Sep 10 21:13:56 BelliashPC kernel: BUG: kernel NULL pointer dereference, address: 000000000000000d Sep 10 21:13:56 BelliashPC kernel: #PF: supervisor write access in kernel mode Sep 10 21:13:56 BelliashPC kernel: #PF: error_code(0x0002) - not-present page Sep 10 21:13:56 BelliashPC kernel: PGD 0 P4D 0 Sep 10 21:13:56 BelliashPC kernel: Oops: 0002 [#1] SMP NOPTI Sep 10 21:13:56 BelliashPC kernel: CPU: 11 PID: 30804 Comm: kworker/11:2 Tainted: P O T 5.2.13-gentoo #1 Sep 10 21:13:56 BelliashPC kernel: Hardware name: Gigabyte Technology Co., Ltd. B450 AORUS ELITE/B450 AORUS ELITE, BIOS F42a 07/31/2019 Sep 10 21:13:56 BelliashPC kernel: Workqueue: 0x0 (events) Sep 10 21:13:56 BelliashPC kernel: RIP: 0010:worker_thread+0xfc/0x3b0 Sep 10 21:13:56 BelliashPC kernel: Code: 0f 84 8e 02 00 00 48 8b 4c 24 18 49 39 4f 38 0f 85 a9 02 00 00 83 e0 fb 41 89 47 60 ff 4a 34 49 8b 17 49 8b 47 08 48 89 42 08 <48> 89 10 4d 89 3f 4d 89 7f 08 48 8b 45 20 4c 8d 6d 20 49 39 c5 74 Sep 10 21:13:56 BelliashPC kernel: RSP: 0018:ffffaec608acfec0 EFLAGS: 00010002 Sep 10 21:13:56 BelliashPC kernel: RAX: 000000000000000d RBX: ffff8d78aecdfa80 RCX: ffff8d789fa1b400 Sep 10 21:13:56 BelliashPC kernel: RDX: ffff8d78a4112780 RSI: ffff8d78a91e56c0 RDI: ffff8d78aecdfa80 Sep 10 21:13:56 BelliashPC kernel: RBP: ffff8d78aecdfa80 R08: ffff8d78aece0180 R09: 0000000000001800 Sep 10 21:13:56 BelliashPC kernel: R10: 0000000000000000 R11: ffffffffffffffff R12: ffff8d78a4112b68 Sep 10 21:13:56 BelliashPC kernel: R13: ffff8d78aecdfaa0 R14: ffff8d78a4112b40 R15: ffff8d78a4112b40 Sep 10 21:13:56 BelliashPC kernel: FS: 0000000000000000(0000) GS:ffff8d78aecc0000(0000) knlGS:0000000000000000 Sep 10 21:13:56 BelliashPC kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 10 21:13:56 BelliashPC kernel: CR2: 00000000000000b0 CR3: 000000069063a000 CR4: 0000000000340ee0 Sep 10 21:13:56 BelliashPC kernel: Call Trace: Sep 10 21:13:56 BelliashPC kernel: kthread+0xf8/0x130 Sep 10 21:13:56 BelliashPC kernel: ? set_worker_desc+0xb0/0xb0 Sep 10 21:13:56 BelliashPC kernel: ? kthread_park+0x80/0x80 Sep 10 21:13:56 BelliashPC kernel: ret_from_fork+0x22/0x40 Sep 10 21:13:56 BelliashPC kernel: Modules linked in: nvidia_drm(PO) nvidia_modeset(PO) nvidia(PO) vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) Sep 10 21:13:56 BelliashPC kernel: CR2: 000000000000000d Sep 10 21:13:56 BelliashPC kernel: ---[ end trace 23be40ec0c6dea2a ]--- Sep 10 21:13:56 BelliashPC kernel: RIP: 0010:worker_thread+0xfc/0x3b0 Sep 10 21:13:56 BelliashPC kernel: Code: 0f 84 8e 02 00 00 48 8b 4c 24 18 49 39 4f 38 0f 85 a9 02 00 00 83 e0 fb 41 89 47 60 ff 4a 34 49 8b 17 49 8b 47 08 48 89 42 08 <48> 89 10 4d 89 3f 4d 89 7f 08 48 8b 45 20 4c 8d 6d 20 49 39 c5 74 Sep 10 21:13:56 BelliashPC kernel: RSP: 0018:ffffaec608acfec0 EFLAGS: 00010002 Sep 10 21:13:56 BelliashPC kernel: RAX: 000000000000000d RBX: ffff8d78aecdfa80 RCX: ffff8d789fa1b400 Sep 10 21:13:56 BelliashPC kernel: RDX: ffff8d78a4112780 RSI: ffff8d78a91e56c0 RDI: ffff8d78aecdfa80 Sep 10 21:13:56 BelliashPC kernel: RBP: ffff8d78aecdfa80 R08: ffff8d78aece0180 R09: 0000000000001800 Sep 10 21:13:56 BelliashPC kernel: R10: 0000000000000000 R11: ffffffffffffffff R12: ffff8d78a4112b68 Sep 10 21:13:56 BelliashPC kernel: R13: ffff8d78aecdfaa0 R14: ffff8d78a4112b40 R15: ffff8d78a4112b40 Sep 10 21:13:56 BelliashPC kernel: FS: 0000000000000000(0000) GS:ffff8d78aecc0000(0000) knlGS:0000000000000000 Sep 10 21:13:56 BelliashPC kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 10 21:13:56 BelliashPC kernel: CR2: 00000000000000b0 CR3: 000000069063a000 CR4: 0000000000340ee0 Sep 10 21:14:16 BelliashPC kernel: NVRM: GPU at PCI:0000:06:00: GPU-4c9bfa83-5407-92ac-ce82-441bb9e3ac79 Sep 10 21:14:16 BelliashPC kernel: NVRM: GPU Board Serial Number: Sep 10 21:14:16 BelliashPC kernel: NVRM: Xid (PCI:0000:06:00): 8, pid=3723, Channel 00000010 Sep 10 21:14:18 BelliashPC kernel: rcu: INFO: rcu_sched detected stalls on CPUs/tasks: Sep 10 21:14:18 BelliashPC kernel: rcu: \x090-...0: (0 ticks this GP) idle=f26/1/0x4000000000000000 softirq=1165408/1165408 fqs=5246 Sep 10 21:14:18 BelliashPC kernel: \x09(detected by 6, t=21002 jiffies, g=3474865, q=223) Sep 10 21:14:18 BelliashPC kernel: Sending NMI from CPU 6 to CPUs 0: Sep 10 21:14:18 BelliashPC kernel: NMI backtrace for cpu 0 Sep 10 21:14:18 BelliashPC kernel: CPU: 0 PID: 26618 Comm: kworker/0:0 Tainted: P D O T 5.2.13-gentoo #1 Sep 10 21:14:18 BelliashPC kernel: Hardware name: Gigabyte Technology Co., Ltd. B450 AORUS ELITE/B450 AORUS ELITE, BIOS F42a 07/31/2019 Sep 10 21:14:18 BelliashPC kernel: Workqueue: events vmstat_shepherd Sep 10 21:14:18 BelliashPC kernel: RIP: 0010:queued_spin_lock_slowpath+0x3d/0x1a0 Sep 10 21:14:18 BelliashPC kernel: Code: 3e f0 0f ba 2f 08 0f 92 c0 0f b6 c0 c1 e0 08 89 c2 8b 07 30 e4 09 d0 a9 00 01 ff ff 75 18 85 c0 74 0e 8b 07 84 c0 74 08 f3 90 <8b> 07 84 c0 75 f8 66 c7 07 01 00 c3 f6 c4 01 75 04 c6 47 01 00 48 Sep 10 21:14:18 BelliashPC kernel: RSP: 0018:ffffaec609d3fe08 EFLAGS: 00000002 Sep 10 21:14:18 BelliashPC kernel: RAX: 0000000000300101 RBX: ffff8d78aece4900 RCX: 0000000000000000 Sep 10 21:14:18 BelliashPC kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8d78aecdfa80 Sep 10 21:14:18 BelliashPC kernel: RBP: 000000000000002a R08: ffff8d78ae001da8 R09: 00000000000000d8 Sep 10 21:14:18 BelliashPC kernel: R10: 0000000000000000 R11: ffff8d78ae001e80 R12: ffff8d78ab174e00 Sep 10 21:14:18 BelliashPC kernel: R13: ffff8d78aecdd4a0 R14: 000000000001d808 R15: 000000000000000b Sep 10 21:14:18 BelliashPC kernel: FS: 0000000000000000(0000) GS:ffff8d78aea00000(0000) knlGS:0000000000000000 Sep 10 21:14:18 BelliashPC kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 10 21:14:18 BelliashPC kernel: CR2: 00007f0232d5f8b0 CR3: 00000007de9a8000 CR4: 0000000000340ef0 Sep 10 21:14:18 BelliashPC kernel: Call Trace: Sep 10 21:14:18 BelliashPC kernel: __queue_work+0x95/0x2f0 Sep 10 21:14:18 BelliashPC kernel: ? __switch_to_asm+0x40/0x70 Sep 10 21:14:18 BelliashPC kernel: queue_delayed_work_on+0x17/0x20 Sep 10 21:14:18 BelliashPC kernel: vmstat_shepherd+0x61/0xa0 Sep 10 21:14:18 BelliashPC kernel: process_one_work+0x19a/0x310 Sep 10 21:14:18 BelliashPC kernel: worker_thread+0x45/0x3b0 Sep 10 21:14:18 BelliashPC kernel: kthread+0xf8/0x130 Sep 10 21:14:18 BelliashPC kernel: ? set_worker_desc+0xb0/0xb0 Sep 10 21:14:18 BelliashPC kernel: ? kthread_park+0x80/0x80 Sep 10 21:14:18 BelliashPC kernel: ret_from_fork+0x22/0x40 Sep 10 21:14:18 BelliashPC kernel: NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context Sep 10 21:14:20 BelliashPC kernel: NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
This is what happens on my Ryzen7 3700X CPU installed on Gigabyte B450 Aorus Elite motherboard on 5.2.13 kernel. I got BIOS with AGESA 1.0.0.3ABB already flashed. I tried zenstates.py as well as CONFIG_RCU_NOCB_CPU=y in the kernel and passing rcu-nocbs=0-15 as a kernel parameter. None of this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
