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AJvYcCUA1GRYFGrhvX3Lbabzz6J1HD6EXqNdHwc5k5ZKEcyY9VNxe19/bDLxL2JjQiHBc3WHzclkkhHjdnd2BlM=@vger.kernel.org X-Gm-Message-State: AOJu0YyTqn+Z/gzvrpvfzNxCpWx2OIB46peJRgWifVXVR6GVx22A2Pdw cV4DlFX+SjtGsTkC0Ih+6XzGd6rVYujKrqHbiB7cfHjw4rRj86+LFMc2+CRZwcdIQqIbguEtLHz Xg1canCqZ/cpnLZ1ElDxYb/sx2nMpInQS0DC2JqtgZrc1QOtH7XVU9b0R66w= X-Google-Smtp-Source: AGHT+IFcnTSXLGbUKH46CdN9QivF+oRfPAWztpgbJ9CSLQBB/FS1T/4FxJ5DhmxJb+X4TgYmHveyIbXZ9qIF//HTp/7f7+xrf9pR Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:214b:b0:423:fd07:d3f0 with SMTP id e9e14a558f8ab-423fd07d535mr54611465ab.26.1757963264106; Mon, 15 Sep 2025 12:07:44 -0700 (PDT) Date: Mon, 15 Sep 2025 12:07:44 -0700 In-Reply-To: <5fb34b0f-435e-4584-abe0-bbf7839b44df@linux.dev> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68c86400.050a0220.2ff435.03a7.GAE@google.com> Subject: Re: [syzbot] [rdma?] WARNING in gid_table_release_one (3) From: syzbot To: yanjun.zhu@linux.dev Cc: jgg@ziepe.ca, leon@kernel.org, yanjun.zhu@linux.dev, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > #syz test:https://github.com/zhuyj/linux.git v6.17_fix_gid_table_release_one unknown command "test:https://github.com/zhuyj/linux.git" > > On 9/12/25 3:04 PM, syzbot wrote: >> Hello, >> >> syzbot has tested the proposed patch but the reproducer is still triggering an issue: >> WARNING in gid_table_release_one >> >> ------------[ cut here ]------------ >> GID entry ref leak for dev syz1 index 2 ref=445 >> WARNING: CPU: 1 PID: 1088 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] >> WARNING: CPU: 1 PID: 1088 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x346/0x4d0 drivers/infiniband/core/cache.c:886 >> Modules linked in: >> CPU: 1 UID: 0 PID: 1088 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT(full) >> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 >> Workqueue: ib-unreg-wq ib_unregister_work >> RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:806 [inline] >> RIP: 0010:gid_table_release_one+0x346/0x4d0 drivers/infiniband/core/cache.c:886 >> Code: e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 3d 41 8b 0e 48 c7 c7 00 46 71 8c 4c 89 e6 44 89 fa e8 3b a5 fa f8 90 <0f> 0b 90 90 e9 e3 fe ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c >> RSP: 0018:ffffc90003d0f908 EFLAGS: 00010246 >> RAX: 11007f8b953ea200 RBX: ffff88802d562cd8 RCX: ffff888026adda00 >> RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 >> RBP: 1ffff11005aac59b R08: ffff8880b8724253 R09: 1ffff110170e484a >> R10: dffffc0000000000 R11: ffffed10170e484b R12: ffff888028265480 >> R13: ffff88802d562c00 R14: ffff8880779b1800 R15: 0000000000000002 >> FS: 0000000000000000(0000) GS:ffff888125d16000(0000) knlGS:0000000000000000 >> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> CR2: 0000200000000240 CR3: 000000007612e000 CR4: 00000000003526f0 >> Call Trace: >> >> ib_device_release+0xd2/0x1c0 drivers/infiniband/core/device.c:509 >> device_release+0x99/0x1c0 drivers/base/core.c:-1 >> kobject_cleanup lib/kobject.c:689 [inline] >> kobject_release lib/kobject.c:720 [inline] >> kref_put include/linux/kref.h:65 [inline] >> kobject_put+0x22b/0x480 lib/kobject.c:737 >> process_one_work kernel/workqueue.c:3236 [inline] >> process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 >> worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 >> kthread+0x70e/0x8a0 kernel/kthread.c:463 >> ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:148 >> ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 >> >> >> >> Tested on: >> >> commit: dd87fd3f RDMA/rxe: Add logs to find out the root cause >> git tree:https://github.com/zhuyj/linux.git v6.17_fix_gid_table_release_one >> console output:https://syzkaller.appspot.com/x/log.txt?x=144a9934580000 >> kernel config:https://syzkaller.appspot.com/x/.config?x=4239c29711f936f >> dashboard link:https://syzkaller.appspot.com/bug?extid=b0da83a6c0e2e2bddbd4 >> compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 >> >> Note: no patches were applied.