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SubjectRe: ath9k: BUG kmalloc-8192: Poison overwritten
On Thu, May 13, 2010 at 9:44 PM, Justin P. Mattock
<justinmattock@gmail.com> wrote:
> On 05/13/10 21:01, Luis R. Rodriguez wrote:
>>
>> On Thu, May 13, 2010 at 7:14 PM, Justin P. Mattock
>> <justinmattock@gmail.com>  wrote:
>>
>>>
>>> what I can try, is(not at the convention, on eth0
>>> at the moment), but when I get back to the convention
>>> center place I can try your patch as well as the
>>> modprobe option, to see if I can get any signs of
>>> a recreation(if so I'll bisect there).
>>
>> The debug info I just need upon load of the module, I don't need you
>> to run the debug stuff to try to reproduce. The debug print upon load
>> will tell us the rxbuf size and cache line size.
>>
>>   Luis
>>
>
> o.k. it's not pretty due
> to loads of avc's for SELinux:
> (I run a rootless system).
>
> [   84.172649] ath9k: Driver unloaded
> [  100.675300] audit_printk_skb: 6 callbacks suppressed
> [  100.675306] type=1400 audit(1273811633.675:20): avc:  denied  { search }
> for  pid=2168 comm="modprobe" name="modules" dev=sda3 ino=2500
> scontext=name:staff_r:staff_sudo_t:s0
> tcontext=system_u:object_r:modules_object_t:s0 tclass=dir
> [  100.675408] type=1400 audit(1273811633.675:20): avc:  denied  { search }
> for  pid=2168 comm="modprobe" name="2.6.34-rc7-00057-gcdfda35" dev=sda3
> ino=524392 scontext=name:staff_r:staff_sudo_t:s0
> tcontext=name:object_r:modules_object_t:s0 tclass=dir
> [  100.675552] type=1400 audit(1273811633.675:20): avc:  denied  { read }
> for  pid=2168 comm="modprobe" name="modules.dep.bin" dev=sda3 ino=525251
> scontext=name:staff_r:staff_sudo_t:s0
> tcontext=name:object_r:modules_object_t:s0 tclass=file
> [  100.675598] type=1400 audit(1273811633.675:20): avc:  denied  { open }
> for  pid=2168 comm="modprobe" name="modules.dep.bin" dev=sda3 ino=525251
> scontext=name:staff_r:staff_sudo_t:s0
> tcontext=name:object_r:modules_object_t:s0 tclass=file
> [  100.675748] type=1300 audit(1273811633.675:20): arch=c000003e syscall=2
> success=yes exit=3 a0=60d140 a1=0 a2=1b6 a3=0 items=0 ppid=2080 pid=2168
> auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0
> ses=1 comm="modprobe" exe="/sbin/modprobe" subj=name:staff_r:staff_sudo_t:s0
> key=(null)
> [  100.675902] type=1400 audit(1273811633.675:21): avc:  denied  { getattr }
> for  pid=2168 comm="modprobe"
> path="/lib/modules/2.6.34-rc7-00057-gcdfda35/modules.dep.bin" dev=sda3
> ino=525251 scontext=name:staff_r:staff_sudo_t:s0
> tcontext=name:object_r:modules_object_t:s0 tclass=file
> [  100.676052] type=1300 audit(1273811633.675:21): arch=c000003e syscall=5
> success=yes exit=0 a0=3 a1=7fffd2d1dd70 a2=7fffd2d1dd70 a3=0 items=0
> ppid=2080 pid=2168 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0
> fsgid=0 tty=pts0 ses=1 comm="modprobe" exe="/sbin/modprobe"
> subj=name:staff_r:staff_sudo_t:s0 key=(null)
> [  100.698392] ath9k 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ
> 17
> [  100.698409] ath9k 0000:03:00.0: setting latency timer to 64
> [  100.828787] ath: EEPROM regdomain: 0x64
> [  100.828790] ath: EEPROM indicates we should expect a direct regpair map
> [  100.828793] ath: Country alpha2 being used: 00
> [  100.828795] ath: Regpair used: 0x64
> [  100.848609] type=1400 audit(1273811633.678:22): avc:  denied  { search }
> for  pid=2168 comm="modprobe" name="ieee80211" dev=debugfs ino=18
> scontext=name:staff_r:staff_sudo_t:s0
> tcontext=system_u:object_r:debugfs_t:s0 tclass=dir
> [  100.848788] phy1: Selected rate control algorithm 'ath9k_rate_control'
> [  100.850035] Registered led device: ath9k-phy1::radio
> [  100.850488] Registered led device: ath9k-phy1::assoc
> [  100.851227] Registered led device: ath9k-phy1::tx
> [  100.851633] Registered led device: ath9k-phy1::rx
> [  100.851640] phy1: Atheros AR5418 MAC/BB Rev:2 AR5133 RF Rev:81
> mem=0xffffc900005a0000, irq=17
> [  100.852240] type=1300 audit(1273811633.678:22): arch=c000003e syscall=175
> success=yes exit=0 a0=7f1e9d6ab010 a1=19580 a2=60d920 a3=0 items=0 ppid=2080
> pid=2168 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
> tty=pts0 ses=1 comm="modprobe" exe="/sbin/modprobe"
> subj=name:staff_r:staff_sudo_t:s0 key=(null)
>
> but there you go dmesg of the debug info for you

Justin, did you forget to use the debug parameter on modprobe ath9k?

modprobe ath9k debug=0x0000020

I do not see the output I expected.

Luis
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