Hi, Thank you for the report. :)
Can you send me the disk image right after formatting f2fs? As your previous patch, I strongly suspect the endian conversion bug. Otherwise, I recommend you to test with the latest tree from: http://git.kernel.org/cgit/linux/kernel/git/jaegeuk/f2fs.git Thanks, 2013-06-16 (일), 14:51 +0300, Oded Gabbay: > Hi, > > I'm working on a custom board with a PowerPC processor (Freescale > P2020). > On the board there is an SD card, which is connected to a USB3 chip > (from TI), which is connected to the PCI-e controller of the CPU. > I'm running with Linux kernel 3.9.6, with our custom rootFS. > > I formatted an SD card using the mkfs.f2fs utility (after fixing some > Big-endian issues - sent a patch a few days ago). > I then mounted the SD card, using "mount -o > noatime,nodiratime,rw,nosuid,nodev,relatime,active_logs=6,uhelper=udisks2,background_gc_off > /dev/sda /mnt/sd1" > Then, I started a small user-space test application which opens a file > on the mount folder and starts to do "fwrite" into the file. > After 2-3 seconds, the kernel gives me a BUG and the system restarts. > When the system is up and I try to re-mount the SD card, I get the > following error message: > > F2FS-fs (sda): Failed to get valid F2FS checkpoint > mount: you must specify the filesystem type > > Only way is to re-format the card using mkfs.f2fs > > I took the f2fs patch that Jaegeuk Kim sent to Linus for 3.10 (here - > https://lkml.org/lkml/2013/5/8/122) and applied it cleanly to 3.9.6 > I repeated the procedure but got the same result. > > The BUG is from this line, from segment.c: > if (!f2fs_clear_bit(offset, se->cur_valid_map)) > BUG(); > > Additional information I can give is > > 1. I tried using F2FS in ArchLinux, kernel 3.9.5, on an x86 machine, > with the same SD card and the same USB3-to-PCIe chip and it worked > flawlessly there. > 2. I can work with other FS on the SD card on our custom board, such > as Ext3, Ext4 and vfat, so this is not a H/W issue. > > Could you please try to help me pinpoint/debug the problem ? > > Here is the complete kernel BUG print: > > kernel BUG at .../linux-3.9.6-adva/fs/f2fs/segment.c:214! > Oops: Exception in kernel mode, sig: 5 [#1] > PREEMPT SMP NR_CPUS=2 P2020 FSP150 > Modules linked in: mdio(O) hardware_version(PO) clipresent(PO) > monotonic(O) restartcause(PO) panic_buffer(O) > NIP: c026a7e0 LR: c026a660 CTR: 00000000 > REGS: ee761a60 TRAP: 0700 Tainted: P O > (3.9.6-dev_ogabbay-109482*) > MSR: 00029000 <CE,EE,ME> CR: 24a52588 XER: 20000000 > TASK = efb444c0[1755] 'flush-8:0' THREAD: ee760000 CPU: 1 > GPR00: 00000000 ee761b10 efb444c0 0000004c 00000000 00000000 01dc4900 > eb0fa700 > GPR08: 00000000 eb24cb00 00000040 00000040 00000038 00000000 ee761c64 > 00000000 > GPR16: c0aeea80 00080000 00000000 00000000 0000ed31 eb0fa700 00000000 > eb0fa734 > GPR24: eb0fa700 00000080 f2030620 ffffffff ffffffc8 0000ed31 ffffffff > c55a1000 > NIP [c026a7e0] update_sit_entry+0x240/0x248 > LR [c026a660] update_sit_entry+0xc0/0x248 > Call Trace: > [ee761b10] [c55a1000] 0xc55a1000 (unreliable) > [ee761b40] [c026d1f4] do_write_page+0x198/0x660 > [ee761b80] [c026d84c] write_data_page+0xa4/0xb8 > [ee761bc0] [c0265118] do_write_data_page+0x1e8/0x20c > [ee761c20] [c02653dc] f2fs_write_data_page+0x2a0/0x2c0 > [ee761c40] [c0263ad8] __f2fs_writepage+0x24/0x80 > [ee761c50] [c00b05dc] write_cache_pages+0x1d0/0x35c > [ee761d00] [c0263cf4] f2fs_write_data_pages+0xf4/0xfc > [ee761d30] [c00b1d3c] do_writepages+0x30/0x64 > [ee761d40] [c0103fbc] __writeback_single_inode+0x34/0x10c > [ee761d60] [c0104ef8] writeback_sb_inodes+0x204/0x370 > [ee761dd0] [c01050f4] __writeback_inodes_wb+0x90/0xd4 > [ee761e00] [c01054cc] wb_writeback+0x204/0x20c > [ee761e50] [c0105844] wb_do_writeback+0x144/0x20c > [ee761eb0] [c0105980] bdi_writeback_thread+0x74/0x144 > [ee761ee0] [c0059dc4] kthread+0xa8/0xac > [ee761f40] [c000f014] ret_from_kernel_thread+0x64/0x6c > Instruction dump: > 4bffff2c 813a0004 5720e8fe 7f39c8f8 39400001 5739077e 7d6900ae > 7d59c830 > 7d6ac878 7d68c839 7d4901ae 4082fef0 <0fe00000> 0fe00000 9421ffe0 > 7c0802a6 > > -- > Best regards, > Oded Gabbay > Principal Engineer Advanced Packet Technologies > ADVA Optical Networking Israel Ltd. > P.O. Box 2552 > 2 Hatidhar St. > Raanana 4366504, Israel > Tel: +(972)-9-7750130 > Fax: +(972)-9-7462092 > Mobile: +(972)-54-6543998 > E-mail: ogab...@advaoptical.com > > www.advaoptical.com > Let's ADVANCE > > ADVA Optical Networking SE is a European stock corporation (\"Societas > Europaea\") with registered offices at Maerzenquelle 1-3, D-98617 > Meiningen, Germany * CEO: Brian L. Protiva, Chief Officers: Dr. > Christoph Glingener, Christian Unterberger, Jaswir Singh * Chairman of > the Supervisory Board: Anthony Maher * AG Jena HRB 508155 * VAT No. DE > 175 446 349 > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > _______________________________________________ Linux-f2fs-devel mailing list > Linux-f2fs-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel -- Jaegeuk Kim Samsung ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
