https://bugs.kde.org/show_bug.cgi?id=495524
Janne Grunau <janne-...@jannau.net> changed:
What |Removed |Added
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CC| |janne-...@jannau.net
--- Comment #1 from Janne Grunau <janne-...@jannau.net> ---
wishlist doesn't seem the appropriate priority as this avoids crashes on all or
many non-x86 systems. That is systems without "physical id" in `/proc/cpuinfo`.
See below for a single CPU core entry from a Apple M1 Ultra:
> processor : 0
> BogoMIPS : 48.00
> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp
> asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 asimddp sha512 asimdfhm
> dit uscat ilrcpc flagm ssbs sb paca pacg dcpodp flagm2 frint
> CPU implementer : 0x61
> CPU architecture: 8
> CPU variant : 0x2
> CPU part : 0x028
> CPU revision : 0
It prevents a nullptr dereference in `LinuxCpuPluginPrivate::update()` when the
constructor skipped all CPUs.
Backtrace:
> #0 __pthread_kill_implementation (threadid=281470396449024,
> signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
> #1 0x0000fffeee2e8850 [PAC] in __pthread_kill_internal (threadid=<optimized
> out>, signo=11) at pthread_kill.c:78
> #2 0x0000fffeee295a00 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
> #3 0x0000fffeef062adc [PAC] in KCrash::defaultCrashHandler (sig=11) at
> /usr/src/debug/kf6-kcrash-6.7.0-1.fc40.aarch64/src/kcrash.cpp:596
> #4 0x0000fffeef104840 [PAC] in <signal handler called> ()
> #5 0x0000fffeef00b820 in KSysGuard::SensorObject::isSubscribed
> (this=this@entry=0x0) at /usr/include/c++/14/bits/unique_ptr.h:193
> #6 0x0000fffee921b5bc [PAC] in LinuxCpuObject::update (this=0x0,
> system=341648, user=427329, wait=15886, idle=78750572) at
> /usr/src/debug/ksystemstats-6.2.1-1.fc40.aarch64/plugins/cpu/linuxcpu.cpp:63
> #7 LinuxCpuPluginPrivate::update (this=0xaaab5a9eaf50) at
> /usr/src/debug/ksystemstats-6.2.1-1.fc40.aarch64/plugins/cpu/linuxcpuplugin.cpp:163
> #8 0x0000aaab4d535f80 [PAC] in Daemon::sendFrame() ()
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