[LU-20271] ptl_send_rpc()) ASSERTION( request->rq_repdata == ((void *)0) )

• Type: Bug
• Resolution: Unresolved
• Priority: Medium
• Severity: 3
• Assignee: Di Wang
• Reporter: Di Wang

Description

Got this in my local test

[ 8980.587795] Lustre: lustre-MDT0000-mdc-ff4437b60379c000: Connection to lustre-MDT0000 (at 0@lo) was lost; in progress operations using this service will wait for recovery to complete
[ 8980.610524] Lustre: lustre-MDT0000: Will be in recovery for at least 1:00, or until 1 client reconnects
[ 8980.610646] LustreError: 160806:0:(niobuf.c:1014:ptl_send_rpc()) ASSERTION( request->rq_repdata == ((void *)0) ) failed: 
[ 8980.610648] LustreError: 160806:0:(niobuf.c:1014:ptl_send_rpc()) LBUG
[ 8980.610650] CPU: 23 PID: 160806 Comm: ptlrpcd_rcv Kdump: loaded Tainted: G           OE  X  -------  ---  5.14.0-427.31.1_lustre.el9.x86_64 #1
[ 8980.610652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/24/2025
[ 8980.610653] Call Trace:
[ 8980.610654]  <TASK>
[ 8980.610655]  dump_stack_lvl+0x34/0x48
[ 8980.610662]  lbug_with_loc.cold+0x5/0x43 [libcfs]
[ 8980.610674]  ptl_send_rpc+0x136b/0x1450 [ptlrpc]
[ 8980.610771]  ptlrpc_send_new_req+0x614/0xba0 [ptlrpc]
[ 8980.610836]  ptlrpc_check_set+0x6e2/0x1f20 [ptlrpc]
[ 8980.610898]  ? __ptlrpc_free_req+0x339/0x500 [ptlrpc]
[ 8980.610950]  ptlrpcd_check+0x3a3/0x570 [ptlrpc]
[ 8980.611026]  ? add_wait_queue+0x65/0xa0
[ 8980.611031]  ptlrpcd+0x20d/0x4a0 [ptlrpc]
[ 8980.611101]  ? __pfx_woken_wake_function+0x10/0x10
[ 8980.611104]  ? __pfx_ptlrpcd+0x10/0x10 [ptlrpc]
[ 8980.611170]  kthread+0xdd/0x100
[ 8980.611173]  ? __pfx_kthread+0x10/0x10
[ 8980.611174]  ret_from_fork+0x29/0x50