Re: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+

2013-05-13 Thread Eunbong Song
Hi, I just wonder. Is there no problem with endianess. I mean usually bit field is defined with __BIG_ENDIAN_BITFIELD or __LITTLE_ENDIAN_BITFIELD. But b_jlist and b_modfied is defined with no pad. It seems to be good but i just want to make sure. Thanks. 2013/5/13 Dmitry Monakhov : > On Mon, 13

Re: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+

2013-05-13 Thread Dmitry Monakhov
On Mon, 13 May 2013 19:26:34 +0800, Zheng Liu wrote: > On Mon, May 13, 2013 at 09:53:25AM +, EUNBONG SONG wrote: > > > > > > > Hi all, > > > > > First of all I couldn't reproduce this regression in my sand box. So > > > the following speculation is only my guess. I suspect that the commit

Re: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+

2013-05-13 Thread Zheng Liu
On Mon, May 13, 2013 at 09:53:25AM +, EUNBONG SONG wrote: > > > > Hi all, > > > First of all I couldn't reproduce this regression in my sand box. So > > the following speculation is only my guess. I suspect that the commit > > (ae4647fb) isn't root cause. It just uncover a potential bug t

Re: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+

2013-05-13 Thread EUNBONG SONG
> Hi all, > First of all I couldn't reproduce this regression in my sand box. So > the following speculation is only my guess. I suspect that the commit > (ae4647fb) isn't root cause. It just uncover a potential bug that has > been there for a long time. I look at the code, and found two > s

Re: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+

2013-05-12 Thread Tony Luck
On Sun, May 12, 2013 at 7:21 PM, EUNBONG SONG wrote: > Hi, my git bisect result is same yours. And i reported that to community > yesterday. Ah. Good to have some confirmation (I was never sure how long to keep running before deciding that a test was "good". My slowest "bad" test took about 2.5

Re: Re: Re: EXT4 panic at jbd2_journal_put_journal_head() in 3.9+

2013-05-12 Thread EUNBONG SONG
> CONFIG_IA64_PAGE_SIZE_64KB=y > fsblock size is whatever is the default for SLES11SP2 on ia64 - which > tool will tell me? > My git bisect finally competed and points the a finger at: > bisect> git bisect good > ae4647fb7654676fc44a97e86eb35f9f06b99f66 is first bad commit > commit ae4647fb765