Illumos #3498 panic in arc_read()

3498 panic in arc_read(): !refcount_is_zero(&pbuf->b_hdr->b_refcnt)
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

References:
  illumos/illumos-gate@1b912ec710
  https://www.illumos.org/issues/3498

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1249
This commit is contained in:
George Wilson
2013-07-02 13:26:24 -07:00
committed by Brian Behlendorf
parent 96b89346c0
commit 294f68063b
16 changed files with 75 additions and 196 deletions
+1 -7
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@@ -60,7 +60,6 @@ struct arc_buf {
arc_buf_hdr_t *b_hdr;
arc_buf_t *b_next;
kmutex_t b_evict_lock;
krwlock_t b_data_lock;
void *b_data;
arc_evict_func_t *b_efunc;
void *b_private;
@@ -104,8 +103,6 @@ void arc_buf_add_ref(arc_buf_t *buf, void *tag);
int arc_buf_remove_ref(arc_buf_t *buf, void *tag);
int arc_buf_size(arc_buf_t *buf);
void arc_release(arc_buf_t *buf, void *tag);
int arc_release_bp(arc_buf_t *buf, void *tag, blkptr_t *bp, spa_t *spa,
zbookmark_t *zb);
int arc_released(arc_buf_t *buf);
int arc_has_callback(arc_buf_t *buf);
void arc_buf_freeze(arc_buf_t *buf);
@@ -115,10 +112,7 @@ boolean_t arc_buf_eviction_needed(arc_buf_t *buf);
int arc_referenced(arc_buf_t *buf);
#endif
int arc_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_buf_t *pbuf,
arc_done_func_t *done, void *private, int priority, int zio_flags,
uint32_t *arc_flags, const zbookmark_t *zb);
int arc_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bp,
int arc_read(zio_t *pio, spa_t *spa, const blkptr_t *bp,
arc_done_func_t *done, void *private, int priority, int flags,
uint32_t *arc_flags, const zbookmark_t *zb);
zio_t *arc_write(zio_t *pio, spa_t *spa, uint64_t txg,
+1 -2
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@@ -40,8 +40,7 @@ struct zilog;
struct arc_buf;
typedef int (blkptr_cb_t)(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
struct arc_buf *pbuf, const zbookmark_t *zb, const struct dnode_phys *dnp,
void *arg);
const zbookmark_t *zb, const struct dnode_phys *dnp, void *arg);
#define TRAVERSE_PRE (1<<0)
#define TRAVERSE_POST (1<<1)
-6
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@@ -147,12 +147,6 @@ void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
const blkptr_t *bpp);
int dsl_read(zio_t *pio, spa_t *spa, const blkptr_t *bpp, arc_buf_t *pbuf,
arc_done_func_t *done, void *private, int priority, int zio_flags,
uint32_t *arc_flags, const zbookmark_t *zb);
int dsl_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bpp,
arc_done_func_t *done, void *private, int priority, int zio_flags,
uint32_t *arc_flags, const zbookmark_t *zb);
void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);