CODEWITHSUNDEEP
gdb
tuyenle
tuyenle

Reputation: 79

Thread 2 received signal SIGBUS

Thread 2 received signal SIGBUS, Bus error. 0x00000001001021e0 in ?? ()

. What does this mean? GDB does not specify where this occur either

Upvotes: 0

Views: 1308

Answers (1)

Employed Russian
Employed Russian

Reputation: 213754

What does this mean?

It means that your program tried to execute instructions at address 0x1001021e0, but page mapped at that address is not mapped with execute permissions.

GDB does not specify where this occur either

Yes it does: it occurred at address 0x1001021e0.

What you want to do is:

  1. Figure out how you got to execute at that address, The GDB where command may help
  2. Figure out how the page at 0x1001021e0 is mapped. On Linux, cat /proc/$pid-of-debugged-program/maps or GDB info proc maps should help. Other OSes may have similar facilities.

Upvotes: 2

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