..after this hangs, I see: [ 261.473664] Oops: 0000 [#1] PREEMPT SMP [ 261.520488] Modules linked in: ipmi_ssif ipmi_devintf kvm_amd kvm dcdbas irqbypass input_leds serio_raw joydev amd64_edac_mod edac_mce_amd fam15h_power edac_core k10temp ipmi_si shpchp i2c_piix4 ipmi_msghandler 8250_fintek mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul hid_generic ghash_clmulni_intel aesni_intel mptsas aes_x86_64 pata_acpi lrw mptscsih gf128mul usbhid ahci glue_helper ablk_helper hid cryptd psmouse pata_atiixp mptbase libahci bnx2 scsi_transport_sas [ 262.283269] CPU: 3 PID: 1846 Comm: stress-ng Not tainted 4.4.0-138-lowlatency #164-Ubuntu [ 262.381038] Hardware name: Dell Inc. PowerEdge R415/08WNM9, BIOS 1.9.3 04/26/2012 [ 262.470483] task: ffff8800d8323900 ti: ffff8800ded34000 task.ti: ffff8800ded34000 [ 262.559926] RIP: 0010:[<ffffffff811fa502>] [<ffffffff811fa502>] kmem_cache_alloc+0x72/0x200 [ 262.660817] RSP: 0018:ffff8800ded37d18 EFLAGS: 00010206 [ 262.724260] RAX: 0000000000000000 RBX: ffff88020f630e10 RCX: 0000000022a95403 [ 262.809545] RDX: 0000000022a95203 RSI: 0000000022a95203 RDI: 000000000001a740 [ 262.894829] RBP: ffff8800ded37d48 R08: ffffffff811d8ebc R09: 0000000000000001 [ 262.980114] R10: ffff88021eff9000 R11: 0000000000000000 R12: 0000000002000200 [ 263.065397] R13: 00007ffcfd834000 R14: ffff880215003b00 R15: ffff880215003b00 [ 263.150683] FS: 00007f0599fc9700(0000) GS:ffff8802156c0000(0000) knlGS:0000000000000000 [ 263.247404] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 263.316050] CR2: 00007ffcfd834000 CR3: 00000000d83a6000 CR4: 00000000000406f0 [ 263.401334] Stack: [ 263.425258] 00007f059881dfff ffff88020f630e10 0000000000000000 ffff8800d3d84f40 [ 263.513690] 0000000000000001 ffff8800dae95a40 ffff8800ded37da0 ffffffff811d8ebc [ 263.602120] 0000000000000000 ffff88020ef23518 ffff88020f630e88 ffff88020ef23590 [ 263.690550] Call Trace: [ 263.719678] [<ffffffff811d8ebc>] anon_vma_clone+0x6c/0x200 [ 263.786248] [<ffffffff811d9082>] anon_vma_fork+0x32/0x140 [ 263.851779] [<ffffffff81084554>] copy_process+0x1474/0x1c70 [ 263.919385] [<ffffffff81084ee0>] _do_fork+0x80/0x390 [ 263.979714] [<ffffffff81085299>] SyS_clone+0x19/0x20 [ 264.040041] [<ffffffff81864e8e>] entry_SYSCALL_64_fastpath+0x22/0xc1 [ 264.117009] Code: 08 48 39 f2 75 e7 48 83 78 10 00 4c 8b 28 0f 84 40 01 00 00 4d 85 ed 0f 84 37 01 00 00 49 63 46 20 49 8b 3e 48 8d 8a 00 02 00 00 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 ab 49 [ 264.343111] RIP [<ffffffff811fa502>] kmem_cache_alloc+0x72/0x200 [ 264.415924] RSP <ffff8800ded37d18> [ 264.457529] CR2: 00007ffcfd834000 [ 264.497083] ---[ end trace 9af64fddce7496da ]---
and further opens seem to hang up. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796250 Title: timer test in ubuntu_stress_smoke_test will cause kernel oops on X-lowlatency To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1796250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
