Hi, On 09/23/2014 10:09 AM, Juri Lelli wrote: >> Sep 19 09:54:37 starbuck kernel: [ 1309.728678] ------------[ cut here >> ]------------ >> Sep 19 09:54:37 starbuck kernel: [ 1309.728699] kernel BUG at >> kernel/sched/deadline.c:819! >> Sep 19 09:54:37 starbuck kernel: [ 1309.728719] invalid opcode: 0000 [#1] >> PREEMPT SMP >> Sep 19 09:54:37 starbuck kernel: [ 1309.728744] Modules linked in: nfsv3 >> rpcsec_gss_krb5 nfsv4 dm_crypt nfsd auth_rpcgss oid_registry exportfs >> nfs_acl nfs lockd sunrpc bridge stp llc lp coretemp kvm_intel kvm ppdev >> ioatdma microcode ipmi_si parport_pc lpc_ich dca mfd_core parport >> ipmi_msghandler joydev serio_raw hid_generic usbhid hid crc32c_intel psmouse >> e1000e ptp pps_core >> Sep 19 09:54:37 starbuck kernel: [ 1309.728928] CPU: 5 PID: 0 Comm: >> swapper/5 Not tainted 3.16.0+ #20 >> Sep 19 09:54:37 starbuck kernel: [ 1309.728950] Hardware name: empty >> empty/S7002, BIOS 'V1.10.B10 ' 05/03/2011 >> Sep 19 09:54:37 starbuck kernel: [ 1309.728977] task: ffff88023691c920 ti: >> ffff88023692c000 task.ti: ffff88023692c000 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729003] RIP: >> 0010:[<ffffffff810a543e>] [<ffffffff810a543e>] enqueue_task_dl+0x44e/0x450 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729041] RSP: 0018:ffff88043fc23e68 >> EFLAGS: 00010082 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729060] RAX: 0000000000000000 RBX: >> ffff880434edb0c0 RCX: ffff880434edb2f8 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729086] RDX: 0000000000000008 RSI: >> ffff880434edb0c0 RDI: 0000000000000000 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729140] RBP: ffff88043fc23ea8 R08: >> 0000000000000001 R09: 000002cb4aebb39d >> Sep 19 09:54:37 starbuck kernel: [ 1309.729193] R10: 13955a8129438cf2 R11: >> 0000000000000202 R12: 0000000000000008 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729247] R13: ffff88043fc33f00 R14: >> ffff88043fc2e0e0 R15: ffff880434edb2f8 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729301] FS: 0000000000000000(0000) >> GS:ffff88043fc20000(0000) knlGS:0000000000000000 >> Sep 19 09:54:37 starbuck kernel: [ 1309.729383] CS: 0010 DS: 0000 ES: 0000 >> CR0: 000000008005003b >> Sep 19 09:54:37 starbuck kernel: [ 1309.729436] CR2: 0000000000000000 CR3: >> 0000000435a07000 CR4: 00000000000027e0 >> > > This can be related to the problems Daniel is also experiencing.
I nailed my problem down to mutex with PI inheritance. This will trigger kernel BUG at kernel/sched/deadline.c:819! reliable. cheers, daniel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/