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crash in nfs41_superblock_getattr_mask() with highly parallel load
Posted by Anonymous on Sat 28th Oct 2023 23:40
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  1. 1c8c: handle_getattr: Invalid session pointer 0xdddddddddddddddd
  2. (132c.1598): Access violation - code c0000005 (first chance)
  3. First chance exceptions are reported before any exception handling.
  4. This exception may be expected and handled.
  5. VCRUNTIME140D!memcpy+0x126:
  6. 00007fff`4a821416 f30f6f0a        movdqu  xmm1,xmmword ptr [rdx] ds:dddddddd`ddddde1d=????????????????????????????????
  7. 0:019> kp
  8. Child-SP          RetAddr           Call Site
  9. 00000030`c8efda98 00007ff7`51e046d4 VCRUNTIME140D!memcpy(void)+0x126
  10. 00000030`c8efdaa0 00007ff7`51e03482 nfsd!nfs41_superblock_getattr_mask(struct __nfs41_superblock * superblock = 0xdddddddd`dddddddd, struct __bitmap4 * attrs = 0x00000030`c8efdc88)+0x44
  11. 00000030`c8efdba0 00007ff7`51e0d5d2 nfsd!handle_readdir(void * deamon_context = 0x00007ff7`51e46090, struct __nfs41_upcall * upcall = 0x00000030`c8eff230)+0x232
  12. 00000030`c8efdfc0 00007ff7`51ddd4a6 nfsd!upcall_handle(void * daemon_context = 0x00007ff7`51e46090, struct __nfs41_upcall * upcall = 0x00000030`c8eff230)+0x92
  13. 00000030`c8efe100 00007fff`40074c7c nfsd!thread_main(void * args = 0x00007ff7`51e46090)+0x1b6
  14. 00000030`c8effe50 00007fff`7db27344 ucrtbased!thread_start<unsigned int (void * parameter = 0x000001ca`c5005920)+0x9c
  15. 00000030`c8effeb0 00007fff`7f9826b1 KERNEL32!BaseThreadInitThunk+0x14
  16. 00000030`c8effee0 00000000`00000000 ntdll!RtlUserThreadStart+0x21

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