JFFS2 panic in 2.6.22-rc3

[Joakim Tjernlund]

On Mon, 2007-05-28 at 18:36 +0200, Joakim Tjernlund wrote:
> Got this when booting with JFFS2 rootfs:
> jffs2_scan_eraseblock(): Node at 0x02bff96c {0x1985, 0xe002, 0x00000000) has invalid CRC 0x80024289 (calculated 0xd55ea7b7)
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff974: 0x8002 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff98c: 0x4644 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff990: 0x4644 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff994: 0x4644 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9a4: 0x0600 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9a8: 0xea20 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9ac: 0x4c21 instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9b0: 0x785e instead
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9b4: 0x310a instead
> Further such events for this erase block will not be printed
> PHY: e0102320:1a - Link is Up - 100/Full
> VFS: Mounted root (jffs2 filesystem).
> Freeing unused kernel memory: 140k init
> PHY: e0102320:18 - Link is Up - 100/Full
> argh. node added in wrong place
> Unable to handle kernel paging request for data at address 0xffffffee
> Faulting instruction address: 0xc00d4fbc
> Oops: Kernel access of bad area, sig: 11 [#1]
> TMCUTU
> NIP: c00d4fbc LR: c00dca80 CTR: c0140b8c
> REGS: cfcf9d00 TRAP: 0300   Not tainted  (2.6.22-rc3)
> MSR: 00009032 <EE,ME,IR,DR>  CR: 84000428  XER: 20000000
> DAR: ffffffee, DSISR: 20000000
> TASK = c07d8be0[191] 'getty' THREAD: cfcf8000
> GPR00: c00dca80 cfcf9db0 c07d8be0 cff66400 ffffffea 06b55340 cfcf1f28 3872ddb1 
> GPR08: 00000000 00000000 00000000 465b1d21 00000000 10078b2c 0fffd100 007fff87 
> GPR16: 00000001 ffffffff 00000000 0fff79d8 00000000 c0250000 cfcf9e08 00000000 
> GPR24: cff66400 00000002 cfcf9ee0 cff54a38 c0230848 ffffffea cff66400 c024f4b4 
> NIP [c00d4fbc] jffs2_mark_node_obsolete+0x1c/0x508
> LR [c00dca80] jffs2_do_setattr+0x29c/0x654
> Call Trace:
> [cfcf9db0] [c07ec000] 0xc07ec000 (unreliable)
> [cfcf9e00] [c00dca80] jffs2_do_setattr+0x29c/0x654
> [cfcf9e40] [c00dce4c] jffs2_setattr+0x14/0x24
> [cfcf9e50] [c00738bc] notify_change+0x2b0/0x2f8
> [cfcf9e80] [c005ab80] sys_fchmodat+0xc0/0xdc
> [cfcf9f40] [c000f0e8] ret_from_syscall+0x0/0x38
> --- Exception: c01 at 0xff5e428
>     LR = 0x1003f584
> Instruction dump:
> 38210020 7c0803a6 4e800020 4bf2f069 4bffffe8 9421ffb0 7c0802a6 bf61003c 
> 7c9d2379 7c7e1b78 90010054 41820450 <809d0004> 548007be 2f800001 419e0364
> 
> This don't happen on 2.6.20, the Magic bitmask 0x1985 not found at .. is printed but no panic.
> Don't know how I got the corruption in the first place.
> 
>  Jocke

After a reboot, I now get this:
ICN: eth0 IP addr=10.0.1.1, mask=255.255.0.0
jffs2_scan_eraseblock(): Node at 0x02bff96c {0x1985, 0xe002, 0x00000000) has invalid CRC 0x80024289 (calculated 0xd55ea7b7)
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff974: 0x8002 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff98c: 0x4644 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff990: 0x4644 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff994: 0x4644 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9a4: 0x0600 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9a8: 0xea20 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9ac: 0x4c21 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9b0: 0x785e instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02bff9b4: 0x310a instead
Further such events for this erase block will not be printed
PHY: e0102320:1a - Link is Up - 100/Full
jffs2_scan_eraseblock(): Node at 0x06b546f8 {0x1985, 0xc002, 0x00000004) has invalid CRC 0x02204002 (calculated 0xd23363ae)
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54700: 0x0220 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54718: 0x0052 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b5471c: 0x0052 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54720: 0x465b instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54734: 0x1230 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54738: 0xa815 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54740: 0x6179 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54744: 0x3820 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x06b54748: 0x3a31 instead
Further such events for this erase block will not be printed
VFS: Mounted root (jffs2 filesystem).
Freeing unused kernel memory: 140k init
PHY: e0102320:18 - Link is Up - 100/Full 

Some more JFFS2 errors but no crash.