On Fri, 17 Aug 2007 01:54:18 -0400 Chris Snook <csnook@xxxxxxxxxx> wrote: > The J_ASSERT() macro in jbd and jbd2 calls printk() prior to BUG(). While this > makes it more convenient to read the assertion failure, it also clobbers > registers, which can sometimes make debugging harder, which is clearly not the > intended purpose. I recently banged my head on this myself. > > The following patches to jbd and jbd2 enable the printk only if > CONFIG_JBD[2]_DEBUG is set. Otherwise, it will simply BUG if the condition is > violated. This way test kernels still get the benefit of the J_ASSERT printk, > while production kernels, which come from a more stable source base where it's > easier to trace line numbers back to specific lines of code, simply get the BUG, > with all registers preserved. > > This is, of course, not the only way of fixing this problem, but it seems to be > the least invasive way, which is why I'm proposing these patches. How's about we just remove that printk? Do #define J_ASSERT(e) BUG_ON(e)? The rest of the kernel seems to be able to cope with that... - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
