On 14.08.2011 08:00, Ali Bahar wrote: > Hi Stefan, > > it is _Larry_ who knows this code, of course. But, having browsed thru > this for the first time, > > > On Sat, Aug 13, 2011 at 01:26:49PM +0200, Stefan Assmann wrote: >> 01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:8176] (rev 01) >> >> This happens with 3.1.0-rc1 >> >> modprobe -r rtl8192ce >> [ 450.710489] BUG: unable to handle kernel NULL pointer dereference at 0000000000000620 >> [ 450.710505] IP: [<ffffffffa0224972>] rtl92ce_get_desc+0x53/0x96 [rtl8192ce] [...] > > this seems like a concurrency issue. Right when it is deregistering > the IRQ handler, a packet is received. If so, then > > 1. it should not be reproducible on a quiet network eg when there is no > data traffic && there are no APs around. (Or if you've wrapped the > adapter in layers of foil! :-) > > 2. it should be only intermittently reproducible otherwise. Hi Ali, I haven't wrapped it in foil yet, but what I can say is that I tried to unload the module 5-6 times and it oopsed every single time. Stefan -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
