Description of problem: Specifically it crashes with the stack trace below. I will attach the full build log and root log. [ 120.187603] ------------[ cut here ]------------ [ 120.188161] kernel BUG at lib/ioremap.c:64! [ 120.188969] Internal error: Oops - BUG: 0 [#1] SMP [ 120.189697] Modules linked in: [ 120.190685] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-0.rc0.git2.1.fc26.aarch64 #1 [ 120.191295] Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015 [ 120.191925] task: fffffe0024473000 task.stack: fffffe0024500000 [ 120.192685] PC is at ioremap_page_range+0x168/0x2f8 [ 120.193174] LR is at pci_remap_iospace+0x68/0x88 [ 120.193629] pc : [<fffffc0008487c48>] lr : [<fffffc00084fc6e0>] pstate: 80000045 [ 120.194127] sp : fffffe0024503a80 [ 120.194463] x29: fffffe0024503a80 x28: 00000200c01f0000 [ 120.195219] x27: 0140000000000800 x26: fffffdff7ee10000 [ 120.195774] x25: 0400000000000001 x24: 00e8000000000707 [ 120.196360] x23: fffffc0009ff7fd8 x22: fffffdff7ee10000 [ 120.196932] x21: fffffdff7ee00000 x20: fffffdff7ee0ffff [ 120.197532] x19: 000000003eff0000 x18: 0000000000000010 [ 120.198164] x17: 0000000000000000 x16: 0000000000000000 [ 120.198702] x15: 0000000000000006 x14: fffffc0089cc42f7 [ 120.199326] x13: fffffc0009cc4305 x12: 00000000000000d7 [ 120.199895] x11: 0000000000000001 x10: 00000000000000d8 [ 120.200538] x9 : 0000000000000001 x8 : fffffe0024500000 [ 120.201152] x7 : fffffc0009002e68 x6 : 00000200c01f0000 [ 120.201723] x5 : fffffe000104f700 x4 : 000000000000ffff [ 120.202307] x3 : fffffc0008ee5eb0 x2 : 0000000040000000 [ 120.202959] x1 : 0000000041040000 x0 : 00e800003eff0707 [ 120.203516] [ 120.203810] Process swapper/0 (pid: 1, stack limit = 0xfffffe0024500020) [ 120.204412] Stack: (0xfffffe0024503a80 to 0xfffffe0024504000) [ 120.205056] 3a80: fffffe0024503b00 fffffc00084fc6e0 fffffe0025271580 000000003eff0000 [ 120.205619] 3aa0: 0000000000000000 fffffc0008f8d908 fffffe0025271f80 fffffc0008c251c8 [ 120.206174] 3ac0: fffffe0024503b90 0000000000000000 fffffe0025271580 0000000000000000 [ 120.206758] 3ae0: fffffe0024503b20 fffffc000851f60c fffffdff7e80137c fffffe002476b010 [ 120.207280] 3b00: fffffe0024503b20 fffffc000851f6e4 fffffe0025270280 fffffe002476b010 [ 120.207841] 3b20: fffffe0024503be0 fffffc000851f7e4 fffffe002476b000 fffffe002476b010 [ 120.208396] 3b40: fffffc0008f8dab8 fffffc0009f88000 0000000000000000 0000000000000000 [ 120.208940] 3b60: fffffc0008d063c0 fffffc0008d86398 fffffc0008e520e0 fffffc000894d8cc [ 120.209542] 3b80: fffffe0024503bb0 fffffc00087b5bc0 fffffe002527c500 fffffe0025270380 [ 120.210074] 3ba0: 000000003eff0000 fffffe002fffd380 fffffe0024503be0 fffffc000851f7d8 [ 120.210587] 3bc0: fffffe002476b000 fffffe002476b010 fffffc0008f8dab8 fffffc0009f88000 [ 120.211122] 3be0: fffffe0024503c00 fffffc000862a760 00000000fffffffe fffffe002476b010 [ 120.211646] 3c00: fffffe0024503c30 fffffc0008627ac8 fffffe002476b010 0000000000000000 [ 120.212227] 3c20: fffffc0008f8dae0 0000000000000000 fffffe0024503c70 fffffc0008627e54 [ 120.212736] 3c40: fffffe002476b010 fffffe002476b070 fffffc0008f8dae0 0000000000000000 [ 120.213272] 3c60: fffffc0008fc4000 fffffc0008d20464 fffffe0024503ca0 fffffc00086252a8 [ 120.213808] 3c80: 0000000000000000 fffffc0008f8dae0 fffffc0008627d28 fffffc0008d86398 [ 120.214364] 3ca0: fffffe0024503ce0 fffffc0008627130 fffffc0008f8dae0 fffffe0025168b00 [ 120.214933] 3cc0: fffffc0008fc5768 0000000000000000 fffffe0024043930 fffffe0024681098 [ 120.215434] 3ce0: fffffe0024503d00 fffffc0008626b50 fffffc0008f8dae0 fffffe0025168b00 [ 120.215974] 3d00: fffffe0024503d40 fffffc0008628ee0 fffffc0008f8dae0 0000000000000000 [ 120.216521] 3d20: 0000000000000000 0000000000000006 fffffc0009060000 0000000000000000 [ 120.217069] 3d40: fffffe0024503d60 fffffc000862a684 fffffc0008f8dab8 0000000000000000 [ 120.217627] 3d60: fffffe0024503d80 fffffc0008d5c5ac fffffc0008d5c594 fffffe0024500000 [ 120.218180] 3d80: fffffe0024503d90 fffffc0008083594 fffffe0024503e00 fffffc0008d20dec [ 120.218697] 3da0: 0000000000000102 fffffc0009060000 fffffc0008d863a8 0000000000000006 [ 120.219241] 3dc0: fffffc0008d20d00 fffffe0024503e00 fffffc0008083550 0000000080000045 [ 120.219761] 3de0: 0000000000000000 0000000600000006 ffffffffffffffff fffffc0008d063c0 [ 120.220370] 3e00: fffffe0024503ea0 fffffc0008945568 fffffc0008945550 0000000000000000 [ 120.220926] 3e20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.221439] 3e40: 0000000000000000 0000000000000000 0000000000000000 0000000000000001 [ 120.222022] 3e60: 0000000000000001 0000000000000000 0000000000000000 0000000000000000 [ 120.222528] 3e80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.223071] 3ea0: 0000000000000000 fffffc0008083330 fffffc0008945550 0000000000000000 [ 120.223580] 3ec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.224110] 3ee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.224671] 3f00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.225201] 3f20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.225714] 3f40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.226238] 3f60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.226737] 3f80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.227301] 3fa0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.227896] 3fc0: 0000000000000000 0000000000000005 0000000000000000 0000000000000000 [ 120.228436] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 120.229169] Call trace: [ 120.229607] Exception stack(0xfffffe00245038a0 to 0xfffffe00245039d0) [ 120.230126] 38a0: 000000003eff0000 0000040000000000 fffffe0024503a80 fffffc0008487c48 [ 120.230666] 38c0: 0000000080000045 000000000000003d fffffe0024503910 fffffc0008137804 [ 120.231213] 38e0: fffffc0008082e7c fffffe0024473000 0000000000000001 fffffc0008487c48 [ 120.231759] 3900: 0000000080000045 00e8000000000707 fffffe0024503940 fffffc00081378b0 [ 120.232279] 3920: fffffe0024503950 0000040000000000 fffffe0024503a80 0000000000000000 [ 120.232788] 3940: fffffe002ff14080 fffffc0008082e7c 00e800003eff0707 0000000041040000 [ 120.233327] 3960: 0000000040000000 fffffc0008ee5eb0 000000000000ffff fffffe000104f700 [ 120.233856] 3980: 00000200c01f0000 fffffc0009002e68 fffffe0024500000 0000000000000001 [ 120.234421] 39a0: 00000000000000d8 0000000000000001 00000000000000d7 fffffc0009cc4305 [ 120.234936] 39c0: fffffc0089cc42f7 0000000000000006 [ 120.235509] [<fffffc0008487c48>] ioremap_page_range+0x168/0x2f8 [ 120.236068] [<fffffc00084fc6e0>] pci_remap_iospace+0x68/0x88 [ 120.236546] [<fffffc000851f6e4>] pci_host_common_probe+0x24c/0x318 [ 120.237070] [<fffffc000851f7e4>] gen_pci_probe+0x34/0x40 [ 120.237554] [<fffffc000862a760>] platform_drv_probe+0x60/0xc8 [ 120.238072] [<fffffc0008627ac8>] driver_probe_device+0x240/0x4a0 [ 120.238560] [<fffffc0008627e54>] __driver_attach+0x12c/0x130 [ 120.239063] [<fffffc00086252a8>] bus_for_each_dev+0x70/0xb0 [ 120.239505] [<fffffc0008627130>] driver_attach+0x30/0x40 [ 120.239953] [<fffffc0008626b50>] bus_add_driver+0x200/0x2b8 [ 120.240423] [<fffffc0008628ee0>] driver_register+0x68/0x100 [ 120.240887] [<fffffc000862a684>] __platform_driver_register+0x54/0x60 [ 120.241383] [<fffffc0008d5c5ac>] gen_pci_driver_init+0x18/0x20 [ 120.241897] [<fffffc0008083594>] do_one_initcall+0x44/0x138 [ 120.242352] [<fffffc0008d20dec>] kernel_init_freeable+0x23c/0x2dc [ 120.242857] [<fffffc0008945568>] kernel_init+0x18/0x110 [ 120.243323] [<fffffc0008083330>] ret_from_fork+0x10/0x20 [ 120.243988] Code: 54fff801 52800000 1400005e d503201f (d4210000) [ 120.246605] ---[ end trace 7472e9b7de6ada40 ]--- Version-Release number of selected component (if applicable): kernel 4.9.0-0.rc0.git2.1.fc26 qemu 2:2.7.0-1.fc26 libvirt 2.2.0-1.fc26 How reproducible: Unknown, at least once. Steps to Reproduce: 1. Run libguestfs-test-tool
Created attachment 1207890 [details] build.log
Created attachment 1207891 [details] root.log
Reproduces for me as well. Thank you Rich for the report.
*** This bug has been marked as a duplicate of bug 1382530 ***