75d34eb98c
Just as we recently added a trace for a server sending block status that doesn't match the server's advertised minimum block alignment, let's do the same for read chunks. But since qemu 3.1 is such a server (because it advertised 512-byte alignment, but when serving a file that ends in data but is not sector-aligned, NBD_CMD_READ would detect a mid-sector change between data and hole at EOF and the resulting read chunks are unaligned), we don't want to change our behavior of otherwise tolerating unaligned reads. Note that even though we fixed the server for 4.0 to advertise an actual block alignment (which gets rid of the unaligned reads at EOF for posix files), we can still trigger it via other means: $ qemu-nbd --image-opts driver=blkdebug,align=512,image.driver=file,image.filename=/path/to/non-aligned-file Arguably, that is a bug in the blkdebug block status function, for leaking a block status that is not aligned. It may also be possible to observe issues with a backing layer with smaller alignment than the active layer, although so far I have been unable to write a reliable iotest for that scenario. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20190330165349.32256-1-eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
211 lines
15 KiB
Plaintext
211 lines
15 KiB
Plaintext
# See docs/devel/tracing.txt for syntax documentation.
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# ../block.c
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bdrv_open_common(void *bs, const char *filename, int flags, const char *format_name) "bs %p filename \"%s\" flags 0x%x format_name \"%s\""
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bdrv_lock_medium(void *bs, bool locked) "bs %p locked %d"
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# block-backend.c
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blk_co_preadv(void *blk, void *bs, int64_t offset, unsigned int bytes, int flags) "blk %p bs %p offset %"PRId64" bytes %u flags 0x%x"
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blk_co_pwritev(void *blk, void *bs, int64_t offset, unsigned int bytes, int flags) "blk %p bs %p offset %"PRId64" bytes %u flags 0x%x"
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blk_root_attach(void *child, void *blk, void *bs) "child %p blk %p bs %p"
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blk_root_detach(void *child, void *blk, void *bs) "child %p blk %p bs %p"
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# io.c
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bdrv_co_preadv(void *bs, int64_t offset, int64_t nbytes, unsigned int flags) "bs %p offset %"PRId64" nbytes %"PRId64" flags 0x%x"
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bdrv_co_pwritev(void *bs, int64_t offset, int64_t nbytes, unsigned int flags) "bs %p offset %"PRId64" nbytes %"PRId64" flags 0x%x"
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bdrv_co_pwrite_zeroes(void *bs, int64_t offset, int count, int flags) "bs %p offset %"PRId64" count %d flags 0x%x"
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bdrv_co_do_copy_on_readv(void *bs, int64_t offset, unsigned int bytes, int64_t cluster_offset, int64_t cluster_bytes) "bs %p offset %"PRId64" bytes %u cluster_offset %"PRId64" cluster_bytes %"PRId64
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bdrv_co_copy_range_from(void *src, uint64_t src_offset, void *dst, uint64_t dst_offset, uint64_t bytes, int read_flags, int write_flags) "src %p offset %"PRIu64" dst %p offset %"PRIu64" bytes %"PRIu64" rw flags 0x%x 0x%x"
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bdrv_co_copy_range_to(void *src, uint64_t src_offset, void *dst, uint64_t dst_offset, uint64_t bytes, int read_flags, int write_flags) "src %p offset %"PRIu64" dst %p offset %"PRIu64" bytes %"PRIu64" rw flags 0x%x 0x%x"
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# stream.c
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stream_one_iteration(void *s, int64_t offset, uint64_t bytes, int is_allocated) "s %p offset %" PRId64 " bytes %" PRIu64 " is_allocated %d"
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stream_start(void *bs, void *base, void *s) "bs %p base %p s %p"
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# commit.c
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commit_one_iteration(void *s, int64_t offset, uint64_t bytes, int is_allocated) "s %p offset %" PRId64 " bytes %" PRIu64 " is_allocated %d"
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commit_start(void *bs, void *base, void *top, void *s) "bs %p base %p top %p s %p"
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# mirror.c
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mirror_start(void *bs, void *s, void *opaque) "bs %p s %p opaque %p"
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mirror_restart_iter(void *s, int64_t cnt) "s %p dirty count %"PRId64
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mirror_before_flush(void *s) "s %p"
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mirror_before_drain(void *s, int64_t cnt) "s %p dirty count %"PRId64
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mirror_before_sleep(void *s, int64_t cnt, int synced, uint64_t delay_ns) "s %p dirty count %"PRId64" synced %d delay %"PRIu64"ns"
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mirror_one_iteration(void *s, int64_t offset, uint64_t bytes) "s %p offset %" PRId64 " bytes %" PRIu64
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mirror_iteration_done(void *s, int64_t offset, uint64_t bytes, int ret) "s %p offset %" PRId64 " bytes %" PRIu64 " ret %d"
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mirror_yield(void *s, int64_t cnt, int buf_free_count, int in_flight) "s %p dirty count %"PRId64" free buffers %d in_flight %d"
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mirror_yield_in_flight(void *s, int64_t offset, int in_flight) "s %p offset %" PRId64 " in_flight %d"
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# backup.c
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backup_do_cow_enter(void *job, int64_t start, int64_t offset, uint64_t bytes) "job %p start %" PRId64 " offset %" PRId64 " bytes %" PRIu64
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backup_do_cow_return(void *job, int64_t offset, uint64_t bytes, int ret) "job %p offset %" PRId64 " bytes %" PRIu64 " ret %d"
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backup_do_cow_skip(void *job, int64_t start) "job %p start %"PRId64
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backup_do_cow_process(void *job, int64_t start) "job %p start %"PRId64
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backup_do_cow_read_fail(void *job, int64_t start, int ret) "job %p start %"PRId64" ret %d"
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backup_do_cow_write_fail(void *job, int64_t start, int ret) "job %p start %"PRId64" ret %d"
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backup_do_cow_copy_range_fail(void *job, int64_t start, int ret) "job %p start %"PRId64" ret %d"
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# ../blockdev.c
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qmp_block_job_cancel(void *job) "job %p"
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qmp_block_job_pause(void *job) "job %p"
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qmp_block_job_resume(void *job) "job %p"
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qmp_block_job_complete(void *job) "job %p"
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qmp_block_job_finalize(void *job) "job %p"
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qmp_block_job_dismiss(void *job) "job %p"
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qmp_block_stream(void *bs, void *job) "bs %p job %p"
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# file-posix.c
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# file-win32.c
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file_paio_submit(void *acb, void *opaque, int64_t offset, int count, int type) "acb %p opaque %p offset %"PRId64" count %d type %d"
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file_copy_file_range(void *bs, int src, int64_t src_off, int dst, int64_t dst_off, int64_t bytes, int flags, int64_t ret) "bs %p src_fd %d offset %"PRIu64" dst_fd %d offset %"PRIu64" bytes %"PRIu64" flags %d ret %"PRId64
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# qcow2.c
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qcow2_writev_start_req(void *co, int64_t offset, int bytes) "co %p offset 0x%" PRIx64 " bytes %d"
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qcow2_writev_done_req(void *co, int ret) "co %p ret %d"
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qcow2_writev_start_part(void *co) "co %p"
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qcow2_writev_done_part(void *co, int cur_bytes) "co %p cur_bytes %d"
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qcow2_writev_data(void *co, uint64_t offset) "co %p offset 0x%" PRIx64
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qcow2_pwrite_zeroes_start_req(void *co, int64_t offset, int count) "co %p offset 0x%" PRIx64 " count %d"
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qcow2_pwrite_zeroes(void *co, int64_t offset, int count) "co %p offset 0x%" PRIx64 " count %d"
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# qcow2-cluster.c
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qcow2_alloc_clusters_offset(void *co, uint64_t offset, int bytes) "co %p offset 0x%" PRIx64 " bytes %d"
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qcow2_handle_copied(void *co, uint64_t guest_offset, uint64_t host_offset, uint64_t bytes) "co %p guest_offset 0x%" PRIx64 " host_offset 0x%" PRIx64 " bytes 0x%" PRIx64
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qcow2_handle_alloc(void *co, uint64_t guest_offset, uint64_t host_offset, uint64_t bytes) "co %p guest_offset 0x%" PRIx64 " host_offset 0x%" PRIx64 " bytes 0x%" PRIx64
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qcow2_do_alloc_clusters_offset(void *co, uint64_t guest_offset, uint64_t host_offset, int nb_clusters) "co %p guest_offset 0x%" PRIx64 " host_offset 0x%" PRIx64 " nb_clusters %d"
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qcow2_cluster_alloc_phys(void *co) "co %p"
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qcow2_cluster_link_l2(void *co, int nb_clusters) "co %p nb_clusters %d"
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qcow2_l2_allocate(void *bs, int l1_index) "bs %p l1_index %d"
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qcow2_l2_allocate_get_empty(void *bs, int l1_index) "bs %p l1_index %d"
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qcow2_l2_allocate_write_l2(void *bs, int l1_index) "bs %p l1_index %d"
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qcow2_l2_allocate_write_l1(void *bs, int l1_index) "bs %p l1_index %d"
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qcow2_l2_allocate_done(void *bs, int l1_index, int ret) "bs %p l1_index %d ret %d"
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# qcow2-cache.c
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qcow2_cache_get(void *co, int c, uint64_t offset, bool read_from_disk) "co %p is_l2_cache %d offset 0x%" PRIx64 " read_from_disk %d"
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qcow2_cache_get_replace_entry(void *co, int c, int i) "co %p is_l2_cache %d index %d"
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qcow2_cache_get_read(void *co, int c, int i) "co %p is_l2_cache %d index %d"
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qcow2_cache_get_done(void *co, int c, int i) "co %p is_l2_cache %d index %d"
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qcow2_cache_flush(void *co, int c) "co %p is_l2_cache %d"
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qcow2_cache_entry_flush(void *co, int c, int i) "co %p is_l2_cache %d index %d"
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# qed-l2-cache.c
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qed_alloc_l2_cache_entry(void *l2_cache, void *entry) "l2_cache %p entry %p"
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qed_unref_l2_cache_entry(void *entry, int ref) "entry %p ref %d"
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qed_find_l2_cache_entry(void *l2_cache, void *entry, uint64_t offset, int ref) "l2_cache %p entry %p offset %"PRIu64" ref %d"
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# qed-table.c
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qed_read_table(void *s, uint64_t offset, void *table) "s %p offset %"PRIu64" table %p"
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qed_read_table_cb(void *s, void *table, int ret) "s %p table %p ret %d"
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qed_write_table(void *s, uint64_t offset, void *table, unsigned int index, unsigned int n) "s %p offset %"PRIu64" table %p index %u n %u"
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qed_write_table_cb(void *s, void *table, int flush, int ret) "s %p table %p flush %d ret %d"
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# qed.c
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qed_need_check_timer_cb(void *s) "s %p"
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qed_start_need_check_timer(void *s) "s %p"
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qed_cancel_need_check_timer(void *s) "s %p"
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qed_aio_complete(void *s, void *acb, int ret) "s %p acb %p ret %d"
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qed_aio_setup(void *s, void *acb, int64_t sector_num, int nb_sectors, void *opaque, int flags) "s %p acb %p sector_num %"PRId64" nb_sectors %d opaque %p flags 0x%x"
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qed_aio_next_io(void *s, void *acb, int ret, uint64_t cur_pos) "s %p acb %p ret %d cur_pos %"PRIu64
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qed_aio_read_data(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu"
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qed_aio_write_data(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu"
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qed_aio_write_prefill(void *s, void *acb, uint64_t start, size_t len, uint64_t offset) "s %p acb %p start %"PRIu64" len %zu offset %"PRIu64
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qed_aio_write_postfill(void *s, void *acb, uint64_t start, size_t len, uint64_t offset) "s %p acb %p start %"PRIu64" len %zu offset %"PRIu64
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qed_aio_write_main(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu"
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# vxhs.c
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vxhs_iio_callback(int error) "ctx is NULL: error %d"
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vxhs_iio_callback_chnfail(int err, int error) "QNIO channel failed, no i/o %d, %d"
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vxhs_iio_callback_unknwn(int opcode, int err) "unexpected opcode %d, errno %d"
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vxhs_aio_rw_invalid(int req) "Invalid I/O request iodir %d"
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vxhs_aio_rw_ioerr(char *guid, int iodir, uint64_t size, uint64_t off, void *acb, int ret, int err) "IO ERROR (vDisk %s) FOR : Read/Write = %d size = %"PRIu64" offset = %"PRIu64" ACB = %p. Error = %d, errno = %d"
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vxhs_get_vdisk_stat_err(char *guid, int ret, int err) "vDisk (%s) stat ioctl failed, ret = %d, errno = %d"
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vxhs_get_vdisk_stat(char *vdisk_guid, uint64_t vdisk_size) "vDisk %s stat ioctl returned size %"PRIu64
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vxhs_complete_aio(void *acb, uint64_t ret) "aio failed acb %p ret %"PRIu64
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vxhs_parse_uri_filename(const char *filename) "URI passed via bdrv_parse_filename %s"
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vxhs_open_vdiskid(const char *vdisk_id) "Opening vdisk-id %s"
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vxhs_open_hostinfo(char *of_vsa_addr, int port) "Adding host %s:%d to BDRVVXHSState"
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vxhs_open_iio_open(const char *host) "Failed to connect to storage agent on host %s"
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vxhs_parse_uri_hostinfo(char *host, int port) "Host: IP %s, Port %d"
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vxhs_close(char *vdisk_guid) "Closing vdisk %s"
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vxhs_get_creds(const char *cacert, const char *client_key, const char *client_cert) "cacert %s, client_key %s, client_cert %s"
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# nvme.c
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nvme_kick(void *s, int queue) "s %p queue %d"
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nvme_dma_flush_queue_wait(void *s) "s %p"
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nvme_error(int cmd_specific, int sq_head, int sqid, int cid, int status) "cmd_specific %d sq_head %d sqid %d cid %d status 0x%x"
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nvme_process_completion(void *s, int index, int inflight) "s %p queue %d inflight %d"
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nvme_process_completion_queue_busy(void *s, int index) "s %p queue %d"
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nvme_complete_command(void *s, int index, int cid) "s %p queue %d cid %d"
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nvme_submit_command(void *s, int index, int cid) "s %p queue %d cid %d"
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nvme_submit_command_raw(int c0, int c1, int c2, int c3, int c4, int c5, int c6, int c7) "%02x %02x %02x %02x %02x %02x %02x %02x"
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nvme_handle_event(void *s) "s %p"
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nvme_poll_cb(void *s) "s %p"
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nvme_prw_aligned(void *s, int is_write, uint64_t offset, uint64_t bytes, int flags, int niov) "s %p is_write %d offset %"PRId64" bytes %"PRId64" flags %d niov %d"
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nvme_qiov_unaligned(const void *qiov, int n, void *base, size_t size, int align) "qiov %p n %d base %p size 0x%zx align 0x%x"
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nvme_prw_buffered(void *s, uint64_t offset, uint64_t bytes, int niov, int is_write) "s %p offset %"PRId64" bytes %"PRId64" niov %d is_write %d"
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nvme_rw_done(void *s, int is_write, uint64_t offset, uint64_t bytes, int ret) "s %p is_write %d offset %"PRId64" bytes %"PRId64" ret %d"
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nvme_dma_map_flush(void *s) "s %p"
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nvme_free_req_queue_wait(void *q) "q %p"
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nvme_cmd_map_qiov(void *s, void *cmd, void *req, void *qiov, int entries) "s %p cmd %p req %p qiov %p entries %d"
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nvme_cmd_map_qiov_pages(void *s, int i, uint64_t page) "s %p page[%d] 0x%"PRIx64
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nvme_cmd_map_qiov_iov(void *s, int i, void *page, int pages) "s %p iov[%d] %p pages %d"
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# iscsi.c
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iscsi_xcopy(void *src_lun, uint64_t src_off, void *dst_lun, uint64_t dst_off, uint64_t bytes, int ret) "src_lun %p offset %"PRIu64" dst_lun %p offset %"PRIu64" bytes %"PRIu64" ret %d"
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# nbd-client.c
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nbd_parse_blockstatus_compliance(const char *err) "ignoring extra data from non-compliant server: %s"
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nbd_structured_read_compliance(const char *type) "server sent non-compliant unaligned read %s chunk"
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nbd_read_reply_entry_fail(int ret, const char *err) "ret = %d, err: %s"
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nbd_co_request_fail(uint64_t from, uint32_t len, uint64_t handle, uint16_t flags, uint16_t type, const char *name, int ret, const char *err) "Request failed { .from = %" PRIu64", .len = %" PRIu32 ", .handle = %" PRIu64 ", .flags = 0x%" PRIx16 ", .type = %" PRIu16 " (%s) } ret = %d, err: %s"
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# ssh.c
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ssh_restart_coroutine(void *co) "co=%p"
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ssh_flush(void) "fsync"
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ssh_check_host_key_knownhosts(const char *key) "host key OK: %s"
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ssh_connect_to_ssh(char *path, int flags, int mode) "opening file %s flags=0x%x creat_mode=0%o"
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ssh_co_yield(int sock, void *rd_handler, void *wr_handler) "s->sock=%d rd_handler=%p wr_handler=%p"
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ssh_co_yield_back(int sock) "s->sock=%d - back"
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ssh_getlength(int64_t length) "length=%" PRIi64
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ssh_co_create_opts(uint64_t size) "total_size=%" PRIu64
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ssh_read(int64_t offset, size_t size) "offset=%" PRIi64 " size=%zu"
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ssh_read_buf(void *buf, size_t size) "sftp_read buf=%p size=%zu"
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ssh_read_return(ssize_t ret) "sftp_read returned %zd"
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ssh_write(int64_t offset, size_t size) "offset=%" PRIi64 " size=%zu"
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ssh_write_buf(void *buf, size_t size) "sftp_write buf=%p size=%zu"
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ssh_write_return(ssize_t ret) "sftp_write returned %zd"
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ssh_seek(int64_t offset) "seeking to offset=%" PRIi64
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# curl.c
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curl_timer_cb(long timeout_ms) "timer callback timeout_ms %ld"
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curl_sock_cb(int action, int fd) "sock action %d on fd %d"
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curl_read_cb(size_t realsize) "just reading %zu bytes"
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curl_open(const char *file) "opening %s"
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curl_open_size(uint64_t size) "size = %" PRIu64
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curl_setup_preadv(uint64_t bytes, uint64_t start, const char *range) "reading %" PRIu64 " at %" PRIu64 " (%s)"
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curl_close(void) "close"
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# file-posix.c
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file_xfs_write_zeroes(const char *error) "cannot write zero range (%s)"
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file_xfs_discard(const char *error) "cannot punch hole (%s)"
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file_FindEjectableOpticalMedia(const char *media) "Matching using %s"
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file_setup_cdrom(const char *partition) "Using %s as optical disc"
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file_hdev_is_sg(int type, int version) "SG device found: type=%d, version=%d"
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# sheepdog.c
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sheepdog_reconnect_to_sdog(void) "Wait for connection to be established"
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sheepdog_aio_read_response(void) "disable cache since the server doesn't support it"
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sheepdog_open(uint32_t vid) "0x%" PRIx32 " snapshot inode was open"
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sheepdog_close(const char *name) "%s"
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sheepdog_create_branch_snapshot(uint32_t vdi) "0x%" PRIx32 " is snapshot"
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sheepdog_create_branch_created(uint32_t vdi) "0x%" PRIx32 " is created"
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sheepdog_create_branch_new(uint32_t vdi) "0x%" PRIx32 " was newly created"
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sheepdog_co_rw_vector_update(uint32_t vdi, uint64_t oid, uint64_t data, long idx) "update ino (%" PRIu32 ") %" PRIu64 " %" PRIu64 " %ld"
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sheepdog_co_rw_vector_new(uint64_t oid) "new oid 0x%" PRIx64
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sheepdog_snapshot_create_info(const char *sn_name, const char *id, const char *name, int64_t size, int is_snapshot) "sn_info: name %s id_str %s s: name %s vm_state_size %" PRId64 " " "is_snapshot %d"
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sheepdog_snapshot_create(const char *sn_name, const char *id) "%s %s"
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sheepdog_snapshot_create_inode(const char *name, uint32_t snap, uint32_t vdi) "s->inode: name %s snap_id 0x%" PRIx32 " vdi 0x%" PRIx32
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