 0000:01:00.0: wan: phy I/O error [ 537.028463] sky2 0000:01:00.0: wan: phy I/O error [ 537.033210] sky2 0000:01:00.0: wan: phy I/O error [ 537.037950] sky2 0000:01:00.0: wan: phy I/O error [ 537.042694] sky2 0000:01:00.0: wan: phy I/O error [ 537.047435] sky2 0000:01:00.0: wan: phy I/O error [ 537.052177] sky2 0000:01:00.0: wan: phy I/O error [ 537.057639] sky2 wan: enabling interface [ 537.057852] ADDRCONF(NETDEV_UP): wan: link is not ready [ 537.288286] sky2 gibsrv: enabling interface [ 537.288459] ADDRCONF(NETDEV_UP): gibsrv: link is not ready [ 537.627866] sky2 0000:03:00.0: dmz: phy I/O error [ 537.632634] sky2 0000:03:00.0: dmz: phy I/O error [ 537.637377] sky2 0000:03:00.0: dmz: phy I/O error [ 537.642118] sky2 0000:03:00.0: dmz: phy I/O error [ 537.646862] sky2 0000:03:00.0: dmz: phy I/O error [ 537.651610] sky2 0000:03:00.0: dmz: phy I/O error [ 537.656353] sky2 0000:03:00.0: dmz: phy I/O error [ 537.661097] sky2 0000:03:00.0: dmz: phy I/O error [ 537.665846] sky2 0000:03:00.0: dmz: phy I/O error [ 537.670589] sky2 0000:03:00.0: dmz: phy I/O error [ 537.676143] sky2 dmz: enabling interface [ 537.676317] ADDRCONF(NETDEV_UP): dmz: link is not ready [ 538.000031] sky2 0000:01:00.0: device status error [ 538.000039] sky2 0000:03:00.0: device status error [ 538.000044] sky2 0000:04:00.0: device status error [ 538.024201] sky2 0000:04:00.0: lan: phy I/O error [ 538.028971] sky2 0000:04:00.0: lan: phy I/O error [ 538.033712] sky2 0000:04:00.0: lan: phy I/O error [ 538.038455] sky2 0000:04:00.0: lan: phy I/O error [ 538.043199] sky2 0000:04:00.0: lan: phy I/O error [ 538.047939] sky2 0000:04:00.0: lan: phy I/O error [ 538.052681] sky2 0000:04:00.0: lan: phy I/O error [ 538.057424] sky2 0000:04:00.0: lan: phy I/O error [ 538.062167] sky2 0000:04:00.0: lan: phy I/O error [ 538.066908] sky2 0000:04:00.0: lan: phy I/O error [ 538.072982] sky2 lan: enabling interface [ 538.073196] ADDRCONF(NETDEV_UP): lan: link is not ready [ 539.000021] sky2 0000:01:00.0: device status error [ 539.000029] sky2 0000:03:00.0: device status error [ 539.000034] sky2 0000:04:00.0: device status error [ 539.447535] tun6to4: Disabled Privacy Extensions [ 540.000022] sky2 0000:01:00.0: device status error [ 540.000033] sky2 0000:03:00.0: device status error [ 540.000039] sky2 0000:04:00.0: device status error [ 541.000020] sky2 0000:01:00.0: device status error [ 541.000032] sky2 0000:03:00.0: device status error [ 541.000038] sky2 0000:04:00.0: device status error [ 542.000025] sky2 0000:01:00.0: device status error [ 542.000035] sky2 0000:03:00.0: device status error [ 542.000046] sky2 0000:04:00.0: device status error [ 543.000030] sky2 0000:01:00.0: device status error [ 543.000044] sky2 0000:03:00.0: device status error [ 543.000054] sky2 0000:04:00.0: device status error Unfortunately, these errors continue and the device refuses to send or receive any packets afterwards. I will next try to use sky2.c from netdev git, as suggested. best regards, Rene -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkp4qMUACgkQq7SPDcPCS94EPQCgx6nYmqUaZQbnXqNUTYPOulfA bGMAn2oSt+KedkNOBGpF1y55JIjCdstl =fH02 -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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