On Thu, Aug 17, 2023 at 12:47 PM Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote: > > Hello, > I hit a rare splat on TREE04 on a 5.10 stable kernel. This is after > several days of testing (doesn't run the whole day, just a few hours > each day). > > I am posting it below for archival (I haven't looked too closely yet), > at some point I'll start having my automation also post to the list > automatically on such issues. All test artifacts are here: > http://box.joelfernandes.org:9080/job/rcutorture_stable/job/linux-5.10.y/89/artifact/tools/testing/selftests/rcutorture/res/2023.08.17-04.01.54/TREE04/ > Fixed and stable patches sent. - Joel > [ 2819.565152] smpboot: CPU 3 is now offline > [ 2821.366444] ------------[ cut here ]------------ > [ 2821.406212] smpboot: CPU 7 is now offline > [ 2821.442438] WARNING: CPU: 0 PID: 2281 at kernel/irq_work.c:95 > irq_work_queue_on+0x70/0x80 > [ 2821.466994] Modules linked in: > [ 2821.499250] CPU: 0 PID: 2281 Comm: kworker/0:1 Not tainted 5.10.191+ #242 > [ 2821.516861] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), > BIOS 1.16.2-debian-1.16.2-1 04/01/2014 > [ 2821.540362] Workqueue: rcu_gp wait_rcu_exp_gp > [ 2821.551740] RIP: 0010:irq_work_queue_on+0x70/0x80 > [ 2821.564221] Code: 00 75 1c 48 89 fe 89 cf e8 7d 21 fa ff 89 d8 5b > c3 cc cc cc cc 31 db 89 d8 5b c3 cc cc cc cc 0f 0b eb e0 e8 f2 fe ff > ff eb e3 <0f> 0b eb 9c 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 c7 c0 d8 > ad 02 > [ 2821.603978] RSP: 0018:ffffb6d0c025fe38 EFLAGS: 00010282 > [ 2821.618971] RAX: 0000000000000007 RBX: 0000000000000007 RCX: 0000000000000007 > [ 2821.633318] RDX: ffff94d3df5e2b28 RSI: 0000000000000007 RDI: ffff94d3df5e2a40 > [ 2821.650157] RBP: 000000000007c8c0 R08: 0000000000000000 R09: ffffffff8b536788 > [ 2821.668728] R10: 0000000000000003 R11: 0000000000000001 R12: ffffffff8b536788 > [ 2821.700194] R13: 0000000000005208 R14: 000000000002e580 R15: ffffffff8b536740 > [ 2821.713002] FS: 0000000000000000(0000) GS:ffff94d3df400000(0000) > knlGS:0000000000000000 > [ 2821.726975] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2821.737078] CR2: 0000000000000000 CR3: 00000000024e0000 CR4: 00000000000006f0 > [ 2821.749616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 2821.763279] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 2821.776264] Call Trace: > [ 2821.781516] ? __warn+0x7c/0x100 > [ 2821.787860] ? irq_work_queue_on+0x70/0x80 > [ 2821.795412] ? report_bug+0x99/0xc0 > [ 2821.802790] ? handle_bug+0x41/0x80 > [ 2821.809271] ? exc_invalid_op+0x13/0x60 > [ 2821.816196] ? asm_exc_invalid_op+0x12/0x20 > [ 2821.823808] ? irq_work_queue_on+0x70/0x80 > [ 2821.831849] tick_nohz_dep_set_cpu+0x59/0x70 > [ 2821.843360] rcu_exp_wait_wake+0x3ce/0x410 > [ 2821.865209] process_one_work+0x1e5/0x370 > [ 2821.889917] worker_thread+0x45/0x3b0 > [ 2821.908011] ? process_one_work+0x370/0x370 > [ 2821.915608] kthread+0x110/0x130 > [ 2821.937705] ? __kthread_bind_mask+0x60/0x60 > [ 2821.945581] ret_from_fork+0x22/0x30 > [ 2821.962225] ---[ end trace 4ba8b82994399b6a ]--- > [ 2822.451287] smpboot: Booting Node 0 Processor 7 APIC 0x7
