Date: Fri, 27 Mar 2026 12:31:46 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 294072] Lock order reversal WITNESS warnings while running HW ktls traffic Message-ID: <bug-294072-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294072 Bug ID: 294072 Summary: Lock order reversal WITNESS warnings while running HW ktls traffic Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: sumit.saxena@broadcom.com While running HW kTLS traffic on Broadcom's BCM576xx NIC(managed by if_bnxt driver), I am seeing below traces occasionally on FreeBSD-current kernel tree: lock order reversal: 1st 0xff0100820a0d51e0 so_rcv (so_rcv, sleep mutex) @ /usr/src/sys/kern/uipc_socket.c:1899 2nd 0xff01008208a10020 tcpinp (tcpinp, rw) @ /usr/src/sys/kern/uipc_ktls.c:1962 lock order tcpinp -> so_rcv established at: #0 0xffffffff80c0e5e4 at witness_checkorder+0x364 #1 0xffffffff80b70c41 at __mtx_lock_flags+0x91 #2 0xffffffff80da2f6f at tcp_mss+0x15f #3 0xffffffff80dbd2de at syncache_socket+0x6de #4 0xffffffff80dbc2b9 at syncache_expand+0x6e9 #5 0xffffffff80d9de60 at tcp_input_with_port+0x9d0 #6 0xffffffff80d9f1ab at tcp_input+0xb #7 0xffffffff80d8c03d at ip_input+0x28d #8 0xffffffff80d01554 at netisr_dispatch_src+0xb4 #9 0xffffffff80ce36da at ether_demux+0x16a #10 0xffffffff80ce4c4e at ether_nh_input+0x3ce #11 0xffffffff80d01554 at netisr_dispatch_src+0xb4 #12 0xffffffff80ce3b25 at ether_input+0xd5 #13 0xffffffff83723154 at uether_rxflush+0xa4 #14 0xffffffff8371cc49 at axe_bulk_read_callback+0x229 #15 0xffffffff809982fe at usbd_callback_wrapper+0x87e #16 0xffffffff809995c9 at usb_command_wrapper+0x99 #17 0xffffffff8099847e at usb_callback_proc+0x8e lock order so_rcv -> tcpinp attempted at: #0 0xffffffff80c0ee61 at witness_checkorder+0xbe1 #1 0xffffffff80b929f5 at _rw_wlock_cookie+0x65 #2 0xffffffff80c3bd1c at ktls_destroy+0x4dc #3 0xffffffff80c4adfc at sbdestroy+0x4c #4 0xffffffff80c4e2e2 at sorele_locked+0x162 #5 0xffffffff80db537f at tcp_close+0x17f #6 0xffffffff837969e7 at ctf_process_rst+0xe7 #7 0xffffffff83776609 at rack_do_segment_nounlock+0x2469 #8 0xffffffff83774136 at rack_do_segment+0xe6 #9 0xffffffff80d9e5a2 at tcp_input_with_port+0x1112 #10 0xffffffff80d9f1ab at tcp_input+0xb #11 0xffffffff80d8c03d at ip_input+0x28d #12 0xffffffff80d01554 at netisr_dispatch_src+0xb4 #13 0xffffffff80ce36da at ether_demux+0x16a #14 0xffffffff80ce4c4e at ether_nh_input+0x3ce #15 0xffffffff80d01554 at netisr_dispatch_src+0xb4 #16 0xffffffff80ce3b25 at ether_input+0xd5 #17 0xffffffff80cfcfd9 at iflib_rxeof+0xbb9 -- You are receiving this mail because: You are the assignee for the bug.home | help
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