On 4 September 2018 at 02:46, François Valenduc <francoisvalenduc@xxxxxxxxx> wrote: > Le 3/09/18 à 20:39, Holger Hoffstätte a écrit : >> On 09/03/18 18:55, Greg Kroah-Hartman wrote: >>> This is the start of the stable review cycle for the 4.18.6 release. >> >> Unfortunately this is busted. First blamed my custom patches, but as it >> turns out a 100% vanilla 4.18.6 build crashes as well. Single-user starts, >> but later when starting services and esp. autofs (I think - too much >> output) >> explodes with: >> >> ... >> Sep 3 20:19:36 ragnarok kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link >> is not ready >> Sep 3 20:19:38 ragnarok kernel: BUG: stack guard page was hit at >> 00000000ab58c99c (stack is 00000000382b9464..00000000d642b9d6) >> Sep 3 20:19:38 ragnarok kernel: kernel stack overflow (double-fault): >> 0000 [#1] SMP >> Sep 3 20:19:38 ragnarok kernel: CPU: 4 PID: 3634 Comm: automount >> Tainted: G O 4.18.6 #1 >> Sep 3 20:19:38 ragnarok kernel: Hardware name: Gigabyte Technology Co., >> Ltd. P67-DS3-B3/P67-DS3-B3, BIOS F1 05/06/2011 >> Sep 3 20:19:38 ragnarok kernel: RIP: >> 0010:flush_tlb_func_common.constprop.4+0x23/0x260 >> Sep 3 20:19:38 ragnarok kernel: Code: 0b eb e5 0f 1f 40 00 66 66 66 66 >> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 f0 48 83 ec 20 65 48 >> 8b 04 25 28 00 00 00 <48> 89 44 24 18 31 c0 65 66 8b 1d 96 fd fc 7e 0f >> b7 c3 65 48 8b 15 >> Sep 3 20:19:38 ragnarok kernel: RSP: 0018:ffffc9000326bfe0 EFLAGS: >> 00010082 >> Sep 3 20:19:38 ragnarok kernel: RAX: cf0a75e3a0e78e00 RBX: >> ffff880601006cc0 RCX: 0000000000000000 >> Sep 3 20:19:38 ragnarok kernel: RDX: 00007fb464e7e000 RSI: >> 0000000000000003 RDI: ffffc9000326c040 >> Sep 3 20:19:38 ragnarok kernel: RBP: ffffc9000326c030 R08: >> 00000005fca490e7 R09: 00000000004fa811 >> Sep 3 20:19:38 ragnarok kernel: R10: 0000000000000002 R11: >> 0000000000000000 R12: 0000000000000004 >> Sep 3 20:19:38 ragnarok kernel: R13: ffff8805fbab7600 R14: >> ffff880601006cc0 R15: ffff880602dfb540 >> Sep 3 20:19:38 ragnarok kernel: FS: 00007fb469245240(0000) >> GS:ffff88061f500000(0000) knlGS:0000000000000000 >> Sep 3 20:19:38 ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0: >> 0000000080050033 >> Sep 3 20:19:38 ragnarok kernel: CR2: ffffc9000326bfd8 CR3: >> 00000005feadb001 CR4: 00000000000606e0 >> Sep 3 20:19:38 ragnarok kernel: Call Trace: >> Sep 3 20:19:38 ragnarok kernel: flush_tlb_mm_range+0xff/0x110 >> Sep 3 20:19:38 ragnarok kernel: ? cpumask_any_but+0x1f/0x40 >> Sep 3 20:19:38 ragnarok kernel: ? cpumask_any_but+0x1f/0x40 >> Sep 3 20:19:38 ragnarok kernel: tlb_flush_mmu_tlbonly+0x76/0xc0 >> Sep 3 20:19:38 ragnarok kernel: tlb_table_flush.part.13+0xe/0x30 >> Sep 3 20:19:38 ragnarok kernel: tlb_flush_mmu_tlbonly+0x54/0xc0 >> ..a few hundred times.. >> Sep 3 20:19:38 ragnarok kernel: tlb_table_flush.part.13+0xe/0x30 >> Sep 3 20:19:38 ragnarok kernel: tlb_flush_mmu_tlbonly+0x54/0xc0 >> Sep 3 20:19:38 ragnarok kernel: arch_tlb_finish_mmu+0x3a/0x70 >> Sep 3 20:19:38 ragnarok kernel: tlb_finish_mmu+0x1f/0x30 >> Sep 3 20:19:38 ragnarok kernel: unmap_region+0xdd/0x110 >> Sep 3 20:19:38 ragnarok kernel: ? __vma_rb_erase+0x128/0x250 >> Sep 3 20:19:38 ragnarok kernel: do_munmap+0x273/0x3f0 >> Sep 3 20:19:38 ragnarok kernel: vm_munmap+0x5f/0xa0 >> Sep 3 20:19:38 ragnarok kernel: __x64_sys_munmap+0x22/0x30 >> Sep 3 20:19:38 ragnarok kernel: do_syscall_64+0x3e/0xe0 >> Sep 3 20:19:38 ragnarok kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 >> Sep 3 20:19:38 ragnarok kernel: RIP: 0033:0x7fb469081187 >> Sep 3 20:19:38 ragnarok kernel: Code: ff ff ff f7 d8 89 05 58 df 20 00 >> 48 c7 c0 ff ff ff ff eb 8a 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 >> b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d 29 df 20 00 >> f7 d8 89 01 48 83 >> Sep 3 20:19:38 ragnarok kernel: RSP: 002b:00007ffef83ba548 EFLAGS: >> 00000206 ORIG_RAX: 000000000000000b >> Sep 3 20:19:38 ragnarok kernel: RAX: ffffffffffffffda RBX: >> 0000562a1dca9010 RCX: 00007fb469081187 >> Sep 3 20:19:38 ragnarok kernel: RDX: 0000000000000002 RSI: >> 0000000000204028 RDI: 00007fb464c79000 >> Sep 3 20:19:38 ragnarok kernel: RBP: 00007ffef83ba720 R08: >> 00007fb46928e930 R09: 0000000000000000 >> Sep 3 20:19:38 ragnarok kernel: R10: 00007fb464e7d000 R11: >> 0000000000000206 R12: 00007ffef83ba654 >> Sep 3 20:19:38 ragnarok kernel: R13: 00007ffef83ba610 R14: >> 00007ffef83ba655 R15: 00007fb46928e000 >> Sep 3 20:19:38 ragnarok kernel: Modules linked in: autofs4 tcp_bbr >> sch_fq_codel pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) >> it87 hwmon_vid x86_pkg_temp_thermal uvcvideo videobuf2_vmalloc >> videobuf2_memops snd_usb_audio videobuf2_v4l2 snd_hwdep bfq >> snd_usbmidi_lib videodev snd_rawmidi coretemp snd_seq_device >> videobuf2_common radeon usbhid kvm_intel i2c_algo_bit kvm >> snd_hda_codec_realtek irqbypass drm_kms_helper snd_hda_codec_hdmi >> snd_hda_codec_generic pcbc syscopyarea sysfillrect sysimgblt mq_deadline >> fb_sys_fops ttm snd_hda_intel aesni_intel snd_hda_codec drm snd_hda_core >> aes_x86_64 crypto_simd drm_panel_orientation_quirks cryptd snd_pcm >> glue_helper backlight snd_timer snd i2c_i801 soundcore i2c_core r8169 >> parport_pc parport mii >> Sep 3 20:19:38 ragnarok kernel: ---[ end trace cf25033b43d98311 ]--- >> Sep 3 20:19:38 ragnarok kernel: RIP: >> 0010:flush_tlb_func_common.constprop.4+0x23/0x260 >> Sep 3 20:19:38 ragnarok kernel: Code: 0b eb e5 0f 1f 40 00 66 66 66 66 >> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 f0 48 83 ec 20 65 48 >> 8b 04 25 28 00 00 00 <48> 89 44 24 18 31 c0 65 66 8b 1d 96 fd fc 7e 0f >> b7 c3 65 48 8b 15 >> Sep 3 20:19:38 ragnarok kernel: RSP: 0018:ffffc9000326bfe0 EFLAGS: >> 00010082 >> Sep 3 20:19:38 ragnarok kernel: RAX: cf0a75e3a0e78e00 RBX: >> ffff880601006cc0 RCX: 0000000000000000 >> Sep 3 20:19:38 ragnarok kernel: RDX: 00007fb464e7e000 RSI: >> 0000000000000003 RDI: ffffc9000326c040 >> Sep 3 20:19:38 ragnarok kernel: RBP: ffffc9000326c030 R08: >> 00000005fca490e7 R09: 00000000004fa811 >> Sep 3 20:19:38 ragnarok kernel: R10: 0000000000000002 R11: >> 0000000000000000 R12: 0000000000000004 >> Sep 3 20:19:38 ragnarok kernel: R13: ffff8805fbab7600 R14: >> ffff880601006cc0 R15: ffff880602dfb540 >> Sep 3 20:19:38 ragnarok kernel: FS: 00007fb469245240(0000) >> GS:ffff88061f500000(0000) knlGS:0000000000000000 >> Sep 3 20:19:38 ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0: >> 0000000080050033 >> Sep 3 20:19:38 ragnarok kernel: CR2: ffffc9000326bfd8 CR3: >> 00000005feadb001 CR4: 00000000000606e0 >> Sep 3 20:19:40 ragnarok kernel: r8169 0000:04:00.0 eth0: link up >> Sep 3 20:19:40 ragnarok kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eth0: >> link becomes ready >> >> This is repeatable; full log is available on request. >> >> Reverting >> "mm-tlb-x86-mm-support-invalidating-tlb-caches-for-rcu_table_free" >> makes everything work. >> >> I'm now going back to my custom tree with lazy TLB handling, that worked as >> advertised. :D >> >> cheers >> Holger >> > I confirm this also for the 4.14 tree. I get the same errors and > reverting the same patch also fixes the problem. I do see this crash log on 4.18.6-rc1, 4.18.6-rc1 run full log, https://lkft.validation.linaro.org/scheduler/job/404027#L3244 > > François Valenduc Best regards Naresh Kamboju
