Date: Thu, 28 May 2009 16:55:36 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: Henri Hennebert <hlh@restart.be> Cc: freebsd-stable@freebsd.org, Kip Macy <kmacy@freebsd.org>, Artem Belevich <fbsdlist@src.cx> Subject: Re: ZFS MFC heads down Message-ID: <4A1E97D8.4080901@icyb.net.ua> In-Reply-To: <4A1E90F7.2000000@restart.be> References: <3c1674c90905201643m540c8b1v8a8bd88f071c233d@mail.gmail.com> <4A1D0F2B.4030006@restart.be> <ed91d4a80905271104g2a824d0fna004d1c4f3126c67@mail.gmail.com> <3c1674c90905280052q281f6172j2409fe2d64db6914@mail.gmail.com> <4A1E90F7.2000000@restart.be>
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on 28/05/2009 16:26 Henri Hennebert said the following:
> (gdb) bt
> #0 0x00000008012a6f22 in strlen () from /lib/libc.so.7
> #1 0x00000008012a0feb in open () from /lib/libc.so.7
> #2 0x000000080129ea59 in open () from /lib/libc.so.7
> #3 0x00000008012a1f2e in vfprintf () from /lib/libc.so.7
> #4 0x0000000801291158 in fprintf () from /lib/libc.so.7
> #5 0x0000000801290fb0 in __assert () from /lib/libc.so.7
I find the above part interesting.
Could this be because of the following discrepancy:
1)
cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h:
extern void __assert(const char *, const char *, int);
2)
lib/libc/gen/assert.c:
void
__assert(func, file, line, failedexpr)
const char *func, *file;
int line;
const char *failedexpr;
> #6 0x0000000800fef120 in zmutex_destroy () from /lib/libzpool.so.1
> #7 0x000000080102e1a0 in dsl_dataset_fast_stat () from /lib/libzpool.so.1
> #8 0x0000000801045ffa in dbuf_find () from /lib/libzpool.so.1
> #9 0x0000000801047bf3 in dmu_buf_rele () from /lib/libzpool.so.1
> #10 0x0000000801027546 in dsl_pool_open () from /lib/libzpool.so.1
> #11 0x000000080101bcec in spa_create () from /lib/libzpool.so.1
> #12 0x000000080101c820 in spa_tryimport () from /lib/libzpool.so.1
But back to the problem - without an additional printf we still can not what was
the value in m_owner. Only that it was not null.
Probably it's better to build with debugging symbols and examine with gdb.
--
Andriy Gapon
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