I tried Fedora Rawhide (26's nouveau doesn't work with my graphics card), with kernel 4.14.0-0.rc2.git4.1.fc28.x86_64, repeatedly starting atom and chrome is the easiest way to trigger it.
I also tried security=none and disabling hyperthreading (even though I should have the microcode fix for the Skylake/Kaby Lake HT bug) on Ubuntu's 4.13 kernel, it didn't help. Here's the Fedora log: [ 2608.355672] BUG: unable to handle kernel NULL pointer dereference at 00000000000007e0 [ 2608.355857] IP: security_vm_enough_memory_mm+0x38/0x60 [ 2608.356045] PGD 7e7c61067 P4D 7e7c61067 PUD 7261a8067 PMD 0 [ 2608.356227] Oops: 0002 [#1] SMP [ 2608.356394] Modules linked in: xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun fuse nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp nouveau kvm_intel kvm irqbypass ttm ath10k_pci snd_usb_audio drm_kms_helper ath10k_core snd_hda_codec_realtek intel_uncore btusb drm snd_hda_codec_hdmi snd_hda_codec_generic btrtl intel_rapl_perf snd_usbmidi_lib [ 2608.357201] mac80211 btbcm wil6210 snd_rawmidi eeepc_wmi snd_hda_intel joydev btintel asus_wmi bluetooth snd_hda_codec iTCO_wdt sparse_keymap ath iTCO_vendor_support video cfg80211 snd_hda_core wmi_bmof mxm_wmi ecdh_generic snd_hwdep rfkill snd_seq tpm_tis snd_seq_device tpm_tis_core tpm snd_pcm snd_timer snd mei_me soundcore mei ioatdma i2c_i801 shpchp wmi nls_utf8 isofs squashfs zstd_decompress xxhash 8021q garp mrp stp llc igb crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit ghash_clmulni_intel dca e1000e nvme nvme_core ptp pps_core hid_logitech_hidpp hid_logitech_dj uas usb_storage sunrpc scsi_transport_iscsi loop [ 2608.357883] CPU: 5 PID: 5716 Comm: atom Not tainted 4.14.0-0.rc2.git4.1.fc28.x86_64 #1 [ 2608.358086] Hardware name: System manufacturer System Product Name/PRIME X299-DELUXE, BIOS 0702 08/08/2017 [ 2608.358287] task: ffff8a6e733abb80 task.stack: ffff9f7809fb8000 [ 2608.358475] RIP: 0010:security_vm_enough_memory_mm+0x38/0x60 [ 2608.358665] RSP: 0018:ffff9f7809fbbcc0 EFLAGS: 00010283 [ 2608.358878] RAX: 0000000000000800 RBX: ffffffff9e06fae8 RCX: 0000000000000000 [ 2608.359080] RDX: ffff8a6d64b14a28 RSI: 0000000000000800 RDI: ffff8a6d65e7bc00 [ 2608.359283] RBP: ffff9f7809fbbcd8 R08: ffffffff9d276a10 R09: 0000000000000d10 [ 2608.359477] R10: 0000000000000000 R11: ffff8a6e733abb80 R12: ffff8a6d65e7bc00 [ 2608.359672] R13: 0000000000000800 R14: 0000000000000800 R15: 0000000000000000 [ 2608.359892] FS: 00007f62b21e9200(0000) GS:ffff8a6eb7400000(0000) knlGS:0000000000000000 [ 2608.360106] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2608.360331] CR2: 00000000000007e0 CR3: 000000074dc8a001 CR4: 00000000003606e0 [ 2608.360548] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2608.360801] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2608.360802] Call Trace: [ 2608.360805] copy_process.part.26+0x1a13/0x1e70 [ 2608.360810] _do_fork+0xee/0x720 [ 2608.360814] ? __fd_install+0x5/0x300 [ 2608.360816] ? __fd_install+0x210/0x300 [ 2608.360817] ? __fd_install+0xf9/0x300 [ 2608.360819] SyS_clone+0x19/0x20 [ 2608.360821] do_syscall_64+0x6c/0x1f0 [ 2608.360824] entry_SYSCALL64_slow_path+0x25/0x25 [ 2608.360825] RIP: 0033:0x3cfe8f1 [ 2608.360825] RSP: 002b:00002d66410ae210 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 2608.360826] RAX: ffffffffffffffda RBX: 00002d66410ae210 RCX: 0000000003cfe8f1 [ 2608.360827] RDX: 0000000000000000 RSI: 00007f62b2213e80 RDI: 0000000000800600 [ 2608.360827] RBP: 00002d66410ae2a0 R08: 0000000000000000 R09: 0000000003cfe5c0 [ 2608.360828] R10: 0000000000000000 R11: 0000000000000202 R12: 00002d6640df83f0 [ 2608.360828] R13: 00007f62b2213e90 R14: 0000000000000000 R15: 00002d6640df8410 [ 2608.360831] Code: 53 48 8b 1d bb a5 0b 02 49 89 fc 49 89 f5 48 81 fb 90 ce 4e 9f 75 0e eb 1d 48 8b 1b 48 81 fb 90 ce 4e 9f 74 11 4c 89 ee 4c 89 e7 <ff> 53 18 85 c0 7f e7 31 d2 eb 05 ba 01 00 00 00 4c 89 ee 4c 89 [ 2608.360853] RIP: security_vm_enough_memory_mm+0x38/0x60 RSP: ffff9f7809fbbcc0 [ 2608.360853] CR2: 00000000000007e0 [ 2608.365592] ---[ end trace 418c5874be346fb4 ]--- [ 2608.365594] BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:33 [ 2608.365595] in_atomic(): 0, irqs_disabled(): 1, pid: 5716, name: atom [ 2608.365596] INFO: lockdep is turned off. [ 2608.365596] irq event stamp: 0 [ 2608.365597] hardirqs last enabled at (0): [< (null)>] (null) [ 2608.365599] hardirqs last disabled at (0): [<ffffffff9d0b1155>] copy_process.part.26+0x575/0x1e70 [ 2608.365600] softirqs last enabled at (0): [<ffffffff9d0b1155>] copy_process.part.26+0x575/0x1e70 [ 2608.365600] softirqs last disabled at (0): [< (null)>] (null) [ 2608.365602] CPU: 5 PID: 5716 Comm: atom Tainted: G D 4.14.0-0.rc2.git4.1.fc28.x86_64 #1 [ 2608.365602] Hardware name: System manufacturer System Product Name/PRIME X299-DELUXE, BIOS 0702 08/08/2017 [ 2608.365603] Call Trace: [ 2608.365605] dump_stack+0x8e/0xd6 [ 2608.365607] ___might_sleep+0x164/0x250 [ 2608.365608] __might_sleep+0x4a/0x80 [ 2608.365611] exit_signals+0x33/0x240 [ 2608.365612] do_exit+0xb9/0xda0 [ 2608.365616] rewind_stack_do_exit+0x17/0x20 [ 2608.365617] RIP: 0033:0x3cfe8f1 [ 2608.365618] RSP: 002b:00002d66410ae210 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 2608.365619] RAX: ffffffffffffffda RBX: 00002d66410ae210 RCX: 0000000003cfe8f1 [ 2608.365619] RDX: 0000000000000000 RSI: 00007f62b2213e80 RDI: 0000000000800600 [ 2608.365620] RBP: 00002d66410ae2a0 R08: 0000000000000000 R09: 0000000003cfe5c0 [ 2608.365620] R10: 0000000000000000 R11: 0000000000000202 R12: 00002d6640df83f0 [ 2608.365621] R13: 00007f62b2213e90 R14: 0000000000000000 R15: 00002d6640df8410 [ 2651.307862] atom[5660]: segfault at 498 ip 00007ffa0c6c99b2 sp 00007ffe0aee5ff0 error 4 in libnode.so[7ffa0bcc0000+12ba000] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1720263 Title: BUG: unable to handle kernel paging request at ffffffffffffffe1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720263/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
