Re: ndis related panic in CURRENT

On Fri, Mar 20, 2009 at 12:33:06AM +0800, Ganbold wrote:
> Hi,
> 
> When I tried to make wlan0 down (ndis driver for Intel 5100AGN) got
> panic:
> ...
> Slab at 0x8cdd7cb8, freei 86 = 0.
> panic: Duplicate free of item 0x8cdd7560 from zone 0x8148c380(16)
> 
> cpuid = 0
> KDB: stack backtrace:
> db_trace_self_wrapper(80a5d82b,84e06ba0,80729ff9,80a8d790,0,...) at
> db_trace_self_wrapper+0x26
> kdb_backtrace(80a8d790,0,80a810e5,84e06bac,0,...) at kdb_backtrace+0x29
> panic(80a810e5,8cdd7560,8148c380,80a2c3b6,8,...) at panic+0x119
> uma_dbg_free(8148c380,8cdd7cb8,8cdd7560,9dc,8574286c,...) at
> uma_dbg_free+0x17b
> uma_zfree_arg(8148c380,8cdd7560,8cdd7cb8,24,85742800,...) at
> uma_zfree_arg+0x6e
> free(8cdd7560,80b2c4e0,88c3a1ec,cb3,854e8800,...) at free+0xca
> ndis_stop(84e06c80,80cc13d8,85176964,80cc13d8,80b2e344,...) at
> ndis_stop+0xe6
> ndis_ioctl_80211(854e8800,80206910,0,84e06cd4,807623cb,...) at
> ndis_ioctl_80211+0x388
> parent_updown(854e8800,1,80a5ef36,54,85247b9c,...) at parent_updown+0x22
> taskqueue_run(85247b80,85247b9c,0,80a511b5,0,...) at taskqueue_run+0x10b
> taskqueue_thread_loop(80b94068,84e06d38,80a56585,32d,80b7f400,...) at
> taskqueue_thread_loop+0x68
> fork_exit(807624c0,80b94068,84e06d38) at fork_exit+0xb8
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0, eip = 0, esp = 0x84e06d70, ebp = 0 ---
> Uptime: 2h9m2s
> Physical memory: 1979 MB
> Dumping 400 MB: 385 369 353 337 321 305 289 273 257 241 225 209 193 177
> 161 145 129 113 97 81 65 49 33 17 1
> ...
> 
> I'm running:
> beastie# uname -an
> FreeBSD beastie.micom.mng.net 8.0-CURRENT FreeBSD 8.0-CURRENT #5
> r190040M: Thu Mar 19 21:45:37 ULAT 2009
> tsgan_at_beastie.micom.mng.net:/usr/obj/usr/src/sys/DEVIL_WITNESS  i386
> 
> Please let me know if you need more info.
> 
> thanks,

Just for preventing a panic could you please try to test attached patch
though I'm not sure the patch is helpful?

regards,
Weongyo Jeong