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In some scenarios, the 4K trapstk may overflow, corrupting tmpstk. This was observed during remote debugging, with the following steps: At remote host (R): - enter kdb during boot - switch to gdb backend At local host (L): - attach gdb to R - try to read an invalid memory position At R: - a DSI trap occurs and kdb restarts (all this occurs on trapstk) - while printing the stacktrace, trapstk overflows and corrupts tmpstk Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D22200 |
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| .. | ||
| aim_machdep.c | ||
| locore.S | ||
| locore32.S | ||
| locore64.S | ||
| mmu_oea.c | ||
| mmu_oea64.c | ||
| mmu_oea64.h | ||
| moea64_if.m | ||
| moea64_native.c | ||
| mp_cpudep.c | ||
| slb.c | ||
| trap_subr32.S | ||
| trap_subr64.S | ||