Control: reassign -1 src:linux
Contorl: forcemerge 934304 934991
Hi,
On Sat, Aug 17, 2019 at 09:18:29PM +0200, JCGoran wrote:
> Package: powertop
> Version: 2.10-1
> Severity: grave
> Justification: renders package unusable
>
> Dear Maintainer,
>
> *** Reporter, please consider answering these questions, where appropriate ***
>
> * What led up to the situation?
> Running `powertop` or `powertop --auto-tune`
> * What was the outcome of this action?
> powertop gets terminated with SIGKILL (according to stack trace)
> * What outcome did you expect instead?
> powertop should run normally
>
> It worked fine on the previous unstable kernel (4.19.0-5 if I'm not mistaken).
>
> Below is the output from `dmesg`:
> -------------------------------------------------------------------------------
> [ 1047.234256] BUG: kernel NULL pointer dereference, address: 0000000000000000
> [ 1047.234264] #PF: supervisor instruction fetch in kernel mode
> [ 1047.234267] #PF: error_code(0x0010) - not-present page
> [ 1047.234270] PGD 0 P4D 0
> [ 1047.234277] Oops: 0010 [#14] SMP PTI
> [ 1047.234283] CPU: 7 PID: 25879 Comm: powertop Tainted: G D
> 5.2.0-2-amd64 #1 Debian 5.2.7-1
> [ 1047.234287] Hardware name: LENOVO 20L8S8TB00/20L8S8TB00, BIOS N22ET50W
> (1.27 ) 11/07/2018
> [ 1047.234293] RIP: 0010:0x0
> [ 1047.234301] Code: Bad RIP value.
> [ 1047.234304] RSP: 0018:ffffb76b0ae97cd8 EFLAGS: 00010246
> [ 1047.234308] RAX: 0000000000000000 RBX: ffff9f55ab10de00 RCX:
> 0000000000000001
> [ 1047.234311] RDX: ffff9f55de602c00 RSI: ffff9f55ab10de00 RDI:
> ffff9f55e0f2dbc0
> [ 1047.234314] RBP: ffff9f55e0f2dbc0 R08: 0000000000000000 R09:
> 0000000000000000
> [ 1047.234317] R10: ffff9f55e0edd9c0 R11: 0000000000000000 R12:
> ffff9f55ab10de10
> [ 1047.234319] R13: ffffffffa6d1cdd0 R14: 0000000000000000 R15:
> ffff9f55ab10de00
> [ 1047.234324] FS: 00007f9ac557a740(0000) GS:ffff9f55e15c0000(0000)
> knlGS:0000000000000000
> [ 1047.234327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1047.234330] CR2: ffffffffffffffd6 CR3: 0000000451108002 CR4:
> 00000000003606e0
> [ 1047.234333] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 1047.234336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
> 0000000000000400
> [ 1047.234338] Call Trace:
> [ 1047.234350] do_dentry_open+0x13a/0x370
> [ 1047.234360] path_openat+0x2c6/0x1480
> [ 1047.234366] ? terminate_walk+0xe6/0x100
> [ 1047.234372] ? path_lookupat.isra.48+0xa3/0x220
> [ 1047.234379] ? reuse_swap_page+0x105/0x320
> [ 1047.234386] do_filp_open+0x93/0x100
> [ 1047.234393] ? __check_object_size+0x15d/0x189
> [ 1047.234401] do_sys_open+0x184/0x220
> [ 1047.234409] do_syscall_64+0x53/0x130
> [ 1047.234417] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> [ 1047.234422] RIP: 0033:0x7f9ac56d71ae
> [ 1047.234427] Code: 25 00 00 41 00 3d 00 00 41 00 74 48 48 8d 05 59 65 0d 00
> 8b 00 85 c0 75 69 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff
> ff ff 0f 05 <48> 3d 00 f0 ff ff 0f 87 a6 00 00 00 48 8b 4c 24 28 64 48 33 0c
> 25
> [ 1047.234430] RSP: 002b:00007ffeb3e55600 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000101
> [ 1047.234435] RAX: ffffffffffffffda RBX: 00005602c630e870 RCX:
> 00007f9ac56d71ae
> [ 1047.234437] RDX: 0000000000000000 RSI: 00007ffeb3e569a0 RDI:
> 00000000ffffff9c
> [ 1047.234440] RBP: 0000000000000008 R08: 0000000000000008 R09:
> 0000000000000001
> [ 1047.234443] R10: 0000000000000000 R11: 0000000000000246 R12:
> 00007f9ac5aed805
> [ 1047.234445] R13: 00007f9ac5aed805 R14: 0000000000000001 R15:
> 00005602c4f2efd0
> [ 1047.234449] Modules linked in: ctr ccm fuse msr overlay arc4 intel_rapl
> iwlmvm mac80211 snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc
> x86_pkg_temp_thermal snd_soc_sst_dsp intel_powerclamp btusb coretemp
> snd_hda_ext_core iwlwifi mei_wdt snd_hda_codec_hdmi snd_soc_acpi
> _intel_match kvm_intel snd_soc_acpi snd_hda_codec_realtek nls_ascii btrtl
> snd_hda_codec_generic snd_soc_core nls_cp437 btbcm btintel k
> vm vfat fat bluetooth irqbypass snd_compress efi_pstore uvcvideo
> snd_hda_intel intel_cstate videobuf2_vmalloc elan_i2c sg wmi_bmof joy
> dev intel_uncore serio_raw videobuf2_memops intel_rapl_perf snd_hda_codec
> efivars videobuf2_v4l2 drbg cfg80211 pcspkr snd_hda_core vid
> eobuf2_common iTCO_wdt iTCO_vendor_support thinkpad_acpi watchdog snd_hwdep
> videodev snd_pcm nvram snd_timer hid_multitouch ledtrig_au
> dio ansi_cprng media mei_me snd ucsi_acpi ecdh_generic soundcore typec_ucsi
> processor_thermal_device ecc pcc_cpufreq int3403_thermal m
> ei tpm_crb idma64 intel_pch_thermal intel_soc_dts_iosf typec battery
> [ 1047.234515] int340x_thermal_zone rfkill ac tpm_tis tpm_tis_core evdev tpm
> int3400_thermal acpi_thermal_rel acpi_pad rng_core parpo
> rt_pc ppdev lp parport efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache
> jbd2 btrfs xor zstd_decompress zstd_compress raid6_pq li
> bcrc32c crc32c_generic sd_mod dm_crypt hid_generic dm_mod usbhid hid uas
> usb_storage scsi_mod crct10dif_pclmul crc32_pclmul crc32c_int
> el ghash_clmulni_intel i915 i2c_algo_bit aesni_intel drm_kms_helper
> i2c_designware_platform i2c_designware_core xhci_pci thunderbolt x
> hci_hcd drm aes_x86_64 psmouse crypto_simd e1000e cryptd usbcore glue_helper
> nvme nvme_core i2c_i801 intel_lpss_pci intel_lpss mfd_cor
> e usb_common wmi video button
> [ 1047.234571] CR2: 0000000000000000
> [ 1047.234577] ---[ end trace 3c6993d1abe0ca5a ]---
> [ 1047.263116] RIP: 0010:0x0
> [ 1047.263123] Code: Bad RIP value.
> [ 1047.263124] RSP: 0018:ffffb76b021ebcd8 EFLAGS: 00010246
> [ 1047.263126] RAX: 0000000000000000 RBX: ffff9f55dabfa800 RCX:
> 0000000000000001
> -------------------------------------------------------------------------------
> end of `dmesg` output
>
> The last few lines of `strace powertop` are:
> -------------------------------------------------------------------------------
> access("/dev/cpu/7/msr", R_OK) = 0
> openat(AT_FDCWD, "/dev/cpu/7/msr", O_RDONLY) = 4
> pread64(4, "A\2232\26#\0\0\0", 8, 232) = 8
> close(4) = 0
> read(3, "", 8191) = 0
> close(3) = 0
> access("/sys/class/drm/card0/power/rc6_residency_ms", R_OK) = 0
> openat(AT_FDCWD, "/sys/kernel/debug/tracing/events/power/cpu_idle/id",
> O_RDONLY) = ?
> +++ killed by SIGKILL +++
> -------------------------------------------------------------------------------
> end of `strace powertop` output
>
> Is this a kernel bug, or a powertop bug? Or is there something
> horribly wrong with my setup?
This is #934304 (for linux) and pending at the moment.
Regards,
Salvatore
