Troubleshooting • SegFaulting and Inode errors on Raspi 3A

Code:

[59483.990887] ------------[ cut here ]------------[59483.990911] WARNING: CPU: 1 PID: 59 at lib/refcount.c:28 proc_evict_inode+0x34/0x74[59483.990945] refcount_t: underflow; use-after-free.[59483.990951] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq_device brcmfmac_wcc brcmfmac binfmt_misc brcmutil cfg80211 ov5647 raspberrypi_hwmon rfkill bcm2835_unicam bcm2835_v4l2(C) bcm2835_codec(C) bcm2835_isp(C) v4l2_dv_timings v4l2_mem2mem bcm2835_mmal_vchiq(C) v4l2_fwnode v4l2_async videobuf2_vmalloc videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 raspberrypi_gpiomem videodev videobuf2_common snd_bcm2835(C) vc_sm_cma(C) mc sg uio_pdrv_genirq uio i2c_dev fuse dm_mod ip_tables x_tables ipv6 vc4 snd_soc_hdmi_codec drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd i2c_mux_pinctrl i2c_mux backlight i2c_bcm2835 fixed uas[59483.991215] CPU: 1 PID: 59 Comm: kswapd0 Tainted: G         C         6.6.51+rpt-rpi-v7 #1  Raspbian 1:6.6.51-1+rpt3[59483.991227] Hardware name: BCM2835[59483.991241]  unwind_backtrace from show_stack+0x18/0x1c[59483.991265]  show_stack from dump_stack_lvl+0x50/0x68[59483.991284]  dump_stack_lvl from __warn+0x80/0x11c[59483.991302]  __warn from warn_slowpath_fmt+0x12c/0x198[59483.991318]  warn_slowpath_fmt from proc_evict_inode+0x34/0x74[59483.991339]  proc_evict_inode from evict+0xfc/0x260[59483.991359]  evict from __dentry_kill+0xfc/0x1dc[59483.991379]  __dentry_kill from shrink_dentry_list+0x60/0xa8[59483.991403]  shrink_dentry_list from prune_dcache_sb+0x5c/0x84[59483.991427]  prune_dcache_sb from super_cache_scan+0x10c/0x190[59483.991448]  super_cache_scan from do_shrink_slab+0x1c4/0x408[59483.991470]  do_shrink_slab from shrink_slab+0xc0/0x27c[59483.991494]  shrink_slab from shrink_one+0x90/0x234[59483.991518]  shrink_one from shrink_node+0xb38/0xbe8[59483.991542]  shrink_node from kswapd+0x5d8/0xc14[59483.991566]  kswapd from kthread+0xe8/0x104[59483.991588]  kthread from ret_from_fork+0x14/0x38[59483.991603] Exception stack(0x9cdcdfb0 to 0x9cdcdff8)[59483.991614] dfa0:                                     00000000 00000000 00000000 00000000[59483.991625] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000[59483.991635] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000[59483.991644] ---[ end trace 0000000000000000 ]---[62931.438672] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Connection refused[63051.439759] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63111.440548] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63231.441673] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63291.442097] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63411.443203] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63471.443986] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63591.445298] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63651.445712] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63771.446975] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63831.447769] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[63951.448974] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64010.209100] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64131.450637] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64191.451466] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64311.452890] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64371.453044] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64491.454237] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64551.455026] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64671.456208] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64731.456600] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64851.457774] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[64911.458555] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[65031.459820] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[65091.460192] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[65211.461293] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[65271.462173] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected[65354.462089] systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected

Code:

sudo journalctl -r[sudo] password for root:Nov 13 08:33:28 bookgara0924 sudo[1961]: pam_unix(sudo:session): session opened for user root(uid=0) by usser(uid=1000)Nov 13 08:33:28 bookgara0924 sudo[1961]:    usser : TTY=pts/0 ; PWD=/home/usser ; USER=root ; COMMAND=/usr/bin/journalctl -rNov 13 08:32:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:31:50 bookgara0924 systemd-logind[549]: Failed to stop user service 'user@1000.service', ignoring: Failed to activate service 'org.freedesktop.syste>Nov 13 08:31:50 bookgara0924 dbus-daemon[515]: [system] Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)Nov 13 08:31:15 bookgara0924 sshd[1938]: pam_env(sshd:session): deprecated reading of user environment enabledNov 13 08:31:15 bookgara0924 sshd[1938]: pam_systemd(sshd:session): Failed to create session: Failed to activate service 'org.freedesktop.systemd1': timed out>Nov 13 08:31:15 bookgara0924 systemd-logind[549]: Failed to start session scope session-23.scope: Failed to activate service 'org.freedesktop.systemd1': timed>Nov 13 08:31:15 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:31:15 bookgara0924 dbus-daemon[515]: [system] Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)Nov 13 08:30:50 bookgara0924 dbus-daemon[515]: [system] Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)Nov 13 08:30:50 bookgara0924 systemd-logind[549]: Failed to start user service 'user@1000.service', ignoring: Connection timed outNov 13 08:30:24 bookgara0924 sshd[1938]: pam_unix(sshd:session): session opened for user usser(uid=1000) by (uid=0)Nov 13 08:30:24 bookgara0924 sshd[1938]: Accepted password for usser from 192.168.1.29 port 60262 ssh2Nov 13 08:29:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:28:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:26:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:25:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:23:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:22:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:20:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:19:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:17:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:17:01 bookgara0924 CRON[1922]: pam_unix(cron:session): session closed for user rootNov 13 08:17:01 bookgara0924 CRON[1923]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)Nov 13 08:17:01 bookgara0924 CRON[1922]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)Nov 13 08:16:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:14:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:13:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connectedNov 13 08:11:52 bookgara0924 systemd-journald[253]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected