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AJvYcCVgp/nxGv1kejyPrqm8RLJ5OEpiofQfl60Rj+S+WHyPge+ZEmxMIcrDEmZphzQxT+q6mQhQC9jpA9yHscM=@vger.kernel.org X-Gm-Message-State: AOJu0YxvP+O3GPgiJDwglG4Lpe9SHIjranB/RXjPQOBl25fGH+UtncDa ktvs2EOUWDjY/LiGogQhXuiJ1a+TKhobofzITj5v+yi7bDrW26HcCju6fbSuMhVRe5p7TEL2r5l QXxV10uu9M6bkl05JXunGcrfkFXBoXl6oIRUXGrEfy78uC1ci3vFdkHiTcus= X-Google-Smtp-Source: AGHT+IGKn3F9zgH/Y0O2rSLfJhx47pe3dzvUzegRuUPcWmB34CRAUlO8ZAp+SmozGsI/lnd4y0OLn30qooOHef4HWsyHEpUWNDnv Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1809:b0:414:117d:3186 with SMTP id e9e14a558f8ab-420d00eda51mr124074325ab.13.1757963795121; Mon, 15 Sep 2025 12:16:35 -0700 (PDT) Date: Mon, 15 Sep 2025 12:16:35 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68c86613.050a0220.3c6139.0d1f.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 9/15/25 12:07 PM, syzbot wrote: >>> #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.