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kos
n00b
n00b


Joined: 28 May 2003
Posts: 65
Location: Mountain View, CA

PostPosted: Tue Apr 21, 2020 6:00 am    Post subject: kernel > 5.5.8: page faults Reply with quote

Getting page faults on gentoo-sources > 5.5.8, below is kmesg from 5.6.5
5.5.8 is rock solid and memtest isn't finding any errors[/code]. Can't find any mentions of this on the web or bugzilla.kernel.org
How should I proceed? Try to get a kdump on vanilla?

Code:

Apr 20 22:34:29 precision kernel: BUG: unable to handle page fault for address: ffffa291be0db166
Apr 20 22:34:29 precision kernel: #PF: supervisor read access in kernel mode
Apr 20 22:34:29 precision kernel: #PF: error_code(0x0000) - not-present page
Apr 20 22:34:29 precision kernel: PGD 1055c91067 P4D 1055c91067 PUD 0
Apr 20 22:34:29 precision kernel: Oops: 0000 [#1] SMP NOPTI
Apr 20 22:34:29 precision kernel: CPU: 1 PID: 2731 Comm: ld Tainted: G     U            5.6.5-gentoo #2
Apr 20 22:34:29 precision kernel: Hardware name: Dell Inc. Precision 7540/0CYJDT, BIOS 1.6.0 12/10/2019
Apr 20 22:34:29 precision kernel: RIP: 0010:unmap_page_range+0x3be/0x910
Apr 20 22:34:29 precision kernel: Code: 02 00 85 c0 0f 84 13 02 00 00 48 c7 03 00 00 00 00 49 8d 87 00 10 00 00 48 83 c3 08 4c 39 7c 24 18 0f 84 6a 01 00 00 49 89 c7 <4c> 8b 23 49 8d af 00 f0 ff ff 49 f7 c4 9f ff ff ff 74 d4 48 8b 44
Apr 20 22:34:29 precision kernel: RSP: 0018:ffffa29207b23ca8 EFLAGS: 00010287
Apr 20 22:34:29 precision kernel: RAX: 000055f7d8b4e000 RBX: ffffa291be0db166 RCX: 0000000000000001
Apr 20 22:34:29 precision kernel: RDX: 0000000000000000 RSI: ffffc3b4fba20000 RDI: ffffa29207b23df8
Apr 20 22:34:29 precision kernel: RBP: ffffc3b4fba20000 R08: ffffc3b4fd9ba164 R09: 0000000000000010
Apr 20 22:34:29 precision kernel: R10: ffffc3b4fc0ee088 R11: ffffc3b4fc0ee080 R12: 8000000ee8800067
Apr 20 22:34:29 precision kernel: R13: ffffc3b4fba20000 R14: ffffa29207b23df8 R15: 000055f7d8b4e000
Apr 20 22:34:29 precision kernel: FS:  0000000000000000(0000) GS:ffff9ff35c240000(0000) knlGS:0000000000000000
Apr 20 22:34:29 precision kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 20 22:34:29 precision kernel: CR2: ffffa291be0db166 CR3: 00000001b400a003 CR4: 00000000003606e0
Apr 20 22:34:29 precision kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 20 22:34:29 precision kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Apr 20 22:34:29 precision kernel: Call Trace:
Apr 20 22:34:29 precision kernel:  ? unmap_page_range+0x4e6/0x910
Apr 20 22:34:29 precision kernel:  ? unmap_vmas+0x75/0xf0
Apr 20 22:34:29 precision kernel:  ? exit_mmap+0x98/0x180
Apr 20 22:34:29 precision kernel:  ? mmput+0x29/0xd0
Apr 20 22:34:29 precision kernel:  ? do_exit+0x2ef/0xaa0
Apr 20 22:34:29 precision kernel:  ? do_group_exit+0x35/0x90
Apr 20 22:34:29 precision kernel:  ? __x64_sys_exit_group+0xf/0x10
Apr 20 22:34:29 precision kernel:  ? do_syscall_64+0x3d/0x130
Apr 20 22:34:29 precision kernel:  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
Apr 20 22:34:29 precision kernel: Modules linked in: tun md4 cifs serpent_avx2 serpent_avx_x86_64 crypto_simd glue_helper dm_zero ixgb ixgbe mdio igb dca fuse raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq dm_crypt dm_mirror dm_region_hash dm_log dm_mod dax ohci_pci ohci_hcd uhci_hcd ehci_pci ehci_hcd hid_multitouch dell_rbtn rtsx_pci_sdmmc dell_wmi dell_laptop i2c_designware_platform mei_hdcp i2c_designware_core mmc_core dell_smbios intel_rapl_msr dell_wmi_descriptor atkbd intel_wmi_thunderbolt wmi_bmof libps2 dcdbas dell_smm_hwmon iwlmvm x86_pkg_temp_thermal intel_powerclamp btusb coretemp btrtl btbcm btintel crc32c_intel uvcvideo videobuf2_vmalloc snd_usb_audio videobuf2_memops bluetooth e1000e i2c_i801 iwlwifi videobuf2_v4l2 intel_lpss_pci mei_me rtsx_pci snd_usbmidi_lib mei intel_lpss ucsi_acpi ecdh_generic mfd_core snd_rawmidi videodev processor_thermal_device ecc intel_soc_dts_iosf mousedev typec_ucsi input_leds videobuf2_common
Apr 20 22:34:29 precision kernel:  intel_pch_thermal intel_rapl_common typec wmi i2c_hid i8042 int3403_thermal int340x_thermal_zone serio dell_smo8800 int3400_thermal acpi_thermal_rel intel_pmc_core evdev i915
Apr 20 22:34:29 precision kernel: CR2: ffffa291be0db166
Apr 20 22:34:29 precision kernel: ---[ end trace 2448760b873dbc6d ]---
Apr 20 22:34:29 precision kernel: RIP: 0010:unmap_page_range+0x3be/0x910
Apr 20 22:34:29 precision kernel: Code: 02 00 85 c0 0f 84 13 02 00 00 48 c7 03 00 00 00 00 49 8d 87 00 10 00 00 48 83 c3 08 4c 39 7c 24 18 0f 84 6a 01 00 00 49 89 c7 <4c> 8b 23 49 8d af 00 f0 ff ff 49 f7 c4 9f ff ff ff 74 d4 48 8b 44
Apr 20 22:34:29 precision kernel: RSP: 0018:ffffa29207b23ca8 EFLAGS: 00010287
Apr 20 22:34:29 precision kernel: RAX: 000055f7d8b4e000 RBX: ffffa291be0db166 RCX: 0000000000000001
Apr 20 22:34:29 precision kernel: RDX: 0000000000000000 RSI: ffffc3b4fba20000 RDI: ffffa29207b23df8
Apr 20 22:34:29 precision kernel: RBP: ffffc3b4fba20000 R08: ffffc3b4fd9ba164 R09: 0000000000000010
Apr 20 22:34:29 precision kernel: R10: ffffc3b4fc0ee088 R11: ffffc3b4fc0ee080 R12: 8000000ee8800067
Apr 20 22:34:29 precision kernel: R13: ffffc3b4fba20000 R14: ffffa29207b23df8 R15: 000055f7d8b4e000
Apr 20 22:34:29 precision kernel: FS:  0000000000000000(0000) GS:ffff9ff35c240000(0000) knlGS:0000000000000000

_________________
/KoS
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