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Message-ID: <45ED35E0.3060402@dunaweb.hu> Date: Tue, 06 Mar 2007 10:35:28 +0100 From: Zoltan Boszormenyi <zboszor@...aweb.hu> To: linux-kernel@...r.kernel.org Cc: Ingo Molnar <mingo@...e.hu> Subject: BUG in kernel-rt 2.6.20-0119.rt8 Hi, I am using kernel-rt on my FC6/x86-64 system, the CPU is an Athlon64 X2. It locks up very rarely (I haven't found any sign in the logs for that) but I always get this on shutdown, I wonder if it might be related to the lockup: Mar 5 23:53:52 static-81-17-177-202 kernel: BUG: using smp_processor_id() in preemptible [00000000] code: nfsd/3939 Mar 5 23:53:52 static-81-17-177-202 kernel: caller is drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: Call Trace: Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026d828>] dump_trace+0xbd/0x3d8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026db87>] show_trace+0x44/0x6d Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026ddc8>] dump_stack+0x13/0x15 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff80355e2e>] debug_smp_processor_id+0xe3/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e01b5>] drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e07ac>] __cache_shrink+0xd5/0x1a6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e0a47>] kmem_cache_destroy+0x6c/0xe3 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a809>] :nfsd:nfsd4_free_slab+0x16/0x21 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a824>] :nfsd:nfsd4_free_slabs+0x10/0x36 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878baf9>] :nfsd:nfs4_state_shutdown+0x1a2/0x1ae Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff887750f8>] :nfsd:nfsd_last_thread+0x47/0x76 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f63a>] :sunrpc:svc_destroy+0x8d/0xd1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f738>] :sunrpc:svc_exit_thread+0xba/0xc6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8877595f>] :nfsd:nfsd+0x2a3/0x2b8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802600f8>] child_rip+0xa/0x12 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: --------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: | preempt count: 00000001 ] Mar 5 23:53:52 static-81-17-177-202 kernel: | 1-level deep critical section nesting: Mar 5 23:53:52 static-81-17-177-202 kernel: ---------------------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: .. [<ffffffff80355ddb>] .... debug_smp_processor_id+0x90/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: .....[<ffffffff802e01b5>] .. ( <= drain_array+0x25/0x132) Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: BUG: nfsd:3939 task might have lost a preemption check! Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: Call Trace: Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026d828>] dump_trace+0xbd/0x3d8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026db87>] show_trace+0x44/0x6d Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026ddc8>] dump_stack+0x13/0x15 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8028be9b>] preempt_enable_no_resched+0x5c/0x5e Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff80355e33>] debug_smp_processor_id+0xe8/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e01b5>] drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e07ac>] __cache_shrink+0xd5/0x1a6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e0a47>] kmem_cache_destroy+0x6c/0xe3 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a809>] :nfsd:nfsd4_free_slab+0x16/0x21 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a824>] :nfsd:nfsd4_free_slabs+0x10/0x36 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878baf9>] :nfsd:nfs4_state_shutdown+0x1a2/0x1ae Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff887750f8>] :nfsd:nfsd_last_thread+0x47/0x76 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f63a>] :sunrpc:svc_destroy+0x8d/0xd1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f738>] :sunrpc:svc_exit_thread+0xba/0xc6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8877595f>] :nfsd:nfsd+0x2a3/0x2b8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802600f8>] child_rip+0xa/0x12 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: --------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: | preempt count: 00000000 ] Mar 5 23:53:52 static-81-17-177-202 kernel: | 0-level deep critical section nesting: Mar 5 23:53:52 static-81-17-177-202 kernel: ---------------------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: BUG: using smp_processor_id() in preemptible [00000000] code: nfsd/3939 Mar 5 23:53:52 static-81-17-177-202 kernel: caller is drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: Call Trace: Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026d828>] dump_trace+0xbd/0x3d8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026db87>] show_trace+0x44/0x6d Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026ddc8>] dump_stack+0x13/0x15 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff80355e2e>] debug_smp_processor_id+0xe3/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e01b5>] drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e07ac>] __cache_shrink+0xd5/0x1a6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e0a47>] kmem_cache_destroy+0x6c/0xe3 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a809>] :nfsd:nfsd4_free_slab+0x16/0x21 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a830>] :nfsd:nfsd4_free_slabs+0x1c/0x36 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878baf9>] :nfsd:nfs4_state_shutdown+0x1a2/0x1ae Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff887750f8>] :nfsd:nfsd_last_thread+0x47/0x76 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f63a>] :sunrpc:svc_destroy+0x8d/0xd1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f738>] :sunrpc:svc_exit_thread+0xba/0xc6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8877595f>] :nfsd:nfsd+0x2a3/0x2b8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802600f8>] child_rip+0xa/0x12 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: --------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: | preempt count: 00000001 ] Mar 5 23:53:52 static-81-17-177-202 kernel: | 1-level deep critical section nesting: Mar 5 23:53:52 static-81-17-177-202 kernel: ---------------------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: .. [<ffffffff80355ddb>] .... debug_smp_processor_id+0x90/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: .....[<ffffffff802e01b5>] .. ( <= drain_array+0x25/0x132) Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: BUG: using smp_processor_id() in preemptible [00000000] code: nfsd/3939 Mar 5 23:53:52 static-81-17-177-202 kernel: caller is drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: Call Trace: Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026d828>] dump_trace+0xbd/0x3d8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026db87>] show_trace+0x44/0x6d Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026ddc8>] dump_stack+0x13/0x15 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff80355e2e>] debug_smp_processor_id+0xe3/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e01b5>] drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e07ac>] __cache_shrink+0xd5/0x1a6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e0a47>] kmem_cache_destroy+0x6c/0xe3 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a809>] :nfsd:nfsd4_free_slab+0x16/0x21 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a83c>] :nfsd:nfsd4_free_slabs+0x28/0x36 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878baf9>] :nfsd:nfs4_state_shutdown+0x1a2/0x1ae Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff887750f8>] :nfsd:nfsd_last_thread+0x47/0x76 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f63a>] :sunrpc:svc_destroy+0x8d/0xd1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f738>] :sunrpc:svc_exit_thread+0xba/0xc6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8877595f>] :nfsd:nfsd+0x2a3/0x2b8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802600f8>] child_rip+0xa/0x12 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: --------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: | preempt count: 00000001 ] Mar 5 23:53:52 static-81-17-177-202 kernel: | 1-level deep critical section nesting: Mar 5 23:53:52 static-81-17-177-202 kernel: ---------------------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: .. [<ffffffff80355ddb>] .... debug_smp_processor_id+0x90/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: .....[<ffffffff802e01b5>] .. ( <= drain_array+0x25/0x132) Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: BUG: using smp_processor_id() in preemptible [00000000] code: nfsd/3939 Mar 5 23:53:52 static-81-17-177-202 kernel: caller is drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: Call Trace: Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026d828>] dump_trace+0xbd/0x3d8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026db87>] show_trace+0x44/0x6d Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8026ddc8>] dump_stack+0x13/0x15 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff80355e2e>] debug_smp_processor_id+0xe3/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e01b5>] drain_array+0x25/0x132 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e07ac>] __cache_shrink+0xd5/0x1a6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802e0a47>] kmem_cache_destroy+0x6c/0xe3 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a809>] :nfsd:nfsd4_free_slab+0x16/0x21 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878a848>] :nfsd:nfsd4_free_slabs+0x34/0x36 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8878baf9>] :nfsd:nfs4_state_shutdown+0x1a2/0x1ae Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff887750f8>] :nfsd:nfsd_last_thread+0x47/0x76 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f63a>] :sunrpc:svc_destroy+0x8d/0xd1 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8867f738>] :sunrpc:svc_exit_thread+0xba/0xc6 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff8877595f>] :nfsd:nfsd+0x2a3/0x2b8 Mar 5 23:53:52 static-81-17-177-202 kernel: [<ffffffff802600f8>] child_rip+0xa/0x12 Mar 5 23:53:52 static-81-17-177-202 kernel: Mar 5 23:53:52 static-81-17-177-202 kernel: --------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: | preempt count: 00000001 ] Mar 5 23:53:52 static-81-17-177-202 kernel: | 1-level deep critical section nesting: Mar 5 23:53:52 static-81-17-177-202 kernel: ---------------------------------------- Mar 5 23:53:52 static-81-17-177-202 kernel: .. [<ffffffff80355ddb>] .... debug_smp_processor_id+0x90/0xf1 Mar 5 23:53:52 static-81-17-177-202 kernel: .....[<ffffffff802e01b5>] .. ( <= drain_array+0x25/0x132) Mar 5 23:53:52 static-81-17-177-202 kernel: BTW, I am kind of forced to use kernel-rt, as the official 2.6.19 based Fedora kernel doesn't behave well on my machine. The mainboard is an ABit KN9 SLI. With that kernel, the USB keyboard gets crazy sometimes, repeating the last pressed key ad infinitum which although doesn't lock up the machine but makes it unusable as the keyboard doesn't get out of this state. Maybe the USB subsystem misses an IRQ ACK or some ACPI bug which is fixed in 2.6.20? Best regards, Zoltán Böszörményi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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