On Thu, May 24, 2007 at 08:47:13PM +1000, Herbert Xu wrote: > On Thu, May 24, 2007 at 11:36:22AM +0100, Jeremy Fitzhardinge wrote: > > > > I got a hang while rmmodding e1000. sysrq-t shows: > > > > rmmod D 003FFAFC 6616 15923 15911 (NOTLB) > > e9341e44 00000092 82318c15 003ffafc e9341e2c 00000000 e9341e14 > > 823187a1 > > 003ffafc 00000000 c0123862 d3dbab80 d3dbad1c c2c08a40 77a67d01 > > 000001ca > > 00000292 e9341e24 c03799cd e9341e54 c0540840 e9341e44 00223389 > > 000000ff > > Call Trace: > > [<c03777b1>] schedule_timeout+0x70/0x8e > > [<c03777e4>] schedule_timeout_uninterruptible+0x15/0x17 > > [<c0133d04>] msleep+0x10/0x16 > > [<c030d5e0>] dev_close+0x39/0x6b > > Looks like we're spinning on __LINK_STATE_RX_SCHED. This means that > someone called netif_poll_disable() without re-enabling it again. > Perhaps e1000_io_error_detected? Auke?
I think the dual meaning of __LINK_STATE_RX_SCHED is seriously broken. In dev_close we are waiting for any outstanding poll to terminate but the same bit can either mean an outstanding poll or that poll has been disabled. It's a surprise that it has taken so many years for someone to report a bug on it. I'll try to get this fixed up, probably by adding a bit. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
