Additional info: reporter: libreport-2.9.3 BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 IP: nvkm_object_unmap+0x5/0x20 [nouveau] PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI Modules linked in: rfcomm fuse nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ccm ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc 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 bnep sunrpc snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_hda_codec intel_powerclamp snd_hda_core coretemp kvm_intel kvm btusb arc4 iTCO_wdt btrtl btbcm irqbypass btintel snd_hwdep bluetooth crct10dif_pclmul iwldvm iTCO_vendor_support mac80211 mei_wdt iwlwifi crc32_pclmul snd_seq snd_seq_device ghash_clmulni_intel ecdh_generic intel_cstate intel_uncore snd_pcm joydev thinkpad_acpi cfg80211 snd_timer snd rfkill wmi_bmof lpc_ich intel_ips mei_me shpchp tpm_tis tpm_tis_core tpm i2c_i801 soundcore mei acpi_cpufreq nouveau ata_generic hid_logitech_hidpp mxm_wmi i2c_algo_bit crc32c_intel drm_kms_helper firewire_ohci serio_raw ttm sdhci_pci sdhci pata_acpi drm e1000e mmc_core hid_logitech_dj firewire_core crc_itu_t ptp pps_core video wmi CPU: 0 PID: 2601 Comm: gsd-wacom Not tainted 4.15.15-300.fc27.x86_64 #1 Hardware name: LENOVO 2537CTO/2537CTO, BIOS 6IET85WW (1.45 ) 02/14/2013 RIP: 0010:nvkm_object_unmap+0x5/0x20 [nouveau] RSP: 0018:ffffbb6f45ea7c98 EFLAGS: 00010282 RAX: ffffffffc039f400 RBX: ffff9cfaa1487918 RCX: 0000000000000018 RDX: ffffffffc02bd9e0 RSI: ffff9cfaa1487938 RDI: 0000000000000000 RBP: ffff9cfaa1487908 R08: 00000000000250c0 R09: ffffffffc02baca3 R10: fffff63a480799c0 R11: ffffffff8695b1ed R12: ffff9cfaa1487938 R13: 00000020b6597854 R14: ffff9cfa68fa0020 R15: 0000000000000020 FS: 00007f0a6bdcef00(0000) GS:ffff9cfabbc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000223984000 CR4: 00000000000006f0 Call Trace: nvkm_object_dtor+0x9a/0x160 [nouveau] nvkm_object_del+0x24/0xa0 [nouveau] nvkm_ioctl_new+0x260/0x2b0 [nouveau] ? nvkm_fifo_chan_dtor+0x100/0x100 [nouveau] ? nvkm_object_new_+0x60/0x60 [nouveau] nvkm_ioctl+0x10a/0x240 [nouveau] usif_ioctl+0x62e/0x740 [nouveau] nouveau_drm_ioctl+0xad/0xc0 [nouveau] do_vfs_ioctl+0xa4/0x620 SyS_ioctl+0x74/0x80 do_syscall_64+0x74/0x180 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x7f0a6810f0f7 RSP: 002b:00007ffc8ca537f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f0a6810f0f7 RDX: 000055b459664b00 RSI: 00000000c0386447 RDI: 0000000000000006 RBP: 000055b459664b00 R08: 000055b45965bb80 R09: 000055b45965e530 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000c0386447 R13: 0000000000000006 R14: 000055b459664b38 R15: 0000000000000000 Code: ff c3 0f 1f 40 00 66 66 66 66 90 48 8b 07 48 8b 40 28 48 85 c0 74 05 e9 6a 5f 94 c5 b8 ed ff ff ff c3 0f 1f 40 00 66 66 66 66 90 <48> 8b 07 48 8b 40 30 48 85 c0 74 05 e9 4a 5f 94 c5 b8 ed ff ff RIP: nvkm_object_unmap+0x5/0x20 [nouveau] RSP: ffffbb6f45ea7c98 CR2: 0000000000000000
Created attachment 1421499 [details] File: dmesg
I see the same behaviour and stack trace with all Fedora kernels > 4.14. Computer is not bootable.
Created attachment 1429514 [details] dmesg on macbook 7.1
Bisected to commit: commit fd542a3e525c9f7a7de186cb24208c035bcea2d1 (HEAD, refs/bisect/bad) Author: Ben Skeggs <bskeggs> Date: Wed Nov 1 03:56:19 2017 +1000 drm/nouveau/mmu/nv50,g84: implement new vmm backend With that commit screen goes blank, but I don't get the above call trace. However, commits after do not work either.
Any updates on this bug? Situation is still the same with kernel 4.16.11.
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Fedora 27 changed to end-of-life (EOL) status on 2018-11-30. Fedora 27 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.