[gentoo-hardened] Re: hardened glibc-2.5 issues

[Adam Lantos]

Tomorrow I try to compile another glibc-2.5-hardened with nptl support
completely disabled, because mysql seems to accept linuxthreads'
LD_ASSUME_KERNEL env variable.

hardened-glibc-2.5-r3 *not*being*nptl-safe*? anyone experienced with
that problem or it is just my config :) glibc-2.5 with and without
hardened produced the same bogus behaviour. Strange, because I used
glibc-2.4 (not hardened) with nptlonly long-long time without any
regrets.

cheers,
 adam


On 6/16/07, Adam Lantos <hege@××××××.org> wrote:
> hi
>
> I have recently upgraded one of my gentoo systems to glibc-2.5-r3 (USE
> = hardened nptl nptlonly), and since then random issues emerged from
> nowhere...
>
> Openldap's slapd and mysqld are unable to run stable, after daemon
> parent process forks the worker processes, they get killed, and master
> daemon exits.
>
> I remerged glibc with USE="-hardened -nptlonly", but still no success,
> my threaded processes die randomly.
>
> Any ideas? Copied the strace output to the bottom of this mail
>
>
> yours,
>  adam
>
>
> strace of slapd:
>
> child_stack=0x37a7f4c4,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|
> CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
> parent_tidptr=0x37a7fbd8,
> {entry_number:6, base_addr:0x37a7fb90, limit:1048575, seg_32bit:1, contents:0,
> read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1},
> child_tidptr=0x37a7fbd8) = 11694
> [pid 19145] futex(0x37a7fbd8, FUTEX_WAIT, 11694, NULL <unfinished ...>
> [pid 11694] sendto(933755872, ptrace: umoven: Input/output error
> 0xc, 1277361828, 0, ptrace: umoven: Input/output error
> {...}, 933754056) = 0
> [pid 11694] epoll_ctl(6, EPOLL_CTL_ADD, 4, {EPOLLIN, {u32=293003816,
> u64=293003816}}) = 0
> [pid 19145] <... futex resumed> )       = -1 EINTR (Interrupted system call)
> [pid 11694] +++ killed by SIGKILL +++
> PANIC: handle_group_exit: 11694 leader 19145
> Process 11694 detached
> +++ killed by SIGKILL +++
> Process 19145 detached
>
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