Hi Aneesh, When I remove the file that is running online defrag, the following error occurs after closing the file descriptor: Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): ext4_mb_release_inode_pa: free 2048, pa_free 1562 Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): mb_free_blocks: double-free of inode 0's block 802817(bit 0 in group 98) Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): mb_free_blocks: double-free of inode 0's block 802818(bit 1 in group 98) Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): mb_free_blocks: double-free of inode 0's block 802819(bit 2 in group 98) Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): mb_free_blocks: double-free of inode 0's block 802820(bit 3 in group 98) Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): mb_free_blocks: double-free of inode 0's block 802821(bit 4 in group 98) Jan 22 17:06:52 G3-OPC-SVR2 kernel: EXT4-fs error (device hda8): mb_free_blocks: double-free of inode 0's block 802822(bit 5 in group 98) So, online defrag calls ext4_discard_preallocations() at the end of ext4_defrag() to avoid double-free error. However, above error hasn't occurred since applying your patch posted on Nov 6th, 2008 because this error is caused by the same reason of your report. http://marc.info/?l=linux-ext4&m=122599787406193&w=4 What is the status of this patch? Regards, Kazuya Mio -- 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
