ifup wlan0이 커널을 유발합니다.

내 노트북에서 이 작업을 수행하면 ifup wlan0때때로 가 표시됩니다 dmesg. 다른 경우에는 로그가 완전히 괜찮아 보이고 메시지가 없습니다 kernel Oops.

두 경우 모두(오류 유무에 관계없이) 네트워크가 제대로 작동하는 것 같습니다.

하지만 무슨 일이 일어나고 있는지 이해하고 싶습니다. 통화 추적 메시지의 의미를 설명하는 데 도움을 줄 수 있나요?

kernel: [181794.747548] ------------[ cut here ]------------
kernel: [181794.747560] WARNING: CPU: 2 PID: 8430 at net/wireless/reg.c:1806 0xffffffff8147a677()
kernel: [181794.747570] CPU: 2 PID: 8430 Comm: kworker/2:0 Tainted: G        W     3.16.6 #1
kernel: [181794.747574] Hardware name: Dell Inc. Latitude E7440/03HFCG, BIOS A09 05/01/2014
kernel: [181794.747579] Workqueue: events 0xffffffff8147a740
kernel: [181794.747584]  0000000000000000 0000000000000009 ffffffff814c43fb 0000000000000000
kernel: [181794.747592]  ffffffff81058185 0000000000011500 ffffffff8147a677 ffff88040d4cb300
kernel: [181794.747598]  ffff8804082e7e00 0000000000000003 ffff88040d440240 ffff8804082e7e00
kernel: [181794.747605] Call Trace:
kernel: [181794.747611]  [<ffffffff814c43fb>] ? 0xffffffff814c43fb
kernel: [181794.747615]  [<ffffffff81058185>] ? 0xffffffff81058185
kernel: [181794.747619]  [<ffffffff8147a677>] ? 0xffffffff8147a677
kernel: [181794.747623]  [<ffffffff8147a677>] ? 0xffffffff8147a677
kernel: [181794.747627]  [<ffffffff8147a7ae>] ? 0xffffffff8147a7ae
kernel: [181794.747630]  [<ffffffff81067c27>] ? 0xffffffff81067c27
kernel: [181794.747634]  [<ffffffff8106806f>] ? 0xffffffff8106806f
kernel: [181794.747638]  [<ffffffff81067d7d>] ? 0xffffffff81067d7d
kernel: [181794.747642]  [<ffffffff8106cc2d>] ? 0xffffffff8106cc2d
kernel: [181794.747645]  [<ffffffff8106cb68>] ? 0xffffffff8106cb68
kernel: [181794.747649]  [<ffffffff814cb16c>] ? 0xffffffff814cb16c
kernel: [181794.747653]  [<ffffffff8106cb68>] ? 0xffffffff8106cb68
kernel: [181794.747657] ---[ end trace 269bc2d623c15a61 ]---
kernel: [181794.747661] cfg80211: Calling CRDA for country: DE
kernel: [181794.790714] CPU: 2 PID: 8430 Comm: kworker/2:0 Tainted: G        W     3.16.6 #1
kernel: [181794.790717] Hardware name: Dell Inc. Latitude E7440/03HFCG, BIOS A09 05/01/2014
kernel: [181794.790720] Workqueue: events 0xffffffff8147a740
kernel: [181794.790723]  0000000000000000 0000000000000009 ffffffff814c43fb 0000000000000000
kernel: [181794.790728]  ffffffff81058185 0000000000011500 ffffffff8147a677 ffff88040d4cb300
kernel: [181794.790732]  ffff8804082e7e00 0000000000000003 ffff88040d440240 ffff8804082e7e00
kernel: [181794.790736] Call Trace:
kernel: [181794.790740]  [<ffffffff814c43fb>] ? 0xffffffff814c43fb
kernel: [181794.790743]  [<ffffffff81058185>] ? 0xffffffff81058185
kernel: [181794.790745]  [<ffffffff8147a677>] ? 0xffffffff8147a677
kernel: [181794.790747]  [<ffffffff8147a677>] ? 0xffffffff8147a677
kernel: [181794.790750]  [<ffffffff8147a7ae>] ? 0xffffffff8147a7ae
kernel: [181794.790752]  [<ffffffff81067c27>] ? 0xffffffff81067c27
kernel: [181794.790754]  [<ffffffff8106806f>] ? 0xffffffff8106806f
kernel: [181794.790757]  [<ffffffff81067d7d>] ? 0xffffffff81067d7d
kernel: [181794.790759]  [<ffffffff8106cc2d>] ? 0xffffffff8106cc2d
kernel: [181794.790761]  [<ffffffff8106cb68>] ? 0xffffffff8106cb68
kernel: [181794.790763]  [<ffffffff814cb16c>] ? 0xffffffff814cb16c
kernel: [181794.790766]  [<ffffffff8106cb68>] ? 0xffffffff8106cb68
kernel: [181794.790768] ---[ end trace 269bc2d623c15a62 ]---
kernel: [181794.790771] cfg80211: Calling CRDA for country: DE
kernel: [181794.972483] ------------[ cut here ]------------

이를 완료하기 위해 이것이 새 노트북이라고 덧붙일 수 있지만 원래 Wi-Fi 카드(Intel Dualband Wireless-AC 7260)를 내 카드(Intel Centrino Ultimate-N 6300)로 교체했습니다.

나는 Debian Wheezy와 내 커널 3.16.6을 사용하고 있습니다.