mirror of https://gitee.com/openkylin/linux.git
c7515d2365
This patch adds explicit call to bcma_core_pci_power_save() from a non-atomic context resolving 'scheduling while atomic' issue. [ 13.224317] BUG: scheduling while atomic: dhcpcd/1800/0x00000202 [ 13.224322] Modules linked in: brcmsmac nouveau coretemp kvm_intel kvm cordic brcmutil bcma dell_wmi atl1c ttm mxm_wmi wmi [ 13.224354] CPU: 0 PID: 1800 Comm: dhcpcd Tainted: G W 3.11.0-wl #1 [ 13.224359] Hardware name: Alienware M11x R2/M11x R2, BIOS A04 11/23/2010 [ 13.224363] ffff880177c12c40 ffff880170fd1968 ffffffff8169af5b 0000000000000007 [ 13.224374] ffff880170fd1ad0 ffff880170fd1978 ffffffff81697ee2 ffff880170fd19f8 [ 13.224383] ffffffff816a19f5 00000000000f4240 000000000000d080 ffff880170fd1fd8 [ 13.224391] Call Trace: [ 13.224399] [<ffffffff8169af5b>] dump_stack+0x4f/0x84 [ 13.224403] [<ffffffff81697ee2>] __schedule_bug+0x43/0x51 [ 13.224409] [<ffffffff816a19f5>] __schedule+0x6e5/0x810 [ 13.224412] [<ffffffff816a1c34>] schedule+0x24/0x70 [ 13.224416] [<ffffffff816a04fc>] schedule_hrtimeout_range_clock+0x10c/0x150 [ 13.224420] [<ffffffff810684e0>] ? update_rmtp+0x60/0x60 [ 13.224424] [<ffffffff8106915f>] ? hrtimer_start_range_ns+0xf/0x20 [ 13.224429] [<ffffffff816a054e>] schedule_hrtimeout_range+0xe/0x10 [ 13.224432] [<ffffffff8104f6fb>] usleep_range+0x3b/0x40 [ 13.224437] [<ffffffffa003733a>] bcma_pcie_mdio_read.isra.5+0x8a/0x100 [bcma] [ 13.224442] [<ffffffffa00374a5>] bcma_pcie_mdio_writeread.isra.6.constprop.13+0x25/0x30 [bcma] [ 13.224448] [<ffffffffa00374f9>] bcma_core_pci_power_save+0x49/0x80 [bcma] [ 13.224452] [<ffffffffa003765d>] bcma_core_pci_up+0x2d/0x60 [bcma] [ 13.224460] [<ffffffffa03dc17c>] brcms_c_up+0xfc/0x430 [brcmsmac] [ 13.224467] [<ffffffffa03d1a7d>] brcms_up+0x1d/0x20 [brcmsmac] [ 13.224473] [<ffffffffa03d2498>] brcms_ops_start+0x298/0x340 [brcmsmac] [ 13.224478] [<ffffffff81600a12>] ? cfg80211_netdev_notifier_call+0xd2/0x5f0 [ 13.224483] [<ffffffff815fa53d>] ? packet_notifier+0xad/0x1d0 [ 13.224487] [<ffffffff81656e75>] ieee80211_do_open+0x325/0xf80 [ 13.224491] [<ffffffff8106ac09>] ? __raw_notifier_call_chain+0x9/0x10 [ 13.224495] [<ffffffff81657b41>] ieee80211_open+0x71/0x80 [ 13.224498] [<ffffffff81526267>] __dev_open+0x87/0xe0 [ 13.224502] [<ffffffff8152650c>] __dev_change_flags+0x9c/0x180 [ 13.224505] [<ffffffff815266a3>] dev_change_flags+0x23/0x70 [ 13.224509] [<ffffffff8158cd68>] devinet_ioctl+0x5b8/0x6a0 [ 13.224512] [<ffffffff8158d5c5>] inet_ioctl+0x75/0x90 [ 13.224516] [<ffffffff8150b38b>] sock_do_ioctl+0x2b/0x70 [ 13.224519] [<ffffffff8150b681>] sock_ioctl+0x71/0x2a0 [ 13.224523] [<ffffffff8114ed47>] do_vfs_ioctl+0x87/0x520 [ 13.224528] [<ffffffff8113f159>] ? ____fput+0x9/0x10 [ 13.224533] [<ffffffff8106228c>] ? task_work_run+0x9c/0xd0 [ 13.224537] [<ffffffff8114f271>] SyS_ioctl+0x91/0xb0 [ 13.224541] [<ffffffff816aa252>] system_call_fastpath+0x16/0x1b Cc: <stable@vger.kernel.org> # 3.11.x Cc: Tod Jackson <tod.jackson@gmail.com> Cc: Joe Perches <joe@perches.com> Cc: Rafal Milecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> |
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| .. | ||
| ath | ||
| b43 | ||
| b43legacy | ||
| brcm80211 | ||
| cw1200 | ||
| hostap | ||
| ipw2x00 | ||
| iwlegacy | ||
| iwlwifi | ||
| libertas | ||
| libertas_tf | ||
| mwifiex | ||
| orinoco | ||
| p54 | ||
| prism54 | ||
| rt2x00 | ||
| rtl818x | ||
| rtlwifi | ||
| ti | ||
| zd1211rw | ||
| Kconfig | ||
| Makefile | ||
| adm8211.c | ||
| adm8211.h | ||
| airo.c | ||
| airo.h | ||
| airo_cs.c | ||
| at76c50x-usb.c | ||
| at76c50x-usb.h | ||
| atmel.c | ||
| atmel.h | ||
| atmel_cs.c | ||
| atmel_pci.c | ||
| mac80211_hwsim.c | ||
| mac80211_hwsim.h | ||
| mwl8k.c | ||
| ray_cs.c | ||
| ray_cs.h | ||
| rayctl.h | ||
| rndis_wlan.c | ||
| wl3501.h | ||
| wl3501_cs.c | ||
| zd1201.c | ||
| zd1201.h | ||