Errors making kern.log and syslog huge (29G)

hey this wasn't ready, I thought "save" would save draft, not publish it. How can I delete these posts? Sorry for my mistake.

Just keep telling the details on following messages, I don't think we can edit the first post.

Historically huge syslog files are a sign of a faulty hardware.

Maybe a wireless card not being supported and filling up syslog?
You might like to check turning off some devices.

But he best idea is to check what is the content of the syslog file that would help determine the underlying issue.

Jul 7 22:22:00 trisquelPC kernel: [88462.060916] ------------[ cut here ]------------
Jul 7 22:22:00 trisquelPC kernel: [88462.060919] Can't enable IRQ/MSI because no handler is installed
Jul 7 22:22:00 trisquelPC kernel: [88462.061011] WARNING: CPU: 0 PID: 700 at drivers/gpu/drm/radeon/r600.c:3770 r600_irq_set+0x721/0x730 [radeon]
Jul 7 22:22:00 trisquelPC kernel: [88462.061147] Modules linked in: ccm snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel ath9k snd_intel_dspcfg snd_intel_sdw_acpi ath9k_common snd_hda_codec binfmt_misc ath9k_hw snd_hda_core edac_mce_amd snd_hwdep nls_iso8859_1 kvm_amd snd_pcm ath ccp snd_seq_midi mac80211 snd_seq_midi_event snd_rawmidi kvm snd_seq snd_seq_device snd_timer input_leds joydev cfg80211 cp210x serio_raw snd usbserial sparse_keymap k8temp soundcore libarc4 mac_hid sch_fq_codel parport_pc ppdev lp parport ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log radeon i2c_algo_bit drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core psmouse drm i2c_piix4 ahci atl1c libahci wmi video
Jul 7 22:22:00 trisquelPC kernel: [88462.061265] CPU: 0 PID: 700 Comm: Xorg Tainted: G W 5.15.0-76-generic #83+11.0trisquel24
Jul 7 22:22:00 trisquelPC kernel: [88462.061269] Hardware name: Acer Aspire 5532 /Aspire 5532 , BIOS V1.09 11/30/2009
Jul 7 22:22:00 trisquelPC kernel: [88462.061272] RIP: 0010:r600_irq_set+0x721/0x730 [radeon]
Jul 7 22:22:00 trisquelPC kernel: [88462.061403] Code: 89 45 c4 e9 1b fa ff ff 8b 4d c4 89 88 34 07 00 00 49 8b 84 24 f0 01 00 00 e9 c5 fd ff ff 48 c7 c7 b8 27 54 c0 e8 eb 80 2b cb <0f> 0b b8 ea ff ff ff e9 b5 fd ff ff 0f 1f 00 0f 1f 44 00 00 55 48
Jul 7 22:22:00 trisquelPC kernel: [88462.061407] RSP: 0018:ffffae3b40a73b00 EFLAGS: 00010086
Jul 7 22:22:00 trisquelPC kernel: [88462.061411] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000027
Jul 7 22:22:00 trisquelPC kernel: [88462.061414] RDX: ffff926f2f820588 RSI: 0000000000000001 RDI: ffff926f2f820580
Jul 7 22:22:00 trisquelPC kernel: [88462.061417] RBP: ffffae3b40a73b50 R08: 0000000000000003 R09: 00000000281b2a18
Jul 7 22:22:00 trisquelPC kernel: [88462.061420] R10: 0000000000000036 R11: 0000000000000001 R12: ffff926eb0008000
Jul 7 22:22:00 trisquelPC kernel: [88462.061423] R13: 0000000000000000 R14: 0000000000000002 R15: ffff926eb0009be4
Jul 7 22:22:00 trisquelPC kernel: [88462.061426] FS: 00007f4e28dcba80(0000) GS:ffff926f2f800000(0000) knlGS:0000000000000000
Jul 7 22:22:00 trisquelPC kernel: [88462.061430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 7 22:22:00 trisquelPC kernel: [88462.061433] CR2: 00007f0f43797010 CR3: 000000000d44c000 CR4: 00000000000006f0
Jul 7 22:22:00 trisquelPC kernel: [88462.061436] Call Trace:
Jul 7 22:22:00 trisquelPC kernel: [88462.061438]
Jul 7 22:22:00 trisquelPC kernel: [88462.061443] radeon_enable_vblank_kms+0x66/0xb0 [radeon]
Jul 7 22:22:00 trisquelPC kernel: [88462.061558] drm_vblank_enable+0xfd/0x1a0 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.061666] drm_vblank_get+0xaf/0x100 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.061758] drm_wait_vblank_ioctl+0x112/0x500 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.061852] ? drm_legacy_modeset_ctl_ioctl+0x120/0x120 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.061943] drm_ioctl_kernel+0xb3/0x100 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.062031] drm_ioctl+0x268/0x4b0 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.062117] ? drm_legacy_modeset_ctl_ioctl+0x120/0x120 [drm]
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? restore_sigcontext+0x180/0x1e0
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] radeon_drm_ioctl+0x4e/0x90 [radeon]
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] __x64_sys_ioctl+0x95/0xd0
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] do_syscall_64+0x5c/0xc0
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? exit_to_user_mode_prepare+0x88/0xb0
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? syscall_exit_to_user_mode+0x27/0x50
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? do_syscall_64+0x69/0xc0
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? do_syscall_64+0x69/0xc0
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? syscall_exit_to_user_mode+0x27/0x50
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? do_syscall_64+0x69/0xc0
Jul 7 22:22:00 trisquelPC kernel: message repeated 2 times: [[88462.062205] ? do_syscall_64+0x69/0xc0]
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ? sysvec_apic_timer_interrupt+0x4e/0x90
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] entry_SYSCALL_64_after_hwframe+0x61/0xcb
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] RIP: 0033:0x7f4e29256aff
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 77 1f 48 8b 44 24 18 64 48 2b 04 25 28 00
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] RSP: 002b:00007ffd0d730c40 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] RAX: ffffffffffffffda RBX: 0000559072c03dc0 RCX: 00007f4e29256aff
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] RDX: 00007ffd0d730d40 RSI: 00000000c018643a RDI: 0000000000000010
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] RBP: 0000000000000010 R08: 0000000000000000 R09: 0000559074b57f50
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] R10: 00007ffd0d79e080 R11: 0000000000000246 R12: 000000000001d2fb
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] R13: 00000000c018643a R14: 00007ffd0d730d40 R15: 0000000000000000
Jul 7 22:22:00 trisquelPC kernel: [88462.062205]
Jul 7 22:22:00 trisquelPC kernel: [88462.062205] ---[ end trace 1bb824e7d7d6e744 ]---

Here is the code that is repeating. Besides the IRQ/MSI part, it seems to be something with radion graphics and drm. The computer is an Acer Aspire 5532, and to the best of my knowledge, the only thing on it that needs proprietary drivers is the 3d gpu acceleration.
My understanding is that trisquel just disables that feature.
So does anyone have any idea what the underlying issue is? Thanks so far for your help!

I just tried upgrading the kernel to the latest linux-libre version but the issue persists

Hi, I got it all fixed. The issue was fixed with this command. The xfce default must have been wrong.
"xfwm4 --vblank=glx --replace"
It worked like that, so I changed the default vblank_mode.
thanks for all your time! Trisquel is awesome!