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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-29 13:32:46 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-29 13:32:46 -0400 |
| commit | 058076bc81249864bd70615f30e73c95ccfd9bc1 (patch) | |
| tree | aefc7044853dbb169c5813020e72ae6add42e36e /tools/guest-diag/push_guest_tools.sh | |
| parent | 44a4137cb08939d24536b6db6d06da212cfe4f03 (diff) | |
| download | open-iov-058076bc81249864bd70615f30e73c95ccfd9bc1.tar.gz open-iov-058076bc81249864bd70615f30e73c95ccfd9bc1.zip | |
guest-diag: deterministic channel->pool->manager->pushbuffer chain + chunk-read diagnostics
semfix_watch.py now resolves the CE pushbuffer from guest truth instead of
scanning a wide raw window: it walks uvm_channel_t +0=pool, pool+0=manager,
manager+8=pushbuffer, pushbuffer+8=rm_mem, rm_mem+0x10=vas[] and prefers the
rm_mem whose GPU VA is in the 0x120000000 CE pushbuffer range. Three entry
points: uvch probe on __uvm_push_begin_acquire_on_channel_with_info, uvbp
probe on uvm_pushbuffer_begin_push, and the uvmt tracking-sem kptr (channel
scan back from sem). Misses now print structured hop counters so a failed
chunk read is distinguishable from a failed chain. guest_kprobes.sh
(re)installs uvmt/uvch/uvbp/uvpbf after every guest boot (plain, module:
and bare spellings).
Diffstat (limited to 'tools/guest-diag/push_guest_tools.sh')
| -rwxr-xr-x | tools/guest-diag/push_guest_tools.sh | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/guest-diag/push_guest_tools.sh b/tools/guest-diag/push_guest_tools.sh index 93f7e6a..a96fe68 100755 --- a/tools/guest-diag/push_guest_tools.sh +++ b/tools/guest-diag/push_guest_tools.sh @@ -34,6 +34,7 @@ push_b64 "$HERE/sem_slots.py" /tmp/sem_slots.py push_b64 "$HERE/read_va.py" /tmp/read_va.py push_b64 "$HERE/guest_pmap.py" /tmp/guest_pmap.py push_b64 "$HERE/track_waits.sh" /tmp/track_waits.sh +push_b64 "$HERE/guest_kprobes.sh" /tmp/kprobes.sh echo "[*] compiling in guest..." "$VMEXEC" exec "gcc -O1 -w -o /tmp/ptio /tmp/ptio.c && \ |