Le samedi 27 août 2011 à 13:58 -0700, Justin Mattock a écrit : CC Johannes Berg & linux-wireless > running the latest Mainline, on my dell inspiron 1200, s2r does work, > but ath5k dies out, > and some smp oops is showing up. > > > full dmesg..: > http://fpaste.org/t1e9/ > > [ 256.469741] BUG: unable to handle kernel NULL pointer dereference at 000000a0 > [ 256.469763] IP: [<c1390104>] set_regdom+0x1ba/0x501 > [ 256.469783] *pdpt = 00000000190a0001 *pde = 0000000000000000 > [ 256.469797] Oops: 0000 [#1] SMP > [ 256.469808] Modules linked in: snd_seq snd_seq_device i915 > drm_kms_helper drm mperf ath5k ath snd_intel8x0 snd_ac97_codec > ac97_bus snd_pcm snd_timer joydev snd soundcore e100 yenta_socket > psmouse evdev i2c_i801 mii snd_page_alloc button battery video ac > intel_agp intel_gtt uhci_hcd ehci_hcd fan thermal processor > [ 256.469898] > [ 256.469906] Pid: 3510, comm: crda Not tainted > 3.1.0-rc2-00190-g3210d19 #1 Dell Inc. Inspiron 1200 > /0C8862 > [ 256.469927] EIP: 0060:[<c1390104>] EFLAGS: 00010246 CPU: 0 > [ 256.469939] EIP is at set_regdom+0x1ba/0x501 > [ 256.469948] EAX: dd9e51a0 EBX: dc4d3ab0 ECX: 00000000 EDX: 00000000 > [ 256.469959] ESI: ffffff8e EDI: 00000004 EBP: d907dc44 ESP: d907dc00 > [ 256.469970] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > [ 256.469981] Process crda (pid: 3510, ti=d907c000 task=c1cd0000 > task.ti=d907c000) > [ 256.469992] Stack: > [ 256.469997] de002500 d907dc18 d907dc44 00000000 dd4de128 dd4de128 > dc4d3af8 00000006 > [ 256.470007] d907dc3c c11de8b7 00000006 d907dc58 dc4d3af8 dc4d3ab0 > dc4d3b10 dc4d3ab0 > [ 256.470007] dd4de130 d907dc80 c13964b3 00000000 00000004 00000004 > 00000000 dd4de100 > [ 256.470007] Call Trace: > [ 256.470007] [<c11de8b7>] ? nla_parse+0x3c/0x8f > [ 256.470007] [<c13964b3>] nl80211_set_reg+0x197/0x1e9 > [ 256.470007] [<c1330bf9>] genl_rcv_msg+0x1cb/0x1e8 > [ 256.470007] [<c1330a2e>] ? genl_rcv+0x22/0x22 > [ 256.470007] [<c133014c>] netlink_rcv_skb+0x32/0x73 > [ 256.470007] [<c1330a27>] genl_rcv+0x1b/0x22 > [ 256.470007] [<c132fc76>] netlink_unicast+0x1af/0x210 > [ 256.470007] [<c132feff>] netlink_sendmsg+0x228/0x276 > [ 256.470007] [<c130abf4>] sock_sendmsg+0xc3/0xde > [ 256.470007] [<c10cedde>] ? might_fault+0x36/0x70 > [ 256.470007] [<c10cedde>] ? might_fault+0x36/0x70 > [ 256.470007] [<c10cedde>] ? might_fault+0x36/0x70 > [ 256.470007] [<c11d234e>] ? _copy_from_user+0x39/0x4d > [ 256.470007] [<c131367e>] ? verify_iovec+0x3e/0x74 > [ 256.470007] [<c130ae0e>] __sys_sendmsg+0x17d/0x202 > [ 256.470007] [<c130aa0a>] ? sock_sendmsg_nosec+0xbb/0xbb > [ 256.470007] [<c13da231>] ? _raw_spin_unlock+0x1d/0x20 > [ 256.470007] [<c10eae81>] ? fget_light+0xce/0x248 > [ 256.470007] [<c130c0ce>] sys_sendmsg+0x2b/0x46 > [ 256.470007] [<c130c555>] sys_socketcall+0x166/0x1b4 > [ 256.470007] [<c11d1d3c>] ? trace_hardirqs_on_thunk+0xc/0x10 > [ 256.470007] [<c13df898>] sysenter_do_call+0x12/0x38 > [ 256.470007] Code: ff 76 08 68 36 91 57 c1 e8 fb 74 04 00 83 c4 14 > 47 83 c6 18 3b 3b 72 bc e9 9f 01 00 00 83 78 04 02 75 2d 8b 4d c8 be > 8e ff ff ff > [ 256.470007] b9 a0 00 00 00 00 0f 85 89 01 00 00 89 c8 89 da 05 a0 00 00 > [ 256.470007] EIP: [<c1390104>] set_regdom+0x1ba/0x501 SS:ESP 0068:d907dc00 > [ 256.470007] CR2: 00000000000000a0 > [ 256.470555] ---[ end trace abd4fbefd1655e11 ]--- > > last good kernel I have with this is: > 3.1.0-rc1 (minus the i915 s2r problem thats fixed now) > if you need any patches tested on this let me know. I can try a bisect > since its not to much > (but might be a while, since the machine is sloooow!!) > NULL deref is in net/wireless/reg.c line 2047 if (request_wiphy->regd) return -EALREADY; Apparently, request_wiphy is NULL request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx); -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
