Hi Eric, Am 22.11.2014 um 01:22 schrieb Eric Wheeler: >> Before the patch goes upstream I need it tested so I know if it fixes >> the actual issue or not. > > We have been using the rcu_sched patch and the cond_resched patch together > (both attached) since November 3rd on 3.17.2 without any bcache > backtraces. bcache is running in writeback mode. The server is > predominantly write-only with relatively few reads. Is the rcu_sched patch supposed to help the same or a totally different problem? Means: should I also apply it, rebuild the module and reboot (resetting the test time to zero :-) I had the "deadly" soft lockup once per week since updating to 3.16/3.17, so I can only tell if it might help in two weeks earliest. > To sum up, the attached two patches (plus the for-jens pull) have fixed all > of our bcache problems since 3.14.y. These patches on 3.17.2 seem quite stable. That's good to hear :-) Best regards, Stefan -- Stefan Seyfried Linux Consultant & Developer -- GPG Key: 0x731B665B B1 Systems GmbH Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537 -- 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