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Thu, 10 Jul 2025 00:07:03 -0700 (PDT) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 From: Oleg Nauman Date: Thu, 10 Jul 2025 10:06:52 +0300 X-Gm-Features: Ac12FXzNJI99-9DIje-sbFE4pbScv6Aodml1hPucHTGsilDIaQuzIQHp9fOC1Y4 Message-ID: Subject: Process stuck in unkillable state if operating with inotify To: FreeBSD Current Content-Type: text/plain; charset="UTF-8" X-Spamd-Result: default: False [0.08 / 15.00]; NEURAL_SPAM_MEDIUM(1.00)[1.000]; NEURAL_SPAM_LONG(1.00)[0.998]; NEURAL_HAM_SHORT(-0.92)[-0.918]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; RCVD_TLS_LAST(0.00)[]; TAGGED_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; MID_RHS_MATCH_FROMTLD(0.00)[]; TO_DN_ALL(0.00)[]; RCVD_COUNT_ONE(0.00)[1]; DKIM_TRACE(0.00)[gmail.com:+]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::102b:from]; FROM_HAS_DN(0.00)[] X-Rspamd-Queue-Id: 4bd5WG3l7nz3RJ0 X-Spamd-Bar: / I noticed that some processes consume 100% of CPU and unkillable even with kill -9 System info: CURRENT 17f0f75308f2 ( Jul 8 ) amd64 The only meaningful info I was able to collect it is output of procstat -kk, so two examples of call stack for such type of processes: PID TID COMM TDNAME KSTACK 3192 100876 polkitd - _vn_lock_fallback+0x9e _vn_lock+0x8a vfs_lookup+0x122 namei+0x26d vn_inotify_add_watch+0x1b9 VOP_INOTIFY_ADD_WATCH+0x3a kern_inotify_add_watch+0x2be amd64_syscall+0x118 fast_syscall_common+0xf8 3192 100889 polkitd gmain mi_switch+0xbc sleepq_catch_signals+0x27d sleepq_wait_sig+0x9 _cv_wait_sig+0xf5 seltdwait+0x9a kern_poll_kfds+0x517 kern_poll+0x107 sys_ppoll+0x70 amd64_syscall+0x118 fast_syscall_common+0xf8 and PID TID COMM TDNAME KSTACK 58129 100829 packagekitd - ffs_lock+0x7d _vn_lock_fallback+0x9e _vn_lock+0x8a vfs_lookup+0x122 namei+0x26d vn_inotify_add_watch+0x1b9 VOP_INOTIFY_ADD_WATCH+0x3a kern_inotify_add_watch+0x2be amd64_syscall+0x118 fast_syscall_common+0xf8 58129 103627 packagekitd pool-spawner mi_switch+0xbc sleepq_catch_signals+0x27d sleepq_wait_sig+0x9 _sleep+0x197 umtxq_sleep+0x2c1 do_wait+0x258 __umtx_op_wait_uint_private+0x54 sys__umtx_op+0x7e amd64_syscall+0x118 fast_syscall_common+0xf8 58129 103628 packagekitd gmain mi_switch+0xbc sleepq_catch_signals+0x27d sleepq_wait_sig+0x9 _cv_wait_sig+0xf5 seltdwait+0x9a kern_poll_kfds+0x517 kern_poll+0x107 sys_ppoll+0x70 amd64_syscall+0x118 fast_syscall_common+0xf8 58129 103629 packagekitd gdbus mi_switch+0xbc sleepq_catch_signals+0x27d sleepq_wait_sig+0x9 _cv_wait_sig+0xf5 seltdwait+0x9a kern_poll_kfds+0x517 kern_poll+0x107 sys_ppoll+0x70 amd64_syscall+0x118 fast_syscall_common+0xf8 Thank you