Messages in this thread | | | Date | Tue, 24 Feb 2009 19:01:59 +0100 (CET) | From | Geert Uytterhoeven <> | Subject | Re: Crash (ext3 ) during 2.6.29-rc6 boot |
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On Mon, 23 Feb 2009, Paul Mackerras wrote: > Andrew Morton writes: > > It looks like we died in ext3_xattr_block_get(): > > > > memcpy(buffer, bh->b_data + le16_to_cpu(entry->e_value_offs), > > size); > > > > Perhaps entry->e_value_offs is no good. I wonder if the filesystem is > > corrupted and this snuck through the defenses. > > > > I also wonder if there is enough info in that trace for a ppc person to > > be able to determine whether the faulting address is in the source or > > destination of the memcpy() (please)? > > It appears to have faulted on a load, implicating the source. The > address being referenced (0xc00000003f380000) doesn't look > outlandish. I wonder if this kernel has CONFIG_DEBUG_PAGEALLOC turned > on, and what page size is selected?
I'm seeing a similar thing on PS3, but not in ext3. During early userspace setup (udevd), it crashes accessing a 0xc00* address in:
| NIP setup+0x20/0x130 | LR copy_user_page+0x18/0x6c | Call trace: | do_wp_page+0x5b4/0x89c | do_page_fault+0x3a8/0x58c | handle_page_fault+0x20/0x5c
I have CONFIG_DEBUG_PAGEALLOC=y. If I disable it, the system boots fine.
If needed, I can probably bisect this tomorrow. It definitely didn't happen in 2.6.29-rc5.
With kind regards,
Geert Uytterhoeven Software Architect
Sony Techsoft Centre Europe The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium
Phone: +32 (0)2 700 8453 Fax: +32 (0)2 700 8622 E-mail: Geert.Uytterhoeven@sonycom.com Internet: http://www.sony-europe.com/
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