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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 May 2025 11:28:21.6102 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9f2946d0-f56c-4437-1a4e-08dd9f6d1578 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001B7.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS1PR08MB7425 X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 5B11F1C0007 X-Stat-Signature: tjhu79uem59t6s759mwd13otijt7iyf7 X-Rspam-User: X-HE-Tag: 1748604506-163576 X-HE-Meta: U2FsdGVkX1+fGbsqIveD1wboVnmes662/0nuA8g+vu6mbXrxH3BoYIwQhpAMVvrwQJVh5tPy0LCF7n0+3vA9ZC4TH3j9VvhNhlTcO5tb/OYtvFAxhivdpTwupMoL4vIVL5JE3ZkDHCMiVllgsnxUdWyTSbda+YN6tgpSxdlyGV8jRgUXXtFVF0Ro/hvsMFuhz+jFPbxiNtn2hSSVjflhTusaXwwsXer15hMtyfv3F/Kc8xo4aAek0RB29vbOh8Xk1uZdFudZVPiee2JaomyTZNysQcNgyoRdUSBsSAySMNkSRmMHBGJr99BNuv6Hi0/bnmRljsWjcZcITMMDu8LHjCDPT/I+kBHHUIV/ScWC3AmEKZqaPihq0jSrF2yxEdZLnoBsBx5Lxsbg4UjQQBit3jPktoIrfzfy3fzPGTOfYrQDlqmgvDCnNoJeY0DR8YBzwEiZO0gfOAwmwcLpQ01SlNXidiUmt6BLPVUoqVDTH+K8mUlN5n2udg2QPzz7ceGk8Rh/roAMfJPEANjc5i9tUW1CpsTFWcf7DXuRfOFp7ZGxn2zv2/x0ijd5nChgiO1h3GdnZ2TBCQlPAjm48Mb3gYQ9+d1djO87Rb7rIHiL/GyaUbUryw1PeHlcy9J74Hp0vv0qCleBHLebaj880FEEWWsDqQ+vmV21iHVnpsa38NHqOj/aGZxF1cXdmpBT6J82AI1Jgr/BLLGOvCMkeN4zxRpJCP5P/61sE6GsEaGdPTGfvMddx+nc4mkyvDT58F4cmFiuCFwZvVL7auseIezWosh+wJvSmNh6bohASmKrR5KU/QnLoHw2uJtifECkfmQJ3G3U0jXiE3rH80zp1X0v0itVFuEUtJR7bnQv4VPF//IKu83srUlVmuukgNdkn8rr2pGGVE8d88GP634IZ1Z0M6JTudbTtR9vgI5gqFX2xvFeNNn4QhYpjy4LmwJpu78J/gEB4eIZjm87auGefDi IOyvbe24 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Byungchul,=0A= =0A= Thanks for your great work for the latest dept patch.=0A= =0A= But I have a some quetions with the below dept log supplied from =0A= Yunseong Kim=0A= =0A= ...=0A= [13304.604203] context A=0A= [13304.604209] [S] lock(&uprobe->register_rwsem:0)=0A= [13304.604217] [W] __wait_rcu_gp(:0)=0A= [13304.604226] [E] unlock(&uprobe->register_rwsem:0)=0A= [13304.604234]=0A= [13304.604239] context B =0A= [13304.604244] [S] lock(event_mutex:0)=0A= [13304.604252] [W] lock(&uprobe->register_rwsem:0)=0A= [13304.604261] [E] unlock(event_mutex:0)=0A= [13304.604269]=0A= [13304.604274] context C=0A= [13304.604279] [S] lock(&ctx->mutex:0)=0A= [13304.604287] [W] lock(event_mutex:0)=0A= [13304.604295] [E] unlock(&ctx->mutex:0)=0A= [13304.604303]=0A= [13304.604308] context D=0A= [13304.604313] [S] lock(&sig->exec_update_lock:0)=0A= [13304.604322] [W] lock(&ctx->mutex:0)=0A= [13304.604330] [E] unlock(&sig->exec_update_lock:0)=0A= [13304.604338]=0A= [13304.604343] context E=0A= [13304.604348] [S] lock(&f->f_pos_lock:0)=0A= [13304.604356] [W] lock(&sig->exec_update_lock:0)=0A= [13304.604365] [E] unlock(&f->f_pos_lock:0)=0A= [13304.604373]=0A= [13304.604378] context F=0A= [13304.604383] [S] (unknown)(:0)=0A= [13304.604391] [W] lock(&f->f_pos_lock:0)=0A= [13304.604399] [E] try_to_wake_up(:0)=0A= [13304.604408]=0A= [13304.604413] context G=0A= [13304.604418] [S] lock(btrfs_trans_num_writers:0)=0A= [13304.604427] [W] btrfs_commit_transaction(:0)=0A= [13304.604436] [E] unlock(btrfs_trans_num_writers:0)=0A= [13304.604445]=0A= [13304.604449] context H=0A= [13304.604455] [S] (unknown)(:0)=0A= [13304.604463] [W] lock(btrfs_trans_num_writers:0)=0A= [13304.604471] [E] try_to_wake_up(:0)=0A= [13304.604484] context I=0A= [13304.604490] [S] (unknown)(:0)=0A= [13304.604498] [W] synchronize_rcu_expedited_wait_once(:0)=0A= [13304.604507] --------------- >8 timeout ---------------=0A= [13304.604527] context J=0A= [13304.604533] [S] (unknown)(:0)=0A= [13304.604541] [W] synchronize_rcu_expedited(:0)=0A= [13304.604549] [E] try_to_wake_up(:0)=0A= =0A= [end of circular]=0A= ...=0A= =0A= 1. I wonder how context A could be printed with =0A= [13304.604217] [W] __wait_rcu_gp(:0) =0A= since, the completion's dept map will be initailized with =0A= sdt_might_sleep_start_timeout((x)->dmap, -1L);=0A= =0A= I think last dept_task's stage_sched_map affects this wrong print.=0A= Should this be fixed with:=0A= =0A= @@ -2713,6 +2713,7 @@ void dept_stage_wait(struct dept_map *m, struct dept= _key *k,=0A= if (m) {=0A= dt->stage_m =3D *m;=0A= dt->stage_real_m =3D m;=0A= + dt->stage_sched_map =3D false;=0A= =0A= /*=0A= * Ensure dt->stage_m.keys !=3D NULL and it works with the= =0A= =0A= 2. Whenever prints the dependency which initalized with sdt_might_sleep_sta= rt_timeout() currently it prints=0A= (unknown)(:0) only.=0A= Would it much better to print task information? (pid, comm and other). = =0A= =0A= Thanks.=