LLD segfaults while linking drivers/scsi/megaraid/megaraid_mm.ko #1649

tpgxyz · 2022-06-07T07:36:15Z

Hello team,

i'm building kernel 5.18.2 with LLVM-14.0.4 and got this issue:

  LD [M]  drivers/scsi/megaraid/megaraid_mm.ko
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
  LD [M]  drivers/scsi/megaraid/megaraid_sas.ko
  LD [M]  drivers/scsi/mpi3mr/mpi3mr.ko
  BTF [M] megaraid_mm
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ld.lld --icf=none --no-gc-sections -r -EL -maarch64elf -z norelro --thinlto-cache-dir=.thinlto-cache -mllvm -import-instr-limit=5 --build-id=sha1 -T scripts/module.lds -o drivers/scsi/megaraid/megaraid_mbox.ko drivers/scsi/megaraid/megaraid_mbox.prelink.o drivers/scsi/megaraid/megaraid_mbox.mod.o
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ld.lld --icf=none --no-gc-sections -r -EL -maarch64elf -z norelro --thinlto-cache-dir=.thinlto-cache -mllvm -import-instr-limit=5 --build-id=sha1 -T scripts/module.lds -o drivers/scsi/mpi3mr/mpi3mr.ko drivers/scsi/mpi3mr/mpi3mr.prelink.o drivers/scsi/mpi3mr/mpi3mr.mod.o
  LD [M]  drivers/scsi/mpt3sas/mpt3sas.ko
  LD [M]  drivers/scsi/mvsas/mvsas.ko
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ld.lld --icf=none --no-gc-sections -r -EL -maarch64elf -z norelro --thinlto-cache-dir=.thinlto-cache -mllvm -import-instr-limit=5 --build-id=sha1 -T scripts/module.lds -o drivers/scsi/mvsas/mvsas.ko drivers/scsi/mvsas/mvsas.prelink.o drivers/scsi/mvsas/mvsas.mod.o
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ld.lld --icf=none --no-gc-sections -r -EL -maarch64elf -z norelro --thinlto-cache-dir=.thinlto-cache -mllvm -import-instr-limit=5 --build-id=sha1 -T scripts/module.lds -o drivers/scsi/megaraid/megaraid_sas.ko drivers/scsi/megaraid/megaraid_sas.prelink.o drivers/scsi/megaraid/megaraid_sas.mod.o
  #0 0x0000ffffa9a64998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (#0/usr/lib64/libLLVM-14.so +0x3a649980x0000ffff836b4998) 
llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib64/libLLVM-14.so+0x3a64998)
 #1 0x0000ffffa9a63470 llvm::sys::RunSignalHandlers()  (#1/usr/lib64/libLLVM-14.so +0x3a634700x0000ffff836b3470) 
llvm::sys::RunSignalHandlers()  (#2/usr/lib64/libLLVM-14.so +0x0000ffffa9a641700x3a63470 (/usr/lib64/libLLVM-14.so+0x3a64170)
 #3 0x0000ffffae1717bc (linux-vdso.so.1+0x7bc))
  #4#2  0x0000000000639d6c0x0000ffff836b4170  ((/usr/bin/lld/usr/lib64/libLLVM-14.so++0x639d6c0x3a64170))
  #5#3  0x0000000000637cc80x0000ffff87dbe7bc  void lld::elf::writeResult<llvm::object::ELFType<(llvm::support::endianness)1, true> >()( linux-vdso.so.1(+/usr/bin/lld0x7bc+)0x637cc8
)
 #4  #60x0000000000639d6c  0x0000000000480b7c( /usr/bin/lldlld::elf::LinkerDriver::link(llvm::opt::InputArgList&)+ 0x639d6c()/usr/bin/lld
+0x480b7c )#5
 0x0000000000637cc8  #7void lld::elf::writeResult<llvm::object::ELFType<(llvm::support::endianness)1, true> >()  0x0000000000476914( /usr/bin/lldlld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>)+ 0x637cc8()/usr/bin/lld
+0x476914 #6 )0x0000000000480b7c
  lld::elf::LinkerDriver::link(llvm::opt::InputArgList&)#8 ( /usr/bin/lld0x000000000047412c+ 0x480b7clld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool)) 
( /usr/bin/lld#7+ 0x47412c0x0000000000476914) 
lld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>)  (#9/usr/bin/lld +0x00000000003af8d80x476914 )(
/usr/bin/lld+ 0x3af8d8#8) 
0x000000000047412c #10lld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool)  (0x00000000003b00b0/usr/bin/lld +0x47412cmain) 
(/usr/bin/lld +#90x3b00b0 )0x00000000003af8d8
 (#11/usr/bin/lld +0x0000ffffa5c0b2000x3af8d8 )(
/lib64/libc.so.6+#100x2b200 )0x00000000003b00b0
 main#12  (0x0000ffffa5c0b2d8/usr/bin/lld +__libc_start_main0x3b00b0 )(
/lib64/libc.so.6+#110x2b2d8 )0x0000ffff7f85b200
 (#13/lib64/libc.so.6 +0x00000000003ad1300x2b200 )_start
 (/usr/bin/lld#12+ 0x3ad1300x0000ffff7f85b2d8) 
__libc_start_main (/lib64/libc.so.6+0x2b2d8)
#13 0x00000000003ad130 _start (/usr/bin/lld+0x3ad130)
 #0 0x0000ffffac3a4998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib64/libLLVM-14.so+0x3a64998)
 #1 0x0000ffffac3a3470 llvm::sys::RunSignalHandlers() (/usr/lib64/libLLVM-14.so+0x3a63470)
 #2 0x0000ffffac3a4170 (/usr/lib64/libLLVM-14.so+0x3a64170)
 #3 0x0000ffffb0ab27bc (linux-vdso.so.1+0x7bc)
 #4 0x00000000004fcbc4 void lld::elf::InputSection::copyRelocations<llvm::object::ELFType<(llvm::support::endianness)1, true>, llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1, true>, true> >(unsigned char*, llvm::ArrayRef<llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1, true>, true> >)  (/usr/bin/lld#0+ 0x4fcbc4)0x0000ffff93934998
 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)  (#5/usr/lib64/libLLVM-14.so +0x000000000053c3840x3a64998 )(
/usr/bin/lld+ 0x53c384#1) 
0x0000ffff93933470  llvm::sys::RunSignalHandlers()#6  (0x0000ffffac2fe33c/usr/lib64/libLLVM-14.so +(0x3a63470/usr/lib64/libLLVM-14.so)+
0x39be33c) 
#2  #70x0000ffff93934170  0x0000ffffac2fbf20( /usr/lib64/libLLVM-14.so(+/usr/lib64/libLLVM-14.so0x3a64170+)0x39bbf20
)
 #3  #80x0000ffff980427bc  0x0000ffffac2fd804( linux-vdso.so.1(+/usr/lib64/libLLVM-14.so0x7bc+)0x39bd804
) 
#4  #90x00000000004fcbc4  0x0000ffffa87de95cvoid lld::elf::InputSection::copyRelocations<llvm::object::ELFType<(llvm::support::endianness)1, true>, llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1, true>, true> >(unsigned char*, llvm::ArrayRef<llvm::object::Elf_Rel_Impl<llvm::object::ELFType<(llvm::support::endianness)1, true>, true> >)  ((/lib64/libstdc++.so.6+/usr/bin/lld0xce95c+)0x4fcbc4
)
#10  0x0000ffffa85a215c#5  (0x000000000053c384/lib64/libc.so.6 +(0x8215c/usr/bin/lld)+
0x53c384)#11
  0x0000ffffa860a49c#6  (0x0000ffff9388e33c/lib64/libc.so.6 +(0xea49c/usr/lib64/libLLVM-14.so)+
0x39be33c)
 #7 0x0000ffff9388bf20 (/usr/lib64/libLLVM-14.so+0x39bbf20)
 #8 0x0000ffff9388d804 (/usr/lib64/libLLVM-14.so+0x39bd804)
 #9 0x0000ffff8fd6e95c (/lib64/libstdc++.so.6+0xce95c)
#10 0x0000ffff8fb3215c (/lib64/libc.so.6+0x8215c)
#11 0x0000ffff8fb9a49c (/lib64/libc.so.6+0xea49c)
 #0 0x0000ffff95634998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib64/libLLVM-14.so+0x3a64998)
 #1 0x0000ffff95633470 llvm::sys::RunSignalHandlers() (/usr/lib64/libLLVM-14.so+0x3a63470)
 #2 0x0000ffff95634170 (/usr/lib64/libLLVM-14.so+0x3a64170)
 #3 0x0000ffff99d3f7bc (linux-vdso.so.1+0x7bc)
 #4 0x0000000000639d6c (/usr/bin/lld+0x639d6c)
 #5 0x0000000000637cc8 void lld::elf::writeResult<llvm::object::ELFType<(llvm::support::endianness)1, true> >() (/usr/bin/lld+0x637cc8)
 #6 0x0000000000480b7c lld::elf::LinkerDriver::link(llvm::opt::InputArgList&) (/usr/bin/lld+0x480b7c)
 #7 0x0000000000476914 lld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>) (/usr/bin/lld+0x476914)
 #8 0x000000000047412c lld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool) (/usr/bin/lld+0x47412c)
 #9 0x00000000003af8d8 (/usr/bin/lld+0x3af8d8)
#10 0x00000000003b00b0 main (/usr/bin/lld+0x3b00b0)
#11 0x0000ffff917db200 (/lib64/libc.so.6+0x2b200)
#12 0x0000ffff917db2d8 __libc_start_main (/lib64/libc.so.6+0x2b2d8)
#13 0x00000000003ad130 _start (/usr/bin/lld+0x3ad130)
 #0 0x0000ffff925b4998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib64/libLLVM-14.so+0x3a64998)
 #1 0x0000ffff925b3470 llvm::sys::RunSignalHandlers() (/usr/lib64/libLLVM-14.so+0x3a63470)
 #2 0x0000ffff925b4170 (/usr/lib64/libLLVM-14.so+0x3a64170)
 #3 0x0000ffff96cc27bc (linux-vdso.so.1+0x7bc)
 #4 0x0000000000639d6c (/usr/bin/lld+0x639d6c)
 #5 0x0000000000637cc8 void lld::elf::writeResult<llvm::object::ELFType<(llvm::support::endianness)1, true> >() (/usr/bin/lld+0x637cc8)
 #6 0x0000000000480b7c lld::elf::LinkerDriver::link(llvm::opt::InputArgList&) (/usr/bin/lld+0x480b7c)
 #7 0x0000000000476914 lld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>) (/usr/bin/lld+0x476914)
 #8 0x000000000047412c lld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool) (/usr/bin/lld+0x47412c)
 #9 0x00000000003af8d8 (/usr/bin/lld+0x3af8d8)
#10 0x00000000003b00b0 main (/usr/bin/lld+0x3b00b0)
#11 0x0000ffff8e75b200 (/lib64/libc.so.6+0x2b200)
#12 0x0000ffff8e75b2d8 __libc_start_main (/lib64/libc.so.6+0x2b2d8)
#13 0x00000000003ad130 _start (/usr/bin/lld+0x3ad130)
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ld.lld --icf=none --no-gc-sections -r -EL -maarch64elf -z norelro --thinlto-cache-dir=.thinlto-cache -mllvm -import-instr-limit=5 --build-id=sha1 -T scripts/module.lds -o drivers/scsi/lpfc/lpfc.ko drivers/scsi/lpfc/lpfc.prelink.o drivers/scsi/lpfc/lpfc.mod.o
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ld.lld --icf=none --no-gc-sections -r -EL -maarch64elf -z norelro --thinlto-cache-dir=.thinlto-cache -mllvm -import-instr-limit=5 --build-id=sha1 -T scripts/module.lds -o drivers/scsi/mpt3sas/mpt3sas.ko drivers/scsi/mpt3sas/mpt3sas.prelink.o drivers/scsi/mpt3sas/mpt3sas.mod.o
 #0 0x0000ffff9ba44998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib64/libLLVM-14.so+0x3a64998)
 #1 0x0000ffff9ba43470 llvm::sys::RunSignalHandlers() (/usr/lib64/libLLVM-14.so+0x3a63470)
 #2 0x0000ffff9ba44170 (/usr/lib64/libLLVM-14.so+0x3a64170)
 #3 0x0000ffffa01517bc (linux-vdso.so.1+0x7bc)
 #4 0x0000000000639d6c (/usr/bin/lld+0x639d6c)
 #5 0x0000000000637cc8 void lld::elf::writeResult<llvm::object::ELFType<(llvm::support::endianness)1, true> >() (/usr/bin/lld+0x637cc8)
 #6 0x0000000000480b7c lld::elf::LinkerDriver::link(llvm::opt::InputArgList&) (/usr/bin/lld+0x480b7c)
 #7 0x0000000000476914 lld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>) (/usr/bin/lld+0x476914)
 #8 0x000000000047412c lld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool) (/usr/bin/lld+0x47412c)
 #9 0x00000000003af8d8 (/usr/bin/lld+0x3af8d8)
#10 0x00000000003b00b0 main (/usr/bin/lld+0x3b00b0)
#11 0x0000ffff97beb200 (/lib64/libc.so.6+0x2b200)
#12 0x0000ffff97beb2d8 __libc_start_main (/lib64/libc.so.6+0x2b2d8)
#13 0x00000000003ad130 _start (/usr/bin/lld+0x3ad130)
 #0 0x0000ffffb30b4998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib64/libLLVM-14.so+0x3a64998)
 #1 0x0000ffffb30b3470 llvm::sys::RunSignalHandlers() (/usr/lib64/libLLVM-14.so+0x3a63470)
 #2 0x0000ffffb30b4170 (/usr/lib64/libLLVM-14.so+0x3a64170)
 #3 0x0000ffffb77bf7bc (linux-vdso.so.1+0x7bc)
 #4 0x0000000000639d6c (/usr/bin/lld+0x639d6c)
 #5 0x0000000000637cc8 void lld::elf::writeResult<llvm::object::ELFType<(llvm::support::endianness)1, true> >() (/usr/bin/lld+0x637cc8)
 #6 0x0000000000480b7c lld::elf::LinkerDriver::link(llvm::opt::InputArgList&) (/usr/bin/lld+0x480b7c)
 #7 0x0000000000476914 lld::elf::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>) (/usr/bin/lld+0x476914)
 #8 0x000000000047412c lld::elf::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool) (/usr/bin/lld+0x47412c)
 #9 0x00000000003af8d8 (/usr/bin/lld+0x3af8d8)
#10 0x00000000003b00b0 main (/usr/bin/lld+0x3b00b0)
#11 0x0000ffffaf25b200 (/lib64/libc.so.6+0x2b200)
#12 0x0000ffffaf25b2d8 __libc_start_main (/lib64/libc.so.6+0x2b2d8)
#13 0x00000000003ad130 _start (/usr/bin/lld+0x3ad130)
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/libsas/libsas.ko] Error 135
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/megaraid/megaraid_mbox.ko] Error 135
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/mpi3mr/mpi3mr.ko] Error 135
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/mvsas/mvsas.ko] Error 135
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/megaraid.ko] Error 135
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/megaraid/megaraid_sas.ko] Error 135
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/mpt3sas/mpt3sas.ko] Error 135
make[2]: *** [scripts/Makefile.modfinal:60: drivers/scsi/lpfc/lpfc.ko] Error 135
make[1]: *** [scripts/Makefile.modpost:140: __modpost] Error 2
make: *** [Makefile:1752: modules] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.lerILD (%build)

Full build log can be found here https://file-https://abf.openmandriva.org/build_lists/211222

The text was updated successfully, but these errors were encountered:

nathanchance · 2022-06-07T15:35:43Z

I can't reproduce this with vanilla 14.0.4 and Linux 5.18.2 with your configuration:

$ clang --version | head -1
ClangBuiltLinux clang version 14.0.4 (https://github.com/llvm/llvm-project 29f1039a7285a5c3a9c353d054140bf2556d4c4d)

$ git show -s
commit 25405d5eecac69622a155752bb8b0e1ed5071e36 (HEAD -> linux-5.18.y, tag: v5.18.2, origin/linux-5.18.y)
Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date:   Mon Jun 6 08:49:00 2022 +0200

    Linux 5.18.2

    Link: https://lore.kernel.org/r/20220603173820.731531504@linuxfoundation.org
    Tested-by: Ronald Warsow <rwarsow@gmx.de
    Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
    Tested-by: Ron Economos <re@w6rz.net>
    Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
    Tested-by: Guenter Roeck <linux@roeck-us.net>
    Tested-by: Rudi Heitbaum <rudi@heitbaum.com>
    Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

$ curl -LSso .config https://github.com/OpenMandrivaAssociation/kernel-release/raw/master/aarch64-server-omv-defconfig

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig all
.config:8762:warning: override: reassigning to symbol TYPEC_WUSB3801
.config:12001:warning: symbol value 'm' invalid for CRYPTO_LIB_BLAKE2S_GENERIC
.config:12718:warning: override: reassigning to symbol KFENCE

$ echo $?
0

Is this related to changed ld.lld defaults?

tpgxyz · 2022-06-08T07:40:02Z

@nathanchance Please notice that https://github.com/OpenMandrivaAssociation/kernel-release/raw/master/aarch64-server-omv-defconfig is altered by spec file to push CLANG as a default compiler https://github.com/OpenMandrivaAssociation/kernel-release/blob/5cb5b1a949e9a6b7aae76790bf5d15d346ed3d24/kernel-release.spec#L1144

Second some potential harmful linker options for kernel are disabled https://github.com/OpenMandrivaAssociation/kernel-release/blob/5cb5b1a949e9a6b7aae76790bf5d15d346ed3d24/kernel-release.spec#L1211

nathanchance · 2022-06-08T16:35:23Z

@nathanchance Please notice that https://github.com/OpenMandrivaAssociation/kernel-release/raw/master/aarch64-server-omv-defconfig is altered by spec file to push CLANG as a default compiler https://github.com/OpenMandrivaAssociation/kernel-release/blob/5cb5b1a949e9a6b7aae76790bf5d15d346ed3d24/kernel-release.spec#L1144

Setting/removing the CONFIG_CC and CONFIG_LD variables is unnecessary, as they are not user defined symbols; they come from the tools themselves based on $(CC), $(LD), etc and Kconfig updates them automatically (see init/Kconfig, they are not bool "...", which means they cannot be changed by the user directly).

$ curl -LSso .config https://github.com/OpenMandrivaAssociation/kernel-release/raw/master/aarch64-server-omv-defconfig

$ head -23 .config
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm64 5.16.1 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="aarch64-linux-gnu-gcc (GCC) 11.2.0 20210728 (OpenMandriva)"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110200
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23700
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=130000
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig
.config:8762:warning: override: reassigning to symbol TYPEC_WUSB3801
.config:12001:warning: symbol value 'm' invalid for CRYPTO_LIB_BLAKE2S_GENERIC
.config:12718:warning: override: reassigning to symbol KFENCE

$ head -23 .config
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm64 5.18.2 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="ClangBuiltLinux clang version 14.0.4 (https://github.com/llvm/llvm-project 29f1039a7285a5c3a9c353d054140bf2556d4c4d)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=140004
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=140004
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=140004
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

Even if I apply the other changes, I still see no crash:

$ rg "CONFIG_(CC_|LD_|INIT_STACK_|KCSAN=|SHADOW_CALL_STACK |LTO_|CFI_|RELR=)" .config
5:CONFIG_CC_VERSION_TEXT="ClangBuiltLinux clang version 14.0.4 (https://github.com/llvm/llvm-project 29f1039a7285a5c3a9c353d054140bf2556d4c4d)"
7:CONFIG_CC_IS_CLANG=y
11:CONFIG_LD_VERSION=0
12:CONFIG_LD_IS_LLD=y
14:CONFIG_CC_HAS_ASM_GOTO=y
15:CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
17:CONFIG_CC_HAS_ASM_INLINE=y
18:CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
171:CONFIG_CC_HAS_INT128=y
172:CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
221:CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
222:# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
223:CONFIG_LD_ORPHAN_WARN=y
440:CONFIG_CC_HAVE_SHADOW_CALL_STACK=y
489:CONFIG_CC_HAS_BRANCH_PROT_PAC_RET=y
490:CONFIG_CC_HAS_SIGN_RETURN_ADDRESS=y
509:CONFIG_CC_HAS_BRANCH_PROT_PAC_RET_BTI=y
529:CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y
794:# CONFIG_SHADOW_CALL_STACK is not set
796:CONFIG_LTO_CLANG=y
800:# CONFIG_LTO_NONE is not set
801:# CONFIG_LTO_CLANG_FULL is not set
802:CONFIG_LTO_CLANG_THIN=y
804:CONFIG_CFI_CLANG=y
805:CONFIG_CFI_CLANG_SHADOW=y
806:CONFIG_CFI_PERMISSIVE=y
843:CONFIG_RELR=y
11916:CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
11917:CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
11918:CONFIG_INIT_STACK_NONE=y
11919:# CONFIG_INIT_STACK_ALL_PATTERN is not set
11920:# CONFIG_INIT_STACK_ALL_ZERO is not set
12509:CONFIG_CC_HAS_KASAN_GENERIC=y
12510:CONFIG_CC_HAS_KASAN_SW_TAGS=y
12511:CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
12697:CONFIG_CC_HAS_SANCOV_TRACE_PC=y

Second some potential harmful linker options for kernel are disabled https://github.com/OpenMandrivaAssociation/kernel-release/blob/5cb5b1a949e9a6b7aae76790bf5d15d346ed3d24/kernel-release.spec#L1211

Both of those are default off in upstream but if I remember correctly, you default those to on?

https://github.com/llvm/llvm-project/blob/37028d3ea7fc9fa7e640c91faa9c347808598dd6/lld/ELF/Driver.cpp#L733

https://github.com/llvm/llvm-project/blob/37028d3ea7fc9fa7e640c91faa9c347808598dd6/lld/ELF/Driver.cpp#L1089

nickdesaulniers · 2022-06-08T18:35:38Z

Both of those are default off in upstream but if I remember correctly, you default those to on?

From the dump from lld posted, I see both --icf=none --no-gc-sections in the command line argument.

tpgxyz mentioned this issue Jun 7, 2022

CFI failure target: simpledrm_simple_display_pipe_mode_valid #1647

Closed

nickdesaulniers added [FEATURE] LTO Related to building the kernel with LLVM Link Time Optimization [ARCH] arm64 This bug impacts ARCH=arm64 [TOOL] lld The issue is relevant to LLD linker unreproducible Not or no longer reproducible labels Jun 8, 2022

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LLD segfaults while linking drivers/scsi/megaraid/megaraid_mm.ko #1649

LLD segfaults while linking drivers/scsi/megaraid/megaraid_mm.ko #1649

tpgxyz commented Jun 7, 2022

nathanchance commented Jun 7, 2022

tpgxyz commented Jun 8, 2022

nathanchance commented Jun 8, 2022

nickdesaulniers commented Jun 8, 2022

LLD segfaults while linking drivers/scsi/megaraid/megaraid_mm.ko #1649

LLD segfaults while linking drivers/scsi/megaraid/megaraid_mm.ko #1649

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tpgxyz commented Jun 7, 2022

nathanchance commented Jun 7, 2022

tpgxyz commented Jun 8, 2022

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nickdesaulniers commented Jun 8, 2022