Le mardi 25 mars 2014 à 22:18 +0200, Ilya Dryomov a écrit : > On Tue, Mar 25, 2014 at 9:03 PM, Alex Elder <[email protected]> wrote: > > On 03/25/2014 01:53 PM, Olivier Bonvalet wrote: > >> Le mardi 25 mars 2014 à 12:43 -0500, Alex Elder a écrit : > >>> Please try applying this, on top of the previous patch. > >>> If you can then reproduce the problem we'll have a bunch > >>> of new information about the particular request that's > >>> leading to the failure. That might tell us what more we > >>> can do to find the root cause. Thank you. > >>> > >>> -Alex > >>> > >>> PS I hope my mailer doesn't botch the long lines. It might. > >>> > >> > >> Here the execution will continue, no more kernel panic after this > >> debugging display. Is it wanted ? > > > > > > I guess it should panic. I'm glad you mentioned this. > > Just in case, if you haven't done it already: stick rbd_assert(0); > after the last printk in that if statement, so it looks like this: > > if (which != img_request->next_completion) { > printk("%s: bad image object request information:\n", __func__); > printk("obj_request %p\n", obj_request); > printk(" ->object_name <%s>\n", obj_request->object_name); > ... > > printk("img_request %p\n", img_request); > printk(" ->snap 0x%016llx\n", img_request->snap_id); > ... > printk(" ->result %d\n", img_request->result); > > rbd_assert(0); > } > > Thanks, > > Ilya >
Without the rbd_assert(0), I add this hang : Mar 25 21:17:58 murmillia kernel: [ 2205.255933] rbd_img_obj_callback: bad image object request information: Mar 25 21:17:58 murmillia kernel: [ 2205.255938] obj_request ffff88025a2b3c48 Mar 25 21:17:58 murmillia kernel: [ 2205.255940] ->object_name <rb.0.1536881.238e1f29.000000000439> Mar 25 21:17:58 murmillia kernel: [ 2205.255941] ->offset 0 Mar 25 21:17:58 murmillia kernel: [ 2205.255943] ->length 28672 Mar 25 21:17:58 murmillia kernel: [ 2205.255944] ->type 0x1 Mar 25 21:17:58 murmillia kernel: [ 2205.255945] ->flags 0x3 Mar 25 21:17:58 murmillia kernel: [ 2205.255946] ->which 1 Mar 25 21:17:58 murmillia kernel: [ 2205.255948] ->xferred 28672 Mar 25 21:17:58 murmillia kernel: [ 2205.255949] ->result 0 Mar 25 21:17:58 murmillia kernel: [ 2205.255950] img_request ffff8802536c4a60 Mar 25 21:17:58 murmillia kernel: [ 2205.255952] ->snap 0xffff880257f85ec0 Mar 25 21:17:58 murmillia kernel: [ 2205.255953] ->offset 4534026240 Mar 25 21:17:58 murmillia kernel: [ 2205.255954] ->length 45056 Mar 25 21:17:58 murmillia kernel: [ 2205.255955] ->flags 0x1 Mar 25 21:17:58 murmillia kernel: [ 2205.255957] ->obj_request_count 1 Mar 25 21:17:58 murmillia kernel: [ 2205.255958] ->next_completion 2 Mar 25 21:17:58 murmillia kernel: [ 2205.255959] ->xferred 45056 Mar 25 21:17:58 murmillia kernel: [ 2205.255960] ->result 0 Mar 25 21:17:58 murmillia kernel: [ 2205.255962] Mar 25 21:17:58 murmillia kernel: [ 2205.255962] Assertion failure in rbd_img_obj_callback() at line 2162: Mar 25 21:17:58 murmillia kernel: [ 2205.255962] Mar 25 21:17:58 murmillia kernel: [ 2205.255962] rbd_assert(which < img_request->obj_request_count); Mar 25 21:17:58 murmillia kernel: [ 2205.255962] Mar 25 21:17:58 murmillia kernel: [ 2205.256141] ------------[ cut here ]------------ Mar 25 21:17:58 murmillia kernel: [ 2205.256178] kernel BUG at drivers/block/rbd.c:2162! -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
