Crash in parse_getattr() with highly parallel load
Posted by Anonymous on Sun 29th Oct 2023 11:19
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1e64: nfs41_server_resolve(hostname='derfwpc5131_ipv6', port=2049) failed with 67
1960: handle_getattr: Invalid session pointer 0xdddddddddddddddd
1c88: ASSERTION 'state != NULL' in 'C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\daemon\open.c'/115 failed.
(1d40.1c88): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
nfsd!parse_getattr+0xfc:
00007ff6`1f8c402c 0fb78900050000  movzx   ecx,word ptr [rcx+500h] ds:00000000`00000500=????
0:015> bt
        ^ Operation not supported in current debug session 'bt'
0:015> kp
Child-SP          RetAddr           Call Site
00000034`f0dfd7f0 00007ff6`1f90db49 nfsd!parse_getattr(unsigned char * buffer = 0x00000034`f0dfdb98 "", unsigned int length = 0, struct __nfs41_upcall * upcall = 0x00000034`f0dfebf0)+0xfc
00000034`f0dfd940 00007ff6`1f8dd434 nfsd!upcall_parse(unsigned char * buffer = 0x00000034`f0dfdb90 "???", unsigned int length = 8, struct __nfs41_upcall * upcall = 0x00000034`f0dfebf0)+0x329
00000034`f0dfdac0 00007ffd`c1144c7c nfsd!thread_main(void * args = 0x00007ff6`1f946090)+0x144
00000034`f0dff810 00007ffd`f7197344 ucrtbased!thread_start<unsigned int (void * parameter = 0x000001af`77fc0af0)+0x9c
00000034`f0dff870 00007ffd`f77a26b1 KERNEL32!BaseThreadInitThunk+0x14
00000034`f0dff8a0 00000000`00000000 ntdll!RtlUserThreadStart+0x21