On 05/19/2016 05:56 PM, Bob Copeland wrote:
+linux-wireless
On Thu, May 19, 2016 at 03:11:16PM -0600, James Feeney wrote:
Arch linux 4.6-1
wpa_supplicant 1:2.5-3
Toshiba Satellite, circa 2011, with a Pentium Dual-Core Mobile
Error is not seen on other machines.
kernel: BUG: scheduling while atomic: wpa_supplicant/375/0x00000002
This is a kernel bug, not a wpa_supplicant bug. The linux-wireless mailing
list would be a more appropriate venue for this bug report.
May 19 10:26:07 lapis kernel: BUG: scheduling while atomic: wpa_supplicant/627/0x00000002
[...]
May 19 10:26:07 lapis kernel: [<ffffffff815c2b39>] __schedule+0x899/0xad0
May 19 10:26:07 lapis kernel: [<ffffffff815c2dac>] schedule+0x3c/0x90
May 19 10:26:07 lapis kernel: [<ffffffff815c5bb2>] schedule_hrtimeout_range_clock+0xa2/0x120
May 19 10:26:07 lapis kernel: [<ffffffff810e8b80>] ? hrtimer_init+0x120/0x120
May 19 10:26:07 lapis kernel: [<ffffffff815c5ba6>] ? schedule_hrtimeout_range_clock+0x96/0x120
May 19 10:26:07 lapis kernel: [<ffffffff815c5c43>] schedule_hrtimeout_range+0x13/0x20
May 19 10:26:07 lapis kernel: [<ffffffff815c568f>] usleep_range+0x4f/0x70
May 19 10:26:07 lapis kernel: [<ffffffffa0667218>] rtl_rfreg_delay+0x38/0x50 [rtlwifi]
May 19 10:26:07 lapis kernel: [<ffffffffa06dd0e7>] rtl92c_phy_config_rf_with_headerfile+0xc7/0xe0 [rtl8192ce]
[Probably due to this kernel change:
commit 49f86ec21c01b654f6ec47f2f4567f4f9ebaa26b
Author: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Date: Mon Feb 15 16:12:07 2016 -0600
rtlwifi: Change long delays to sleeps
...apparently this function isn't in sleepable context after all.]
@James: Please run the command "dmesg | grep rtl_rfreg_delay". Do any of the
resulting lines show a value other than "+0x38" for the offset? If that is the
only one, the attached patch should fix the problem.
Thanks,
Larry
diff --git a/Makefile b/Makefile
index 0f9cb36..080962b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 4
-PATCHLEVEL = 6
+PATCHLEVEL = 7
SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = rc1
NAME = Charred Weasel
# *DOCUMENTATION*
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 0f48048..2fc0e26 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -75,7 +75,7 @@ void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
rtl_addr_delay(addr);
} else {
rtl_set_rfreg(hw, rfpath, addr, mask, data);
- usleep_range(1, 2);
+ udelay(1);
}
}
EXPORT_SYMBOL(rtl_rfreg_delay);
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