On 3/27/24 20:37, Melanie Plageman wrote:
> On Mon, Mar 25, 2024 at 12:07:09PM -0400, Melanie Plageman wrote:
>> On Sun, Mar 24, 2024 at 06:37:20PM -0400, Melanie Plageman wrote:
>>> On Sun, Mar 24, 2024 at 5:59 PM Tomas Vondra
>>> <tomas.von...@enterprisedb.com> wrote:
>>>>
>>>> BTW when you say "up to 'Make table_scan_bitmap_next_block() async
>>>> friendly'" do you mean including that patch, or that this is the first
>>>> patch that is not one of the independently useful patches.
>>>
>>> I think the code is easier to understand with "Make
>>> table_scan_bitmap_next_block() async friendly". Prior to that commit,
>>> table_scan_bitmap_next_block() could return false even when the bitmap
>>> has more blocks and expects the caller to handle this and invoke it
>>> again. I think that interface is very confusing. The downside of the
>>> code in that state is that the code for prefetching is still in the
>>> BitmapHeapNext() code and the code for getting the current block is in
>>> the heap AM-specific code. I took a stab at fixing this in v9's 0013,
>>> but the outcome wasn't very attractive.
>>>
>>> What I will do tomorrow is reorder and group the commits such that all
>>> of the commits that are useful independent of streaming read are first
>>> (I think 0014 and 0015 are independently valuable but they are on top
>>> of some things that are only useful to streaming read because they are
>>> more recently requested changes). I think I can actually do a bit of
>>> simplification in terms of how many commits there are and what is in
>>> each. Just to be clear, v9 is still reviewable. I am just going to go
>>> back and change what is included in each commit.
>>
>> So, attached v10 does not include the new version of streaming read API.
>> I focused instead on the refactoring patches commit regrouping I
>> mentioned here.
>
> Attached v11 has the updated Read Stream API Thomas sent this morning
> [1]. No other changes.
>
I think there's some sort of bug, triggering this assert in heapam
Assert(BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno);
I haven't looked for the root cause, and it's not exactly deterministic,
but try this:
create table t (a int, b text);
insert into t select 10000 * random(), md5(i::text)
from generate_series(1,10000000) s(i);^C
create index on t (a);
explain analyze select * from t where a = 200;
explain analyze select * from t where a < 200;
and then vary the condition a bit (different values, inequalities,
etc.). For me it hits the assert in a couple tries.
regards
--
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company0x000079ff48a73d37 in epoll_wait () from /lib64/libc.so.6
Missing separate debuginfos, use: dnf debuginfo-install
glibc-2.37-18.fc38.x86_64 libgcc-13.2.1-4.fc38.x86_64 libicu-72.1-2.fc38.x86_64
libstdc++-13.2.1-4.fc38.x86_64 zlib-1.2.13-3.fc38.x86_64
(gdb) c
Continuing.
Program received signal SIGABRT, Aborted.
0x000079ff489ef884 in __pthread_kill_implementation () from /lib64/libc.so.6
(gdb) bt
#0 0x000079ff489ef884 in __pthread_kill_implementation () from /lib64/libc.so.6
#1 0x000079ff4899eafe in raise () from /lib64/libc.so.6
#2 0x000079ff4898787f in abort () from /lib64/libc.so.6
#3 0x00000000009ba563 in ExceptionalCondition
(conditionName=conditionName@entry=0xa209e0
"BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno",
fileName=fileName@entry=0xa205b4 "heapam_handler.c",
lineNumber=lineNumber@entry=2221) at assert.c:66
#4 0x000000000057759f in heapam_scan_bitmap_next_block (exact_pages=<optimized
out>, lossy_pages=<optimized out>, recheck=<optimized out>, scan=0x1e73548) at
heapam_handler.c:2221
#5 heapam_scan_bitmap_next_tuple (scan=0x1e73548, slot=<optimized out>,
recheck=<optimized out>, lossy_pages=<optimized out>, exact_pages=<optimized
out>) at heapam_handler.c:2359
#6 0x00000000006f58bb in table_scan_bitmap_next_tuple (exact_pages=<optimized
out>, lossy_pages=<optimized out>, recheck=<optimized out>, slot=<optimized
out>, scan=<optimized out>) at ../../../src/include/access/tableam.h:2022
#7 BitmapHeapNext (node=0x1e71fc8) at nodeBitmapHeapscan.c:202
#8 0x00000000006e46b8 in ExecProcNodeInstr (node=0x1e71fc8) at
execProcnode.c:480
#9 0x00000000006dd6fa in ExecProcNode (node=0x1e71fc8) at
../../../src/include/executor/executor.h:274
#10 ExecutePlan (execute_once=<optimized out>, dest=0xb755e0 <donothingDR>,
direction=<optimized out>, numberTuples=0, sendTuples=true,
operation=CMD_SELECT, use_parallel_mode=<optimized out>, planstate=0x1e71fc8,
estate=0x1e71d80) at execMain.c:1644
#11 standard_ExecutorRun (queryDesc=0x1e6c500, direction=<optimized out>,
count=0, execute_once=<optimized out>) at execMain.c:363
#12 0x000000000067af84 in ExplainOnePlan
(plannedstmt=plannedstmt@entry=0x1e6c3f0, into=into@entry=0x0,
es=es@entry=0x1db3138, queryString=queryString@entry=0x1d87f60 "explain analyze
select * from t where a = 200;", params=params@entry=0x0,
queryEnv=queryEnv@entry=0x0,
planduration=0x7ffcbe111ac8, bufusage=0x0, mem_counters=0x0) at
explain.c:645
#13 0x000000000067b417 in standard_ExplainOneQuery (query=<optimized out>,
cursorOptions=2048, into=0x0, es=0x1db3138, queryString=0x1d87f60 "explain
analyze select * from t where a = 200;", params=0x0, queryEnv=0x0) at
explain.c:459
#14 0x000000000067badb in ExplainQuery (pstate=0x1db3028, stmt=0x1d88e10,
params=0x0, dest=0x1db2f98) at ../../../src/include/nodes/nodes.h:172
#15 0x0000000000894026 in standard_ProcessUtility (pstmt=0x1d88f60,
queryString=0x1d87f60 "explain analyze select * from t where a = 200;",
readOnlyTree=<optimized out>, context=PROCESS_UTILITY_TOPLEVEL, params=0x0,
queryEnv=0x0, dest=0x1db2f98, qc=0x7ffcbe111d80)
at utility.c:863
#16 0x00000000008923cf in PortalRunUtility (portal=portal@entry=0x1e04680,
pstmt=0x1d88f60, isTopLevel=true, setHoldSnapshot=setHoldSnapshot@entry=true,
dest=dest@entry=0x1db2f98, qc=qc@entry=0x7ffcbe111d80) at pquery.c:1158
#17 0x0000000000892850 in FillPortalStore (portal=portal@entry=0x1e04680,
isTopLevel=isTopLevel@entry=true) at ../../../src/include/nodes/nodes.h:172
#18 0x0000000000892b6d in PortalRun (portal=portal@entry=0x1e04680,
count=count@entry=9223372036854775807, isTopLevel=isTopLevel@entry=true,
run_once=run_once@entry=true, dest=dest@entry=0x1dbb518,
altdest=altdest@entry=0x1dbb518, qc=0x7ffcbe111f60) at pquery.c:763
#19 0x000000000088ec7f in exec_simple_query (query_string=0x1d87f60 "explain
analyze select * from t where a = 200;") at postgres.c:1274
#20 0x000000000089050e in PostgresMain (dbname=<optimized out>,
username=<optimized out>) at postgres.c:4680
#21 0x000000000088b65d in BackendMain (startup_data=<optimized out>,
startup_data_len=<optimized out>) at backend_startup.c:101
#22 0x00000000007f52e5 in postmaster_child_launch
(child_type=child_type@entry=B_BACKEND,
startup_data=startup_data@entry=0x7ffcbe1123ac "",
startup_data_len=startup_data_len@entry=4,
client_sock=client_sock@entry=0x7ffcbe1123b0) at launch_backend.c:265
#23 0x00000000007f8dbe in BackendStartup (client_sock=0x7ffcbe1123b0) at
postmaster.c:3593
#24 ServerLoop () at postmaster.c:1674
#25 0x00000000007fa8f8 in PostmasterMain (argc=argc@entry=3,
argv=argv@entry=0x1d816a0) at postmaster.c:1372
#26 0x000000000051b499 in main (argc=3, argv=0x1d816a0) at main.c:197
(gdb) up
#1 0x000079ff4899eafe in raise () from /lib64/libc.so.6
(gdb) up
#2 0x000079ff4898787f in abort () from /lib64/libc.so.6
(gdb) up
#3 0x00000000009ba563 in ExceptionalCondition
(conditionName=conditionName@entry=0xa209e0
"BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno",
fileName=fileName@entry=0xa205b4 "heapam_handler.c",
lineNumber=lineNumber@entry=2221) at assert.c:66
66 abort();
(gdb) up
#4 0x000000000057759f in heapam_scan_bitmap_next_block (exact_pages=<optimized
out>, lossy_pages=<optimized out>, recheck=<optimized out>, scan=0x1e73548) at
heapam_handler.c:2221
2221 Assert(BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno);
(gdb) up
#5 heapam_scan_bitmap_next_tuple (scan=0x1e73548, slot=<optimized out>,
recheck=<optimized out>, lossy_pages=<optimized out>, exact_pages=<optimized
out>) at heapam_handler.c:2359
2359 if (!heapam_scan_bitmap_next_block(scan, recheck,
(gdb) down
#4 0x000000000057759f in heapam_scan_bitmap_next_block (exact_pages=<optimized
out>, lossy_pages=<optimized out>, recheck=<optimized out>, scan=0x1e73548) at
heapam_handler.c:2221
2221 Assert(BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno);
(gdb) p hscan->rs_cbuf
$1 = 6079
(gdb) p tmbres->blockno
No symbol "tmbres" in current context.
(gdb) p tmbres->blckno
No symbol "tmbres" in current context.
(gdb) p tbmres->blckno
There is no member named blckno.
(gdb) p tbmres->blockno
$2 = 66433
(gdb) bt full
#0 0x000079ff489ef884 in __pthread_kill_implementation () from /lib64/libc.so.6
No symbol table info available.
#1 0x000079ff4899eafe in raise () from /lib64/libc.so.6
No symbol table info available.
#2 0x000079ff4898787f in abort () from /lib64/libc.so.6
No symbol table info available.
#3 0x00000000009ba563 in ExceptionalCondition
(conditionName=conditionName@entry=0xa209e0
"BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno",
fileName=fileName@entry=0xa205b4 "heapam_handler.c",
lineNumber=lineNumber@entry=2221) at assert.c:66
No locals.
#4 0x000000000057759f in heapam_scan_bitmap_next_block (exact_pages=<optimized
out>, lossy_pages=<optimized out>, recheck=<optimized out>, scan=0x1e73548) at
heapam_handler.c:2221
hscan = 0x1e73548
per_buffer_data = 0x1e793d8
block = <optimized out>
buffer = <optimized out>
snapshot = <optimized out>
ntup = <optimized out>
tbmres = 0x1e793d8
hscan = <optimized out>
per_buffer_data = <optimized out>
block = <optimized out>
buffer = <optimized out>
snapshot = <optimized out>
ntup = <optimized out>
tbmres = <optimized out>
curslot = <optimized out>
offnum = <optimized out>
tid = <optimized out>
heapTuple = <optimized out>
page = <optimized out>
maxoff = <optimized out>
offnum = <optimized out>
lp = <optimized out>
loctup = <optimized out>
valid = <optimized out>
#5 heapam_scan_bitmap_next_tuple (scan=0x1e73548, slot=<optimized out>,
recheck=<optimized out>, lossy_pages=<optimized out>, exact_pages=<optimized
out>) at heapam_handler.c:2359
hscan = 0x1e73548
targoffset = <optimized out>
page = <optimized out>
lp = <optimized out>
#6 0x00000000006f58bb in table_scan_bitmap_next_tuple (exact_pages=<optimized
out>, lossy_pages=<optimized out>, recheck=<optimized out>, slot=<optimized
out>, scan=<optimized out>) at ../../../src/include/access/tableam.h:2022
__func__ = "table_scan_bitmap_next_tuple"
__errno_location = <optimized out>
#7 BitmapHeapNext (node=0x1e71fc8) at nodeBitmapHeapscan.c:202
econtext = 0x1e721d8
scan = <optimized out>
tbm = <optimized out>
slot = 0x1e729e8
dsa = <optimized out>
__func__ = "BitmapHeapNext"
#8 0x00000000006e46b8 in ExecProcNodeInstr (node=0x1e71fc8) at
execProcnode.c:480
result = <optimized out>
#9 0x00000000006dd6fa in ExecProcNode (node=0x1e71fc8) at
../../../src/include/executor/executor.h:274
No locals.
#10 ExecutePlan (execute_once=<optimized out>, dest=0xb755e0 <donothingDR>,
direction=<optimized out>, numberTuples=0, sendTuples=true,
operation=CMD_SELECT, use_parallel_mode=<optimized out>, planstate=0x1e71fc8,
estate=0x1e71d80) at execMain.c:1644
slot = <optimized out>
current_tuple_count = 812
slot = <optimized out>
current_tuple_count = <optimized out>
#11 standard_ExecutorRun (queryDesc=0x1e6c500, direction=<optimized out>,
count=0, execute_once=<optimized out>) at execMain.c:363
estate = 0x1e71d80
operation = CMD_SELECT
dest = 0xb755e0 <donothingDR>
sendTuples = <optimized out>
oldcontext = 0x1db2df0
__func__ = "standard_ExecutorRun"
#12 0x000000000067af84 in ExplainOnePlan
(plannedstmt=plannedstmt@entry=0x1e6c3f0, into=into@entry=0x0,
es=es@entry=0x1db3138, queryString=queryString@entry=0x1d87f60 "explain analyze
select * from t where a = 200;", params=params@entry=0x0,
queryEnv=queryEnv@entry=0x0,
planduration=0x7ffcbe111ac8, bufusage=0x0, mem_counters=0x0) at
explain.c:645
dir = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--
dest = <optimized out>
queryDesc = 0x1e6c500
starttime = <optimized out>
totaltime = 0
eflags = <optimized out>
instrument_option = <optimized out>
#13 0x000000000067b417 in standard_ExplainOneQuery (query=<optimized out>,
cursorOptions=2048, into=0x0, es=0x1db3138, queryString=0x1d87f60 "explain
analyze select * from t where a = 200;", params=0x0, queryEnv=0x0) at
explain.c:459
plan = 0x1e6c3f0
planstart = <optimized out>
planduration = {ticks = 314825}
bufusage_start = {shared_blks_hit = 1, shared_blks_read =
134137333210088, shared_blks_dirtied = 16407, shared_blks_written = 8868755,
local_blks_hit = 70467528441856, local_blks_read = 72057594037927936,
local_blks_dirtied = 134137333210088,
local_blks_written = 1, temp_blks_read = 0, temp_blks_written =
10151148, shared_blk_read_time = {ticks = 0}, shared_blk_write_time = {ticks =
5433722}, local_blk_read_time = {ticks = 134137333210088}, local_blk_write_time
= {ticks = 70368744194071},
temp_blk_read_time = {ticks = 30970240}, temp_blk_write_time = {ticks
= 8648921}}
bufusage = {shared_blks_hit = 387345, shared_blks_read = 306578389,
shared_blks_dirtied = 0, shared_blks_written = 0, local_blks_hit = 0,
local_blks_read = 201863462913, local_blks_dirtied = 65, local_blks_written =
7, temp_blks_read = 5,
temp_blks_written = 10379061, shared_blk_read_time = {ticks = 0},
shared_blk_write_time = {ticks = 7608353}, local_blk_read_time = {ticks = 0},
local_blk_write_time = {ticks = 30969968}, temp_blk_read_time = {ticks = 0},
temp_blk_write_time = {ticks = 7609255}}
mem_counters = {nblocks = 0, freechunks = 8876259, totalspace =
70467528441856, freespace = 72057594037927936}
planner_ctx = 0x0
saved_ctx = 0x0
#14 0x000000000067badb in ExplainQuery (pstate=0x1db3028, stmt=0x1d88e10,
params=0x0, dest=0x1db2f98) at ../../../src/include/nodes/nodes.h:172
l__state = {l = <optimized out>, i = 0}
l = 0x1e74140
es = 0x1db3138
tstate = <optimized out>
jstate = <optimized out>
query = <optimized out>
rewritten = 0x1e74128
lc = <optimized out>
timing_set = <optimized out>
summary_set = <optimized out>
__func__ = "ExplainQuery"
#15 0x0000000000894026 in standard_ProcessUtility (pstmt=0x1d88f60,
queryString=0x1d87f60 "explain analyze select * from t where a = 200;",
readOnlyTree=<optimized out>, context=PROCESS_UTILITY_TOPLEVEL, params=0x0,
queryEnv=0x0, dest=0x1db2f98, qc=0x7ffcbe111d80)
at utility.c:863
parsetree = 0x1d88e10
isTopLevel = <optimized out>
isAtomicContext = false
pstate = 0x1db3028
readonly_flags = <optimized out>
__func__ = "standard_ProcessUtility"
#16 0x00000000008923cf in PortalRunUtility (portal=portal@entry=0x1e04680,
pstmt=0x1d88f60, isTopLevel=true, setHoldSnapshot=setHoldSnapshot@entry=true,
dest=dest@entry=0x1db2f98, qc=qc@entry=0x7ffcbe111d80) at pquery.c:1158
No locals.
#17 0x0000000000892850 in FillPortalStore (portal=portal@entry=0x1e04680,
isTopLevel=isTopLevel@entry=true) at ../../../src/include/nodes/nodes.h:172
treceiver = 0x1db2f98
qc = {commandTag = CMDTAG_UNKNOWN, nprocessed = 0}
__func__ = "FillPortalStore"
#18 0x0000000000892b6d in PortalRun (portal=portal@entry=0x1e04680,
count=count@entry=9223372036854775807, isTopLevel=isTopLevel@entry=true,
run_once=run_once@entry=true, dest=dest@entry=0x1dbb518,
altdest=altdest@entry=0x1dbb518, qc=0x7ffcbe111f60) at pquery.c:763
_save_exception_stack = 0x7ffcbe112230
_save_context_stack = 0x0
_local_sigjmp_buf = {{__jmpbuf = {31149072, -109934348456944260,
30969640, 140723497279328, 31475328, 31175960, 108104918559890812,
-109935865491088004}, __mask_was_saved = 0, __saved_mask = {__val = {31486888,
2817148525, 0, 0, 10501697, 0, 31483536, 12414709,
31475328, 12414709, 1, 153, 30969616, 31176984, 10382623,
31475328}}}}
_do_rethrow = <optimized out>
result = <optimized out>
nprocessed = <optimized out>
saveTopTransactionResourceOwner = 0x1dc4018
saveTopTransactionContext = 0x1db4c10
saveActivePortal = 0x0
saveResourceOwner = 0x1dc4018
savePortalContext = 0x0
saveMemoryContext = 0x1db4c10
__func__ = "PortalRun"
#19 0x000000000088ec7f in exec_simple_query (query_string=0x1d87f60 "explain
analyze select * from t where a = 200;") at postgres.c:1274
cmdtaglen = 7
snapshot_set = <optimized out>
per_parsetree_context = 0x0
plantree_list = <optimized out>
parsetree = <optimized out>
commandTag = <optimized out>
qc = {commandTag = CMDTAG_UNKNOWN, nprocessed = 0}
--Type <RET> for more, q to quit, c to continue without paging--
querytree_list = <optimized out>
portal = 0x1e04680
receiver = 0x1dbb518
format = 0
cmdtagname = <optimized out>
parsetree_item__state = {l = 0x1d88f10, i = <optimized out>}
dest = DestRemote
oldcontext = 0x1db4c10
parsetree_list = 0x1d88f10
parsetree_item = <optimized out>
save_log_statement_stats = false
was_logged = false
use_implicit_block = false
msec_str = '\000' <repeats 16 times>,
"Q\000\000\000\000\000\000\000Q\000\000\000\000\000\000"
__func__ = "exec_simple_query"
#20 0x000000000089050e in PostgresMain (dbname=<optimized out>,
username=<optimized out>) at postgres.c:4680
query_string = 0x1d87f60 "explain analyze select * from t where a =
200;"
firstchar = <optimized out>
input_message = {data = 0x1d87f60 "explain analyze select * from t
where a = 200;", len = 47, maxlen = 1024, cursor = 47}
local_sigjmp_buf = {{__jmpbuf = {31205072, -109934379334361732, 4, 0,
1711661613, 30973184, 108104918503267708, -109935863615054468},
__mask_was_saved = 1, __saved_mask = {__val = {4194304, 979,
18446744073709551552, 15624, 30973184, 140723497280224,
134137342057842, 0, 7944937237029841664, 140723497280304,
15616, 30938944, 0, 15680, 10344002, 30938944}}}}
send_ready_for_query = false
idle_in_transaction_timeout_enabled = false
idle_session_timeout_enabled = false
__func__ = "PostgresMain"
#21 0x000000000088b65d in BackendMain (startup_data=<optimized out>,
startup_data_len=<optimized out>) at backend_startup.c:101
bsdata = <optimized out>
#22 0x00000000007f52e5 in postmaster_child_launch
(child_type=child_type@entry=B_BACKEND,
startup_data=startup_data@entry=0x7ffcbe1123ac "",
startup_data_len=startup_data_len@entry=4,
client_sock=client_sock@entry=0x7ffcbe1123b0) at launch_backend.c:265
pid = <optimized out>
#23 0x00000000007f8dbe in BackendStartup (client_sock=0x7ffcbe1123b0) at
postmaster.c:3593
bn = 0x1d89d00
pid = <optimized out>
startup_data = {canAcceptConnections = CAC_OK}
bn = <optimized out>
pid = <optimized out>
startup_data = <optimized out>
__func__ = "BackendStartup"
__errno_location = <optimized out>
__errno_location = <optimized out>
save_errno = <optimized out>
__errno_location = <optimized out>
__errno_location = <optimized out>
#24 ServerLoop () at postmaster.c:1674
s = {sock = 10, raddr = {addr = {ss_family = 1,
__ss_padding =
"\000\000\000\000\000\000\360\207\330\001\000\000\000\000\b\344\225H\377y\000\000\000\000\000\000\000\000\000\000H\374\225H\377y\000\000\350$\021\276\374\177\000\000\000\000\000\000\374\177\000\000\024$\021\276\374\177\000\000\250\333\371\003\000\000\000\000\320cA\000\000\000\000\000\032\\E\000\000\000\000\000`d\327",
'\000' <repeats 13 times>, "\b\344\225H\377y\000\000\320\374\225H\377y\000",
__ss_align = 134137344681544}, salen = 2}}
i = 0
now = <optimized out>
last_lockfile_recheck_time = 1711661738
last_touch_time = 1711661613
events = {{pos = 3, events = 2, fd = 8, user_data = 0x0}, {pos = 0,
events = 0, fd = -1106171568, user_data = 0x79ff4895fcd0}, {pos = 1221060168,
events = 31231, fd = 4544639, user_data = 0x7c96e577}, {pos = -1106171472,
events = 32764, fd = -1106171504,
user_data = 0x79ff48c535dc <_dl_lookup_symbol_x+300>}, {pos = 5,
events = 0, fd = 1217789136, user_data = 0x1}, {pos = 0, events = 0, fd = 1,
user_data = 0x79ff48c7e2c0}, {pos = -1106171632, events = 32764, fd =
1218436466, user_data = 0x1d857b0}, {
pos = 30965736, events = 0, fd = 0, user_data = 0x79ff48c7e648},
{pos = -1106171600, events = 32764, fd = 1, user_data = 0x79ff48c7e2c0}, {pos =
-1106171608, events = 32764, fd = 9, user_data = 0xffffffff}, {pos =
1217855464, events = 31231, fd = 1220838640,
user_data = 0xca10}, {pos = 2100392, events = 0, fd = 2, user_data
= 0x1000041c0}, {pos = 1000, events = 0, fd = 1221059264, user_data = 0xf2},
{pos = 4776592, events = 0, fd = 13948816, user_data = 0x1}, {pos =
-1106171408, events = 32764, fd = 1220910653,
user_data = 0x1}, {pos = 0, events = 0, fd = 1217855464, user_data
= 0x79ff48a3bee0 <fork>}, {pos = 0, events = 0, fd = -1106170496, user_data =
0x0}, {pos = 0, events = 0, fd = 30965736, user_data = 0x1}, {pos = 0, events =
0, fd = 1220920014,
user_data = 0x0}, {pos = 1218398648, events = 31231, fd = 0,
user_data = 0xd6a120 <BlockSig>}, {pos = 2, events = 0, fd = 30955440,
user_data = 0x10}, {pos = 1219714176, events = 31231, fd = 255, user_data =
0xffffffffffffffc0}, {pos = 0, events = 0,
fd = 8096, user_data = 0x7ffcbe112aa0}, {pos = 1218436466, events =
31231, fd = 1217889328, user_data = 0x79ff489e0b50 <fputc>}, {pos = 30955440,
events = 0, fd = 4096, user_data = 0x3ff}, {pos = 0, events = 0, fd =
-1106171024,
user_data = 0x79ff489d7869 <_IO_file_doallocate+185>}, {pos =
51728, events = 0, fd = 2100403, user_data = 0x1}, {pos = 33152, events = 1000,
fd = 1000, user_data = 0x0}, {pos = 0, events = 0, fd = 0, user_data = 0x0},
{pos = 0, events = 0, fd = 65535,
user_data = 0xff0000000000ffff}, {pos = 65535, events = 4278190080,
fd = 65535, user_data = 0x79ff48b35ce0 <main_arena+96>}, {pos = 0, events = 0,
fd = 0, user_data = 0x100000000000000}, {pos = 0, events = 0, fd = 255,
user_data = 0x5c5c5c5c5c5c5c5c}, {
pos = 1549556828, events = 1549556828, fd = 0, user_data = 0x0},
{pos = 0, events = 0, fd = 0, user_data = 0x3f3f3f3f3f3f3f3f}, {pos =
1061109567, events = 1061109567, fd = -1717986919, user_data =
0x9999999999999999}, {pos = 538976288, events = 538976288,
fd = 538976288, user_data = 0x0}, {pos = 0, events = 0, fd = 0,
user_data = 0x0}, {pos = 0, events = 0, fd = 0, user_data = 0x1db5e70}, {pos =
-120, events = 4294967295, fd = 0, user_data = 0x1db3bf0}, {pos = 31134352,
events = 0, fd = 30965344,
user_data = 0x7ffcbe112c50}, {pos = 1218437646, events = 31231, fd
= 0, user_data = 0x1db11a0}, {pos = 31134112, events = 0, fd = 31134312,
user_data = 0x2}, {pos = 0, events = 0, fd = 0, user_data = 0x0}, {pos = 0,
events = 0, fd = 200243,
user_data = 0xffffffffffffff88}, {pos = 0, events = 0, fd =
-1106170480, user_data = 0x79ff48a3c0eb <fork+523>}, {pos = 31155248, events =
0, fd = 10350584, user_data = 0x1d87e60}, {pos = 31134112, events = 0, fd =
31134112, user_data = 0x0}, {
pos = -1106170576, events = 32764, fd = 1218426939, user_data =
0x1d857b0}, {pos = 30965344, events = 1, fd = 31134112, user_data = 0x727a9a
<tokenize_auth_file+2170>}, {pos = -1106170512, events = 32764, fd =
-1343231232, user_data = 0x7ffcbe112dc0}, {
pos = -120, events = 4294967295, fd = 0, user_data = 0x79ff489e79e8
<_IO_flush_all_lockp+632>}, {pos = 0, events = 0, fd = 0, user_data =
0x79ff489e5fd0 <flush_cleanup>}, {pos = 0, events = 0, fd = 0, user_data =
0x0}, {pos = 30955440, events = 0,
fd = -1343231232, user_data = 0x0}, {pos = 11, events = 0, fd = 0,
user_data = 0x6e421652afefeb00}, {pos = -1106170480, events = 32764, fd =
1218047373, user_data = 0x0}, {pos = 8343831, events = 0, fd = 4194304,
user_data = 0x1dad740}, {pos = 31134112,
events = 0, fd = 30965736, user_data = 0x0}, {pos = 10350288,
events = 0, fd = 30965344, user_data = 0x1dad740}, {pos = 31119168, events = 0,
fd = 31134112, user_data = 0x1d87fe8}, {pos = 10376739, events = 0, fd =
30938784, user_data = 0x0}, {pos = 30955440,
--Type <RET> for more, q to quit, c to continue without paging--
events = 0, fd = 7520150, user_data = 0xb}, {pos = 0, events = 0,
fd = 0, user_data = 0x0}}
nevents = <optimized out>
__func__ = "ServerLoop"
#25 0x00000000007fa8f8 in PostmasterMain (argc=argc@entry=3,
argv=argv@entry=0x1d816a0) at postmaster.c:1372
opt = <optimized out>
status = <optimized out>
userDoption = <optimized out>
listen_addr_saved = true
output_config_variable = <optimized out>
__func__ = "PostmasterMain"
#26 0x000000000051b499 in main (argc=3, argv=0x1d816a0) at main.c:197
do_check_root = <optimized out>
(gdb)
(gdb) q
A debugging session is active.
Inferior 1 [process 200436] will be detached.
