From: Eduard Shishkin <edward6@xxxxxxxxxxxxx> [...] > Can you test the patch below and see if it fixes the issue? Keep > the first verifier patch I sent, then apply the patch below. You can > drop the debug traceprintk patch - the patch below should fix it. Thanks for fixing it! Tested-by: Eduard Shishkin <edward6@xxxxxxxxxxxxx> [...] > This manifests obviously on big endian platforms (e.g. s390) because > the log dinode is in host order and the overlap is the LSBs of the > extent count field. It is not noticed on little endian machines > because the overlap is at the MSB end of the extent count field and > we need to get more than 2^^48 extents in the inode before it > manifests. i.e. the heat death of the universe will occur before we > see the problem in little endian machines. This sounds too bold. I can easily imagine mountable images similar to filesystem meta-data dumps, but not generated by scanning real partitions, instead created by a special tool e.g. for debugging purposes. My point is that on little-endian architectures the manifestation of such a "sleeping" bug is a much more realistic event than it may seem at first glance.
