[syzbot] [rdma?] WARNING in __rxe_cleanup

[syzbot <syzbot+fef38133c495aeb48297@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    c03c1a14507d Linux 7.3
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1796a621580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c4b098695335c89f
dashboard link: https://syzkaller.appspot.com/bug?extid=fef38133c495aeb48297
compiler:       Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c9d4a36731a6/disk-c03c1a14.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3c00e4e185bb/vmlinux-c03c1a14.xz
kernel image: https://storage.googleapis.com/syzbot-assets/1f95d3156291/bzImage-c03c1a14.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+fef38133c495aeb48297@syzkaller.appspotmail.com

------------[ cut here ]------------
!ret
WARNING: drivers/infiniband/sw/rxe/rxe_pool.c:212 at __rxe_cleanup+0x311/0x350 drivers/infiniband/sw/rxe/rxe_pool.c:212, CPU#0: kworker/u8:9/3389
Modules linked in:
CPU: 0 UID: 0 PID: 3389 Comm: kworker/u8:9 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2026
Workqueue: krds_cp_wq#0/0 rds_shutdown_worker
RIP: 0010:__rxe_cleanup+0x311/0x350 drivers/infiniband/sw/rxe/rxe_pool.c:212
Code: f7 be 03 00 00 00 e8 7e 15 e8 fb 40 84 ed 0f 85 26 fe ff ff e9 5b fe ff ff e8 5b 89 cf f8 90 0f 0b 90 eb 09 e8 50 89 cf f8 90 <0f> 0b 90 41 be 92 ff ff ff e9 47 ff ff ff 44 89 f1 80 e1 07 80 c1
RSP: 0018:ffffc9000f2ff6d0 EFLAGS: 00010293
RAX: ffffffff88f888b0 RBX: ffff88807f162250 RCX: ffff888034160000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff917a757f R09: 1ffffffff22f4eaf
R10: dffffc0000000000 R11: fffffbfff22f4eb0 R12: ffff88807e7615a0
R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888123abf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd5380382c CR3: 000000003558f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 rxe_destroy_qp+0x74/0x270 drivers/infiniband/sw/rxe/rxe_verbs.c:661
 ib_destroy_qp_user+0x354/0x5a0 drivers/infiniband/core/verbs.c:2182
 ib_destroy_qp include/rdma/ib_verbs.h:4103 [inline]
 rdma_destroy_qp+0xd0/0x250 drivers/infiniband/core/cma.c:1170
 rds_ib_conn_path_shutdown+0x9bd/0x1820 net/rds/ib_cm.c:1113
 rds_conn_shutdown+0x477/0xb20 net/rds/connection.c:440
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>


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