On 2018/8/6 2:33 PM, Stefan Priebe - Profihost AG wrote: > Hi Coly, > > while running the SLES15 kernel i observed a workqueue lockup and a > totally crashed system today. > > dmesg output is about 3,5mb but it seems it just repeats the > bch_data_insert_keys msg. > Hi Stefan, Thanks for your information! Could you please to give me any hint on how to reproduce it ? Even it is not stable reproducible, a detailed procedure may help me a lot. Coly Li > The beginning is: > > 2018-08-06 02:08:06 BUG: workqueue lockup - pool cpus=1 node=0 > flags=0x1 nice=0 stuck for 51s! > 2018-08-06 02:08:06 pending: memcg_kmem_cache_create_func > 2018-08-06 02:08:06 delayed: memcg_kmem_cache_create_func > 2018-08-06 02:08:06 workqueue bcache: flags=0x8 > 2018-08-06 02:08:06 pwq 22: cpus=11 node=0 flags=0x0 nice=0 active=1/256 > 2018-08-06 02:08:06 in-flight: 1764369:bch_data_insert_keys [bcache] > 2018-08-06 02:08:06 pwq 18: cpus=9 node=0 flags=0x1 nice=0 > active=256/256 MAYDAY > 2018-08-06 02:08:06 in-flight: 1765894:bch_data_insert_keys > [bcache], 1765908:bch_data_insert_keys [bcache], > 1765931:bch_data_insert_keys [bcache], 1765984:bch_data_insert_keys > [bcache], 1765815:bch_data_insert_keys [bcache], > 1765893:bch_data_insert_keys [bcache], 1765981:bch_data_insert_keys > [bcache], 1765875:bch_data_insert_keys [bcache], > 1765963:bch_data_insert_keys [bcache], 1765960:bch_data_insert_keys > [bcache], 1765889:bch_data_insert_keys [bcache], > 1765989:bch_data_insert_keys [bcache], 1765897:bch_data_insert_keys > [bcache], 1765911:bch_data_insert_keys [bcache], > 1765924:bch_data_insert_keys [bcache], 1765808:bch_data_insert_keys > [bcache], 1765879:bch_data_insert_keys [bcache], > 1765948:bch_data_insert_keys [bcache], 1765970:bch_data_insert_keys > [bcache], 1765859:bch_data_insert_keys [bcache], > 1765884:bch_data_insert_keys [bcache] > 2018-08-06 02:08:06 , 1765952:bch_data_insert_keys [bcache], > 1765990:bch_data_insert_keys [bcache], 1765817:bch_data_insert_keys > [bcache], 1765858:bch_data_insert_keys [bcache], > 1765928:bch_data_insert_keys [bcache], 1765936:bch_data_insert_keys > [bcache], 1762396:bch_data_insert_keys [bcache], > 1765831:bch_data_insert_keys [bcache], 1765847:bch_data_insert_keys > [bcache], 1765895:bch_data_insert_keys [bcache], > 1765925:bch_data_insert_keys [bcache], 1765967:bch_data_insert_keys > [bcache], 1765798:bch_data_insert_keys [bcache], > 1765827:bch_data_insert_keys [bcache], 1765857:bch_data_insert_keys > [bcache], 1765979:bch_data_insert_keys [bcache], > 1765809:bch_data_insert_keys [bcache], 1765856:bch_data_insert_keys > [bcache], 1765878:bch_data_insert_keys [bcache], > 1765918:bch_data_insert_keys [bcache], 1765934:bch_data_insert_keys [bcache] > 2018-08-06 02:08:06 , 1765982:bch_data_insert_keys [bcache], > 1765813:bch_data_insert_keys [bcache], 1765883:bch_data_insert_keys > [bcache], 1765993:bch_data_insert_keys [bcache], > 1765834:bch_data_insert_keys [bcache], 1765920:bch_data_insert_keys > [bcache], 1765962:bch_data_insert_keys [bcache], > 1765788:bch_data_insert_keys [bcache], 1765882:bch_data_insert_keys > [bcache], 1765942:bch_data_insert_keys [bcache], > 1765825:bch_data_insert_keys [bcache], 1765854:bch_data_insert_keys > [bcache], 1765902:bch_data_insert_keys [bcache], > 1765838:bch_data_insert_keys [bcache], 1765868:bch_data_insert_keys > [bcache], 1765932:bch_data_insert_keys [bcache], > 1765944:bch_data_insert_keys [bcache], 1765975:bch_data_insert_keys > [bcache], 1765983:bch_data_insert_keys [bcache], > 1765810:bch_data_insert_keys [bcache], 1765863:bch_data_insert_keys [bcache] > > Greets, > Stefan > -- > To unsubscribe from this list: send the line "unsubscribe linux-bcache" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
