Rochet2
commented
9 months ago I have experienced a similar issue. When a memory leak occurs, all HTTP (express) and google pubsub traffic stops being processed and memory usage increases steadily until OOM crash occurs for nodejs. This is under Debian GNU/Linux 12 (bookworm), Debian GLIBC 2.36. The issue occurs randomly. It can occur immediately when starting the program or after a week of running fine.
Nodejs version 18.17.1 works fine, but 18.18.2 and 20.10 has the issue. All of them have the same glibc and debian version as far as I see. (Obtained via ldd --version ldd and cat /etc/os-release respectively)
We have tested with ✅ dockerhub node:18.17.1 ❌ dockerhub node:18.18.2 ❌ dockerhub node:20.10
```bash
docker run --rm -it node:20.10 bash -c '/usr/bin/ldd --version ldd && cat /etc/os-release'
ldd (Debian GLIBC 2.36-9+deb12u3) 2.36
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
docker run --rm -it node:18.17.1 bash -c '/usr/bin/ldd --version ldd && cat /etc/os-release'
ldd (Debian GLIBC 2.36-9+deb12u1) 2.36
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
docker run --rm -it node:18.18.2 bash -c '/usr/bin/ldd --version ldd && cat /etc/os-release'
ldd (Debian GLIBC 2.36-9+deb12u3) 2.36
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
NAME="Debian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
```
kibertoad
Version
Node.js 18.19.0 and 18.18.2
Platform
Rocky Linux 9.3 (Blue Onyx), Kernel 5.14.0-362.8.1.el9_3.x86_64
Subsystem
Memory management / Potential glibc compatibility issue
What steps will reproduce the bug?
I'm encountering a critical issue where my Node.js application crashes after running for a period due to a memory leak. This problem persists across Node.js versions 18.19.0 and 18.18.2 on Rocky Linux 9.3 with glibc 2.34. The same application runs smoothly on Debian with glibc 2.28. The correlation with glibc version suggests a potential compatibility problem, but the exact cause is unclear.
Here is a memory usage: (the line with memory leak - app running on Rocky 9.3, other lines - same apps running on Debian)
How often does it reproduce? Is there a required condition?
Always
What is the expected behavior? Why is that the expected behavior?
The Node.js application should maintain stable memory usage over extended periods of operation, without significant memory leaks leading to a crash. The consistent behavior on Debian (glibc 2.28) supports this expectation, indicating that the application itself does not inherently cause memory leaks. The divergence in behavior on Rocky Linux 9.3 with glibc 2.34 suggests an environmental or compatibility issue, rather than a problem intrinsic to the application.
What do you see instead?
Instead of stable memory usage, the Node.js application on Rocky Linux 9.3 shows a continuous increase in memory consumption over time, which is not observed on Debian systems. Eventually, this escalating memory usage leads to a crash of the application. This behavior is unexpected and indicates a potential issue in memory management, possibly linked to environmental differences between Rocky Linux 9.3 and Debian, particularly concerning the glibc version.
Additional information
Call stacks from core dump when process crashed:
threadCount: 21 thread: 0 - stack range: 0x00007fff334ce000-0x00007fff334ef000, size: 132 kB 0x00007fff334df9d0 0x000077dd5f6a154c libc.so.6!+0x7954c
(further unwinding failed, error: -8)
thread: 1 - stack range: 0x000077dd6006a000-0x000077dd60078000, size: 56 kB
0x000077dd60070c90 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 2 - stack range: 0x000077dd46400000-0x000077dd46cfa000, size: 9192 kB
0x000077dd46bfe9b0 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd46bfe9b8 0x000077dd46bfea00 !+0x0
thread: 3 - stack range: 0x000077dd5e5ff000-0x000077dd5edff000, size: 8192 kB
0x000077dd5edfd990 0x0000000000fe56bf node!v8::internal::Sweeper::RawSweep(v8::internal::Page, v8::internal::Sweeper::FreeListRebuildingMode, v8::internal::FreeSpaceTreatmentMode, v8::internal::Sweeper::SweepingMode, v8::base::LockGuard<v8::base::Mutex, (v8::base::NullBehavior)0> const&) [clone .constprop.177]+0xcff
0x000077dd5edfdb90 0x0000000000fe7462 node!v8::internal::Sweeper::ParallelSweepPage(v8::internal::Page, v8::internal::AllocationSpace, v8::internal::Sweeper::SweepingMode) [clone .constprop.176]+0x92
0x000077dd5edfdbe0 0x0000000000fe7f49 node!v8::internal::Sweeper::SweeperJob::Run(v8::JobDelegate)+0x2b9
0x000077dd5edfdca0 0x0000000001aeec34 node!v8::platform::DefaultJobWorker::Run()+0x84
0x000077dd5edfdcf0 0x0000000000c01625 node!node::(anonymous namespace)::PlatformWorkerThread(void)+0x195
0x000077dd5edfdd60 0x000077dd5f69f802 libc.so.6!+0x77802
(further unwinding failed, error: -3)
thread: 4 - stack range: 0x000077dd5ee00000-0x000077dd5f628000, size: 8352 kB
0x000077dd5f5fbb70 0x000077dd5f74e84e libc.so.6!+0x12684e
0x000077dd5f5fbb80 0x0000000001671c7e node!uv_run+0x14e
0x000077dd5f5fed10 0x0000000000c061ab node!node::WorkerThreadsTaskRunner::DelayedTaskScheduler::Start()::{lambda(void)#1}::_FUN(void)+0x7b
0x000077dd5f5fed60 0x000077dd5f69f802 libc.so.6!+0x77802
(further unwinding failed, error: -3)
thread: 5 - stack range: 0x000077dd443fc000-0x000077dd44bfc000, size: 8192 kB
0x000077dd44bfa7b0 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 6 - stack range: 0x000077dd44bfd000-0x000077dd453fd000, size: 8192 kB
0x000077dd453fb7b0 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 7 - stack range: 0x000077dd5d5fd000-0x000077dd5ddfd000, size: 8192 kB
0x000077dd5ddfbbe0 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd5ddfbbe8 0x000077dd47e7a800 !+0x0
thread: 8 - stack range: 0x000077dd35ffd000-0x000077dd367fd000, size: 8192 kB
0x000077dd367fb960 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd367fb968 0x000077dd30000f30 !+0x0
thread: 9 - stack range: 0x000077dd17800000-0x000077dd1808a000, size: 8744 kB
0x000077dd17ffec20 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 10 - stack range: 0x000077dd36fff000-0x000077dd377ff000, size: 8192 kB
0x000077dd377fdc20 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 11 - stack range: 0x000077dd5cdfc000-0x000077dd5d5fc000, size: 8192 kB
0x000077dd5d5fa988 0x00000000011a8dc4 node!v8::internal::HeapObject::SizeFromMap(v8::internal::Map) const+0x4
0x000077dd5d5fa990 0x0000000000fe55dd node!v8::internal::Sweeper::RawSweep(v8::internal::Page, v8::internal::Sweeper::FreeListRebuildingMode, v8::internal::FreeSpaceTreatmentMode, v8::internal::Sweeper::SweepingMode, v8::base::LockGuard<v8::base::Mutex, (v8::base::NullBehavior)0> const&) [clone .constprop.177]+0xc1d
0x000077dd5d5fab90 0x0000000000fe7462 node!v8::internal::Sweeper::ParallelSweepPage(v8::internal::Page, v8::internal::AllocationSpace, v8::internal::Sweeper::SweepingMode) [clone .constprop.176]+0x92
0x000077dd5d5fabe0 0x0000000000fe7f49 node!v8::internal::Sweeper::SweeperJob::Run(v8::JobDelegate)+0x2b9
0x000077dd5d5faca0 0x0000000001aeec34 node!v8::platform::DefaultJobWorker::Run()+0x84
0x000077dd5d5facf0 0x0000000000c01625 node!node::(anonymous namespace)::PlatformWorkerThread(void)+0x195
0x000077dd5d5fad60 0x000077dd5f69f802 libc.so.6!+0x77802
0x000077dd5d5fad68 0x0000000000fe55dd node!v8::internal::Sweeper::RawSweep(v8::internal::Page, v8::internal::Sweeper::FreeListRebuildingMode, v8::internal::FreeSpaceTreatmentMode, v8::internal::Sweeper::SweepingMode, v8::base::LockGuard<v8::base::Mutex, (v8::base::NullBehavior)0> const&) [clone .constprop.177]+0xc1d
(further unwinding failed, error: -3)
thread: 12 - stack range: 0x000077dd5ddfe000-0x000077dd5e5fe000, size: 8192 kB
0x000077dd5e5fc990 0x0000000000fe5614 node!v8::internal::Sweeper::RawSweep(v8::internal::Page, v8::internal::Sweeper::FreeListRebuildingMode, v8::internal::FreeSpaceTreatmentMode, v8::internal::Sweeper::SweepingMode, v8::base::LockGuard<v8::base::Mutex, (v8::base::NullBehavior)0> const&) [clone .constprop.177]+0xc54
0x000077dd5e5fcb90 0x0000000000fe7462 node!v8::internal::Sweeper::ParallelSweepPage(v8::internal::Page, v8::internal::AllocationSpace, v8::internal::Sweeper::SweepingMode) [clone .constprop.176]+0x92
0x000077dd5e5fcbe0 0x0000000000fe7f49 node!v8::internal::Sweeper::SweeperJob::Run(v8::JobDelegate)+0x2b9
0x000077dd5e5fcca0 0x0000000001aeec34 node!v8::platform::DefaultJobWorker::Run()+0x84
0x000077dd5e5fccf0 0x0000000000c01625 node!node::(anonymous namespace)::PlatformWorkerThread(void)+0x195
0x000077dd5e5fcd60 0x000077dd5f69f802 libc.so.6!+0x77802
(further unwinding failed, error: -3)
thread: 13 - stack range: 0x000077dd347fa000-0x000077dd34ffa000, size: 8192 kB
0x000077dd34ff8c20 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 14 - stack range: 0x000077dd16fff000-0x000077dd177ff000, size: 8192 kB
0x000077dd177fdc20 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 15 - stack range: 0x000077dd45bff000-0x000077dd463ff000, size: 8192 kB
0x000077dd463fd9b0 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd463fd9b8 0x000077dd463fda00 !+0x0
thread: 16 - stack range: 0x000077dd453fe000-0x000077dd45bfe000, size: 8192 kB
0x000077dd45bfc8e0 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd45bfc8e8 0x000077dd240272c0 !+0x0
thread: 17 - stack range: 0x000077dd37800000-0x000077dd38021000, size: 8324 kB
0x000077dd37ffe7b0 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd37ffe7b8 0x000077dd37ffe870 !+0x0
thread: 18 - stack range: 0x000077dd357fc000-0x000077dd35ffc000, size: 8192 kB
0x000077dd35ffa7b0 0x000077dd5f69c39a libc.so.6!+0x7439a
(further unwinding failed, error: -3)
thread: 19 - stack range: 0x000077dd34ffb000-0x000077dd357fb000, size: 8192 kB
0x000077dd357f9980 0x000077dd5f69c39a libc.so.6!+0x7439a
0x000077dd357f9988 0x00000000053a8118 !+0x0
thread: 20 - stack range: 0x000077dd16bfe000-0x000077dd16ffe000, size: 4096 kB
0x000077dd16ff95e0 0x000077dd5f74e84e libc.so.6!+0x12684e
0x000077dd16ff95f0 0x0000000001671c7e node!uv_run+0x14e
0x000077dd16ffc780 0x0000000000ad1a8d node!node::SpinEventLoop(node::Environment )+0x14d
0x000077dd16ffc830 0x0000000000c648da node!node::worker::Worker::Run()+0x11da
0x000077dd16ffcd20 0x0000000000c64eb8 node!node::worker::Worker::StartThread(v8::FunctionCallbackInfo const&)::{lambda(void)#1}::_FUN(void)+0x38
0x000077dd16ffcd60 0x000077dd5f69f802 libc.so.6!+0x77802
(further unwinding failed, error: -3)
mapped files: 0000000000400000-0000000005104000 0 /home/nodejs/.nvm/versions/node/v18.19.0/bin/node (GNU Build-Id: 5699991a211c9ef19f6b34e6b0417929d3a6468f) 0000000005304000-0000000005307000 4d04 /home/nodejs/.nvm/versions/node/v18.19.0/bin/node (GNU Build-Id: 5699991a211c9ef19f6b34e6b0417929d3a6468f) 0000000005307000-0000000005322000 4d07 /home/nodejs/.nvm/versions/node/v18.19.0/bin/node (GNU Build-Id: 5699991a211c9ef19f6b34e6b0417929d3a6468f) 000077dd46c00000-000077dd46cfa000 0 /opt/dynatrace/oneagent/agent/bin/1.279.166.20231201-090952/linux-x86-64/oneagentnode_108.node (1.279.166.20231201-090952) 000077dd46cfa000-000077dd47933000 fa /opt/dynatrace/oneagent/agent/bin/1.279.166.20231201-090952/linux-x86-64/oneagentnode_108.node (1.279.166.20231201-090952) 000077dd47933000-000077dd47cdf000 d33 /opt/dynatrace/oneagent/agent/bin/1.279.166.20231201-090952/linux-x86-64/oneagentnode_108.node (1.279.166.20231201-090952) 000077dd47cdf000-000077dd47ce0000 10df /opt/dynatrace/oneagent/agent/bin/1.279.166.20231201-090952/linux-x86-64/oneagentnode_108.node (1.279.166.20231201-090952) 000077dd47ce0000-000077dd47d71000 10df /opt/dynatrace/oneagent/agent/bin/1.279.166.20231201-090952/linux-x86-64/oneagentnode_108.node (1.279.166.20231201-090952) 000077dd47d71000-000077dd47d79000 1170 /opt/dynatrace/oneagent/agent/bin/1.279.166.20231201-090952/linux-x86-64/oneagentnode_108.node (1.279.166.20231201-090952) 000077dd5f600000-000077dd5f628000 0 /usr/lib64/libc.so.6 (GNU Build-Id: 65a29d0b1cd88c15b44cfda562dd904e2cf35435) 000077dd5f628000-000077dd5f79d000 28 /usr/lib64/libc.so.6 (GNU Build-Id: 65a29d0b1cd88c15b44cfda562dd904e2cf35435) 000077dd5f79d000-000077dd5f7f5000 19d /usr/lib64/libc.so.6 (GNU Build-Id: 65a29d0b1cd88c15b44cfda562dd904e2cf35435) 000077dd5f7f5000-000077dd5f7f6000 1f5 /usr/lib64/libc.so.6 (GNU Build-Id: 65a29d0b1cd88c15b44cfda562dd904e2cf35435) 000077dd5f7f6000-000077dd5f7fa000 1f5 /usr/lib64/libc.so.6 (GNU Build-Id: 65a29d0b1cd88c15b44cfda562dd904e2cf35435) 000077dd5f7fa000-000077dd5f7fc000 1f9 /usr/lib64/libc.so.6 (GNU Build-Id: 65a29d0b1cd88c15b44cfda562dd904e2cf35435) 000077dd5fa00000-000077dd5fa99000 0 /usr/lib64/libstdc++.so.6.0.29 (GNU Build-Id: 5657ddf16af349072a8656dd9e15cd4f7255d39d) 000077dd5fa99000-000077dd5fba3000 99 /usr/lib64/libstdc++.so.6.0.29 (GNU Build-Id: 5657ddf16af349072a8656dd9e15cd4f7255d39d) 000077dd5fba3000-000077dd5fc15000 1a3 /usr/lib64/libstdc++.so.6.0.29 (GNU Build-Id: 5657ddf16af349072a8656dd9e15cd4f7255d39d) 000077dd5fc15000-000077dd5fc16000 215 /usr/lib64/libstdc++.so.6.0.29 (GNU Build-Id: 5657ddf16af349072a8656dd9e15cd4f7255d39d) 000077dd5fc16000-000077dd5fc23000 215 /usr/lib64/libstdc++.so.6.0.29 (GNU Build-Id: 5657ddf16af349072a8656dd9e15cd4f7255d39d) 000077dd5fc23000-000077dd5fc24000 222 /usr/lib64/libstdc++.so.6.0.29 (GNU Build-Id: 5657ddf16af349072a8656dd9e15cd4f7255d39d) 000077dd5fe00000-000077dd5fe08000 0 /usr/lib64/liboneagentproc.so (1.279.166.20231201-090952) 000077dd5fe08000-000077dd5fea3000 8 /usr/lib64/liboneagentproc.so (1.279.166.20231201-090952) 000077dd5fea3000-000077dd5fede000 a3 /usr/lib64/liboneagentproc.so (1.279.166.20231201-090952) 000077dd5fede000-000077dd5fedf000 de /usr/lib64/liboneagentproc.so (1.279.166.20231201-090952) 000077dd5fedf000-000077dd5fee3000 de /usr/lib64/liboneagentproc.so (1.279.166.20231201-090952) 000077dd5fee3000-000077dd5fee4000 e2 /usr/lib64/liboneagentproc.so (1.279.166.20231201-090952) 000077dd6005a000-000077dd6005f000 0 /dev/zero (deleted) (n/a) 000077dd6005f000-000077dd60064000 0 /dev/zero (deleted) (n/a) 000077dd60064000-000077dd60065000 0 /usr/lib64/librt.so.1 (GNU Build-Id: 69e09be09c884e2a502054c8775e831d0efd6ae6) 000077dd60065000-000077dd60066000 1 /usr/lib64/librt.so.1 (GNU Build-Id: 69e09be09c884e2a502054c8775e831d0efd6ae6) 000077dd60066000-000077dd60067000 2 /usr/lib64/librt.so.1 (GNU Build-Id: 69e09be09c884e2a502054c8775e831d0efd6ae6) 000077dd60067000-000077dd60068000 2 /usr/lib64/librt.so.1 (GNU Build-Id: 69e09be09c884e2a502054c8775e831d0efd6ae6) 000077dd60068000-000077dd60069000 3 /usr/lib64/librt.so.1 (GNU Build-Id: 69e09be09c884e2a502054c8775e831d0efd6ae6) 000077dd60077000-000077dd60078000 0 /usr/lib64/libpthread.so.0 (GNU Build-Id: 224429e5c0fefcd1ab356a39da51e5aa6a7cb9b5) 000077dd60078000-000077dd60079000 1 /usr/lib64/libpthread.so.0 (GNU Build-Id: 224429e5c0fefcd1ab356a39da51e5aa6a7cb9b5) 000077dd60079000-000077dd6007a000 2 /usr/lib64/libpthread.so.0 (GNU Build-Id: 224429e5c0fefcd1ab356a39da51e5aa6a7cb9b5) 000077dd6007a000-000077dd6007b000 2 /usr/lib64/libpthread.so.0 (GNU Build-Id: 224429e5c0fefcd1ab356a39da51e5aa6a7cb9b5) 000077dd6007b000-000077dd6007c000 3 /usr/lib64/libpthread.so.0 (GNU Build-Id: 224429e5c0fefcd1ab356a39da51e5aa6a7cb9b5) 000077dd6007c000-000077dd6007f000 0 /usr/lib64/libgcc_s-11-20230605.so.1 (GNU Build-Id: b167aa2bd52b832128de92447c280e90420c9110) 000077dd6007f000-000077dd60091000 3 /usr/lib64/libgcc_s-11-20230605.so.1 (GNU Build-Id: b167aa2bd52b832128de92447c280e90420c9110) 000077dd60091000-000077dd60094000 15 /usr/lib64/libgcc_s-11-20230605.so.1 (GNU Build-Id: b167aa2bd52b832128de92447c280e90420c9110) 000077dd60094000-000077dd60095000 18 /usr/lib64/libgcc_s-11-20230605.so.1 (GNU Build-Id: b167aa2bd52b832128de92447c280e90420c9110) 000077dd60095000-000077dd60096000 18 /usr/lib64/libgcc_s-11-20230605.so.1 (GNU Build-Id: b167aa2bd52b832128de92447c280e90420c9110) 000077dd60096000-000077dd60097000 19 /usr/lib64/libgcc_s-11-20230605.so.1 (GNU Build-Id: b167aa2bd52b832128de92447c280e90420c9110) 000077dd60097000-000077dd600a4000 0 /usr/lib64/libm.so.6 (GNU Build-Id: cd380e0ffadfdf02b7c52962c32dd5c02929ec4c) 000077dd600a4000-000077dd60114000 d /usr/lib64/libm.so.6 (GNU Build-Id: cd380e0ffadfdf02b7c52962c32dd5c02929ec4c) 000077dd60114000-000077dd60170000 7d /usr/lib64/libm.so.6 (GNU Build-Id: cd380e0ffadfdf02b7c52962c32dd5c02929ec4c) 000077dd60170000-000077dd60171000 d8 /usr/lib64/libm.so.6 (GNU Build-Id: cd380e0ffadfdf02b7c52962c32dd5c02929ec4c) 000077dd60171000-000077dd60172000 d9 /usr/lib64/libm.so.6 (GNU Build-Id: cd380e0ffadfdf02b7c52962c32dd5c02929ec4c) 000077dd60172000-000077dd60173000 0 /usr/lib64/libdl.so.2 (GNU Build-Id: f2c37044b0cf5d2170e60fa4f0b92c5127dfddff) 000077dd60173000-000077dd60174000 1 /usr/lib64/libdl.so.2 (GNU Build-Id: f2c37044b0cf5d2170e60fa4f0b92c5127dfddff) 000077dd60174000-000077dd60175000 2 /usr/lib64/libdl.so.2 (GNU Build-Id: f2c37044b0cf5d2170e60fa4f0b92c5127dfddff) 000077dd60175000-000077dd60176000 2 /usr/lib64/libdl.so.2 (GNU Build-Id: f2c37044b0cf5d2170e60fa4f0b92c5127dfddff) 000077dd60176000-000077dd60177000 3 /usr/lib64/libdl.so.2 (GNU Build-Id: f2c37044b0cf5d2170e60fa4f0b92c5127dfddff) 000077dd60177000-000077dd60178000 0 /dev/zero (deleted) (n/a) 000077dd60178000-000077dd60179000 0 /dev/zero (deleted) (n/a) 000077dd60179000-000077dd6017a000 0 /dev/zero (deleted) (n/a)