Date: Tue, 17 Mar 2009 03:09:09 +0300 From: Anonymous <swell.k@gmail.com> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-current@freebsd.org, dchagin@freebsd.org Subject: Re: lang/sbcl consumes all available memory and dies Message-ID: <868wn5qaca.fsf@gmail.com> In-Reply-To: <20090316215205.GS41617@deviant.kiev.zoral.com.ua> (Kostik Belousov's message of "Mon, 16 Mar 2009 23:52:05 %2B0200") References: <864oxtuzct.fsf@gmail.com> <20090316194541.GO41617@deviant.kiev.zoral.com.ua> <86ljr5p3f0.fsf@gmail.com> <20090316215205.GS41617@deviant.kiev.zoral.com.ua>
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Kostik Belousov <kostikbel@gmail.com> writes: > On Tue, Mar 17, 2009 at 12:24:03AM +0300, Anonymous wrote: >> Kostik Belousov <kostikbel@gmail.com> writes: >> >> > On Mon, Mar 16, 2009 at 08:55:14PM +0300, Anonymous wrote: >> >> I noticed that after commit r189771 (ELF: .note.ABI-tag) sbcl >> >> starts to eat all memory until it dies from bus error never reaching >> >> REPL. The process is unkillable, too. >> >> >> >> $ sbcl >> >> This is SBCL 1.0.25, an implementation of ANSI Common Lisp. >> >> More information about SBCL is available at <http://www.sbcl.org/>. >> >> >> >> SBCL is free software, provided as is, with absolutely no warranty. >> >> It is mostly in the public domain; some portions are provided under >> >> BSD-style licenses. See the CREDITS and COPYING files in the >> >> distribution for more information. >> >> load: 0.06 cmd: sbcl 1926 [running] 0.01u 0.44s 3% 189432k >> >> load: 0.06 cmd: sbcl 1926 [tx->tx_quiesce_done_cv)] 0.01u 0.72s 5% 367124k >> >> load: 0.78 cmd: sbcl 1926 [running] 0.01u 2.91s 14% 1763028k >> >> load: 0.72 cmd: sbcl 1926 [tx->tx_quiesce_done_cv)] 0.01u 3.65s 14% 2237272k >> >> load: 0.74 cmd: sbcl 1926 [*vm page queue mutex] 0.01u 5.78s 9% 3482892k >> >> zsh: bus error (core dumped) sbcl >> >> >> >> This is amd64, r189876M, zfs, 4g mem, 4g swap, sbcl 1.0.17, sbcl-1.0.25, >> >> 1.0.26.3. I can reproduce it under qemu with clean environment as well. >> >> >> >> Can somebody confirm it on i386? Just run `sbcl' and exit from REPL by >> >> either `^D' or `(quit)'. >> >> >> >> The workaround is to reverse-apply diff from r189771. >> > >> > I think the D-state is due to quite large vm address space of the lisp, >> > that takes a long time to dump. >> > For the start, can you confirm that setting sysctl >> > machdep.prot_fault_translation to 2 solves your problem ? >> >> Yep, machdep.prot_fault_translation=2 solves it on my main amd64 box and >> in qemu-amd64. Anything else? > > Please, try this patch. > > diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c > index f2bdcf5..5604ea5 100644 > --- a/sys/kern/imgact_elf.c > +++ b/sys/kern/imgact_elf.c > @@ -1330,14 +1330,14 @@ __elfN(check_note)(struct image_params *imgp, Elf_Brandnote *checknote, > int32_t *osrel) > { > const Elf_Note *note, *note_end; > - const Elf32_Phdr *phdr, *pnote; > - const Elf32_Ehdr *hdr; > + const Elf_Phdr *phdr, *pnote; > + const Elf_Ehdr *hdr; > const char *note_name; > int i; > > pnote = NULL; > - hdr = (const Elf32_Ehdr *)imgp->image_header; > - phdr = (const Elf32_Phdr *)(imgp->image_header + hdr->e_phoff); > + hdr = (const Elf_Ehdr *)imgp->image_header; > + phdr = (const Elf_Phdr *)(imgp->image_header + hdr->e_phoff); > > for (i = 0; i < hdr->e_phnum; i++) { > if (phdr[i].p_type == PT_NOTE) { Double-checked on more recent revision (r189900) under qemu-amd64 with/without the patch. The problem disappears. Don't know about i386, though.
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