On 02/13/2018 10:15 PM, Cyril Bur wrote: > On Tue, 2018-02-13 at 21:12 -0800, Tyrel Datwyler wrote: >> On 02/13/2018 05:20 PM, Cyril Bur wrote: >>> Hello all, >> >> Does reverting commit 02ef6dd8109b581343ebeb1c4c973513682535d6 alleviate the >> issue? >> > > Hi Tyrel, > > No it doesn't. Same backtrace.
What about commit 0c38ed6f6f0b78a404fe46767d21504b37af8705? After a little closer look I think the series that commit enabled is the culprit. Especially, since Michael Ellerman complained of the same crash. -Tyrel >> >>> >>> I'm seeing this crash trying to boot a KVM virtual machine. This kernel >>> was compiled with pseries_le_defconfig and run using the following qemu >>> commandline: >>> >>> qemu-system-ppc64 -enable-kvm -cpu POWER8 -smp 4 -m 4G -M pseries >>> -nographic -vga none -drive file=vm.raw,if=virtio,format=raw -drive >>> file=mkvmconf2xeO,if=virtio,format=raw -netdev type=user,id=net0 >>> -device virtio-net-pci,netdev=net0 -kernel vmlinux_tscr -append >>> 'root=/dev/vdb1 rw cloud-init=disabled' >>> >>> qemu-system-ppc64 --version >>> QEMU emulator version 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.16), Copyright >>> (c) 2003-2008 Fabrice Bellard >>> >>> >>> Key type dns_resolver registered >>> Unable to handle kernel paging request for data at address 0x00000010 >>> Faulting instruction address: 0xc0000000018f2bbc >>> Oops: Kernel access of bad area, sig: 11 [#1] >>> LE SMP NR_CPUS=2048 NUMA pSeries >>> CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.16.0-rc1v4.16-rc1 #8 >>> NIP: c0000000018f2bbc LR: c0000000018f2bb4 CTR: 0000000000000000 >>> REGS: c0000000fea838d0 TRAP: 0380 Not tainted (4.16.0-rc1v4.16-rc1) >>> MSR: 8000000002009033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 84000248 XER: >>> 20000000 >>> CFAR: c0000000019591a0 SOFTE: 0 >>> GPR00: c0000000018f2bb4 c0000000fea83b50 c000000001bd8400 >>> 0000000000000000 >>> GPR04: c0000000fea83b70 0000000000000000 000000000000002f >>> 0000000000000022 >>> GPR08: 0000000000000000 c0000000022a3e90 0000000000000000 >>> 0000000000000220 >>> GPR12: 0000000000000000 c00000000fb40980 c00000000000d698 >>> 0000000000000000 >>> GPR16: 0000000000000000 0000000000000000 0000000000000000 >>> 0000000000000000 >>> GPR20: 0000000000000000 0000000000000000 0000000000000000 >>> 0000000000000000 >>> GPR24: 0000000000000000 c0000000018b9248 c0000000018e36d8 >>> c0000000019738a8 >>> GPR28: 0000000000000007 c0000000fffffc68 c0000000fea83bf0 >>> 0000000000000010 >>> NIP [c0000000018f2bbc] read_drconf_v1_cell+0x50/0x9c >>> LR [c0000000018f2bb4] read_drconf_v1_cell+0x48/0x9c >>> Call Trace: >>> [c0000000fea83b50] [c0000000018f2bb4] read_drconf_v1_cell+0x48/0x9c >>> (unreliable) >>> [c0000000fea83b90] [c0000000018f305c] drmem_init+0x13c/0x2ec >>> [c0000000fea83c40] [c0000000018e4288] do_one_initcall+0xdc/0x1ac >>> [c0000000fea83d00] [c0000000018e45d4] kernel_init_freeable+0x27c/0x358 >>> [c0000000fea83dc0] [c00000000000d6bc] kernel_init+0x2c/0x160 >>> [c0000000fea83e30] [c00000000000bc20] ret_from_kernel_thread+0x5c/0xbc >>> Instruction dump: >>> 7c7f1b78 60000000 60000000 7c240b78 3d22ffdc 3929f0a4 e95e0000 >>> e8690002 >>> f9440021 4806657d 60000000 e9210020 <f87f0000> 39090004 39490010 >>> f9010020 >>> ---[ end trace bd9f49f482d30e03 ]--- >>> >>> Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b >>> >>> WARNING: CPU: 1 PID: 1 at drivers/tty/vt/vt.c:3883 >>> do_unblank_screen+0x1f0/0x270 >>> CPU: 1 PID: 1 Comm: swapper/0 Tainted: G D 4.16.0- >>> rc1v4.16-rc1 #8 >>> NIP: c0000000009aa800 LR: c0000000009aa63c CTR: c00000000148f5f0 >>> REGS: c0000000fea832c0 TRAP: 0700 Tainted: >>> G D (4.16.0-rc1v4.16-rc1) >>> MSR: 8000000002029033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 28002222 XER: >>> 20000000 >>> CFAR: c0000000009aa658 SOFTE: 1 >>> GPR00: c0000000009aa63c c0000000fea83540 c000000001bd8400 >>> 0000000000000000 >>> GPR04: 0000000000000001 c0000000fb0c200e 0000000000001dd7 >>> c0000000fea834d0 >>> GPR08: 00000000fe430000 0000000000000000 0000000000000000 >>> 0000000000000001 >>> GPR12: 0000000028002428 c00000000fb40980 c00000000000d698 >>> 0000000000000000 >>> GPR16: 0000000000000000 0000000000000000 0000000000000000 >>> 0000000000000000 >>> GPR20: 0000000000000000 0000000000000000 0000000000000000 >>> 0000000000000000 >>> GPR24: c0000000fea40000 c0000000feadf910 c000000001a4a7a8 >>> c000000001cc4ea0 >>> GPR28: c00000000173f4f0 c000000001cc4ec8 0000000000000000 >>> 0000000000000000 >>> NIP [c0000000009aa800] do_unblank_screen+0x1f0/0x270 >>> LR [c0000000009aa63c] do_unblank_screen+0x2c/0x270 >>> Call Trace: >>> [c0000000fea83540] [c0000000009aa63c] do_unblank_screen+0x2c/0x270 >>> (unreliable) >>> [c0000000fea835b0] [c0000000008a2a70] bust_spinlocks+0x40/0x80 >>> [c0000000fea835d0] [c0000000000da90c] panic+0x1b8/0x32c >>> [c0000000fea83670] [c0000000000e1bd4] do_exit+0xcb4/0xcc0 >>> [c0000000fea83730] [c0000000000275fc] die+0x29c/0x450 >>> [c0000000fea837c0] [c000000000053f88] bad_page_fault+0xe8/0x160 >>> [c0000000fea83830] [c000000000028a90] slb_miss_bad_addr+0x40/0x90 >>> [c0000000fea83860] [c000000000008b08] bad_addr_slb+0x158/0x160 >>> --- interrupt: 380 at read_drconf_v1_cell+0x50/0x9c >>> LR = read_drconf_v1_cell+0x48/0x9c >>> [c0000000fea83b90] [c0000000018f305c] drmem_init+0x13c/0x2ec >>> [c0000000fea83c40] [c0000000018e4288] do_one_initcall+0xdc/0x1ac >>> [c0000000fea83d00] [c0000000018e45d4] kernel_init_freeable+0x27c/0x358 >>> [c0000000fea83dc0] [c00000000000d6bc] kernel_init+0x2c/0x160 >>> [c0000000fea83e30] [c00000000000bc20] ret_from_kernel_thread+0x5c/0xbc >>> Instruction dump: >>> 3c62ffbf 38840001 7c8407b4 38639ca8 4b7ae0ed 60000000 38210070 >>> e8010010 >>> ebc1fff0 ebe1fff8 7c0803a6 4e800020 <0fe00000> 4bfffe58 60000000 >>> 60420000 >>> ---[ end trace bd9f49f482d30e04 ]--- >>> Rebooting in 10 seconds.. >>> >> >> >
