On Tue, Jun 21, 2011 at 7:52 PM, Niraj Kulkarni <kulkarniniraj14@xxxxxxxxx> wrote: > Hi all, > I have modified my JBD (no change to Ext3) to support > Transactional-Flash. For that I require only to collect metadata and data > blocks and send them simultaneously (no transaction record, revoke record > etc). It's hard to help without knowing what your patches do in more details. Could you post the patches or give a more detailed description of how they work? For example, how do you collect data blocks without them being already written? or is this not a requirement for your use case? > The problem is, though it works well for small number of operations, > the kernel completely hangs when I run any benchmark (like blogbench or > postmark) over them. The bad thing is that there is no trace left > afterwards, ie logs don't contain any message since the operation was > started, kernel OOPS are not shown, no faults are shown, no panic is shown > even though I have enabled panic on hard/soft lockup. I have to hard reboot > machine each time. Did you try alt+sysrq+w to dump waiting tasks? > So essentially, I am totally clueless about the point at which it is > crashing or reason behind it. There is a small possibility that bug may be > in modified MTD layer (which I've written myself), but since I have run > unmodified Ext3 on that MTD layer without any bug, the chance of buggy MTD > layer appears very slim. > > Any help in greatly appreciated. > > Niraj > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
