diff options
Diffstat (limited to 'tools/guest-diag')
| -rw-r--r-- | tools/guest-diag/guest_pin_stream.py | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/tools/guest-diag/guest_pin_stream.py b/tools/guest-diag/guest_pin_stream.py index 04aba73..739aeca 100644 --- a/tools/guest-diag/guest_pin_stream.py +++ b/tools/guest-diag/guest_pin_stream.py @@ -778,10 +778,19 @@ def scan_vmas(fd, pid, out): try: for line in maps: parts = line.split() - if len(parts) < 6: + if len(parts) < 5: continue - path = parts[5] - if not any(p in path for p in VMA_PATHS): + # Anonymous mappings (no path field) are the client's UVM sysmem + # buffers when the driver maps them without a /dev/zero backing: + # the second client's cudaMalloc'd data buffers show up exactly + # like that (e.g. 75d7b0000000-75d7b0021000 rw-p 00000000 00:00 0) + # and were skipped by the old len<6 check, so their pages never + # reached the host and the forwarded launch could not resolve + # them (all-zero results for the second client). Accept them at + # the high-VA range; the VMA_LO bound and the pagemap present/PFN + # filters keep the set to real GPU mappings. + path = parts[5] if len(parts) >= 6 else '' + if path and not any(p in path for p in VMA_PATHS): continue try: a, b = parts[0].split('-') |