Hi ZFS experts,
We got a panic on one of our SmartOS servers, as you can see,
zap_leaf_t.l_dbuf is 8, which caused the panic. How could it be 8? is this
a know issue, or would you advise me how I can dig into the crash dump and
find out what is wrong?
Thanks,
--Youzhong
> $C
fffff0040302e6f0 zap_leaf_lookup_closest+0x45(fffff08960f841f8, 0, 0,
fffff0040302e710)
fffff0040302e790 fzap_cursor_retrieve+0xbb(fffff08960f841f8,
fffff0040302e850, fffff0d0fd4af000)
fffff0040302e830 zap_cursor_retrieve+0x11e(fffff0040302e850,
fffff0d0fd4af000)
fffff0040302e8f0 zap_value_search+0xaa(fffff09c97123880, 61777f, 618034,
ffffffffffff, fffff0040302e961)
fffff0040302ead0 zfs_obj_to_path_impl+0x1bf(fffff09c97123880, 618034,
fffff09c788fc4c8, fffff0899a6dfbb8, fffff0ae02ea6430, 800)
fffff0040302eb70 zfs_obj_to_stats+0xbb(fffff09c97123880, 618034,
fffff0ae02ea7188, fffff0ae02ea6430, 800)
fffff0040302ebc0 zfs_ioc_obj_to_stats+0x8c(fffff0ae02ea6000)
fffff0040302ec70 zfsdev_ioctl+0x4a7(5a00000000, 5a38, fe74d4d0, 100003,
fffff08aa01431a8, fffff0040302ee58)
fffff0040302ecb0 cdev_ioctl+0x39(5a00000000, 5a38, fe74d4d0, 100003,
fffff08aa01431a8, fffff0040302ee58)
fffff0040302ed00 spec_ioctl+0x60(fffff08587bd9b80, 5a38, fe74d4d0, 100003,
fffff08aa01431a8, fffff0040302ee58, 0)
fffff0040302ed90 fop_ioctl+0x55(fffff08587bd9b80, 5a38, fe74d4d0, 100003,
fffff08aa01431a8, fffff0040302ee58, 0)
fffff0040302eeb0 ioctl+0x9b(5, 5a38, fe74d4d0)
fffff0040302ef10 _sys_sysenter_post_swapgs+0x153()
> fffff08960f841f8::print -at zap_leaf_t
fffff08960f841f8 zap_leaf_t {
fffff08960f841f8 dmu_buf_user_t l_dbu = {
fffff08960f841f8 taskq_ent_t dbu_tqent = {
fffff08960f841f8 struct taskq_ent *tqent_next = 0
fffff08960f84200 struct taskq_ent *tqent_prev = 0
fffff08960f84208 task_func_t *tqent_func = 0
fffff08960f84210 void *tqent_arg = 0
fffff08960f84218 union tqent_un = {
fffff08960f84218 taskq_bucket_t *tqent_bucket = 0
fffff08960f84218 uintptr_t tqent_flags = 0
}
fffff08960f84220 kthread_t *tqent_thread = 0
fffff08960f84228 kcondvar_t tqent_cv = {
fffff08960f84228 ushort_t _opaque = 0
}
}
fffff08960f84230 dmu_buf_evict_func_t *dbu_evict_func = zap_evict
}
fffff08960f84238 krwlock_t l_rwlock = {
fffff08960f84238 void *[1] _opaque = [ 0xfffff09c97123888 ]
}
fffff08960f84240 uint64_t l_blkid = 0x61777f
fffff08960f84248 int l_bs = 0x37b6fb88
fffff08960f84250 dmu_buf_t *l_dbuf = 8 <------------ WRONG
}
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openzfs-developer
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