The crash built-in command "sym" fails to translate a kernel virtual address to its symbol in the minimal mode.

Solution Verified - Updated -

Issue

  • The crash built-in command sym fails to translate a kernel virtual address to its symbol in the minimal mode.
crash> sym -l | grep ffffffff9b21638b
ffffffff9b21638b (T) panic

crash> sym panic
ffffffff9b21638b (T) panic /usr/src/debug/kernel-5.14.0-39.el9/linux-5.14.0-39.el9.x86_64/kernel/panic.c: 179

crash> sym 0xffffffff9b21638b
symbol not found: 0xffffffff9b21638b

crash> sym -l | grep ffffffff9b17b620
ffffffff9b17b620 (t) unix_wait_for_peer

crash> sym unix_wait_for_peer
ffffffff9b17b620 (t) unix_wait_for_peer /usr/src/debug/kernel-5.14.0-39.el9/linux-5.14.0-39.el9.x86_64/net/unix/af_unix.c: 1213

crash> sym 0xffffffff9b17b620
symbol not found: 0xffffffff9b17b620

Environment

  • Red Hat Enterprise Linux 9
  • crash

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