Messages in this thread | | | Date | Wed, 5 Aug 2015 18:50:31 +0300 | From | Aapo Vienamo <> | Subject | [BUG] arm: kgdb: patch_text() in kgdb_arch_set_breakpoint() may sleep |
| |
Hi,
The breakpoint setting code in arch/arm/kernel/kgdb.c calls patch_text(), which ends up trying to sleep while in interrupt context. The bug was introduced by commit: 23a4e40 arm: kgdb: Handle read-only text / modules. The resulting behavior is "BUG: scheduling while atomic..." when setting a breakpoint in kgdb. This was tested on an Nvidia Jetson TK1 board with 4.2.0-rc5-next-20150805 kernel.
Regards, Aapo Vienamo
| |