Thanks
Amol
--- vmscan_orig.c Fri Jan 11 13:55:25 2002
+++ vmscan.c Fri Jan 11 13:56:40 2002
@@ -387,6 +387,8 @@
wait_on_page(page);
page_cache_release(page);
spin_lock(&pagemap_lru_lock);
+ list_del(&page.lru);
+ list_add(&page.lru,inactive_list.prev);
}
continue;
}
Ken Brownfield <brownfld@irridia.com> on 01/11/2002 12:34:09 PM
To: Amol Lad/HSS@HSS
cc:
Subject: Re: [PATCH] locked page handling in shrink_cache() : revised
FWIW, on a 2x933 P3, 256MB RAM, running "make -j36 bzImage".
-- Ken. brownfld@irridia.comksymoops 2.4.3 on i686 2.4.18-pre3kb0. Options used -V (default) -k ./ksyms (specified) -l /proc/modules (default) -o /lib/modules/2.4.18-pre3kb0/ (default) -m /boot/System.map-x (specified)
kernel BUG at vmscan.c:387! invalid operand: 0000 CPU: 0 EIP: 0010:[<c013092c>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010282 eax: 0000001c ebx: c13657dc ecx: c02d4568 edx: 00003998 esi: c13657c0 edi: 00000000 ebp: 00000010 esp: c9607ddc ds: 0018 es: 0018 ss: 0018 Process cc1 (pid: 3110, stackpage=c9607000) Stack: c027a710 00000183 00000020 000001d2 00000020 00000006 c1407070 0000006e 0000043f 000001d2 c02d5928 c0130e07 00000006 00000084 00000006 000001d2 c02d5928 000001d2 000032c6 c02d5928 c0130e71 00000020 00000000 00000000 Call Trace: [<c0130e07>] [<c0130e71>] [<c013193a>] [<c0131c23>] [<c012aab2>] [<c01318c0>] [<c0126ba7>] [<c0126caf>] [<c0126ec4>] [<c0113d17>] [<c0113b88>] [<c01282ee>] [<c0127345>] [<c01071fc>] Code: 0f 0b 83 c4 08 8b 53 04 8b 03 89 50 04 89 02 a1 04 81 35 c0
>>EIP; c013092c <shrink_cache+e4/458> <===== Trace; c0130e06 <shrink_caches+5a/90> Trace; c0130e70 <try_to_free_pages+34/54> Trace; c013193a <balance_classzone+76/240> Trace; c0131c22 <__alloc_pages+11e/17c> Trace; c012aab2 <filemap_nopage+10e/23c> Trace; c01318c0 <_alloc_pages+18/1c> Trace; c0126ba6 <do_anonymous_page+3a/110> Trace; c0126cae <do_no_page+32/1ec> Trace; c0126ec4 <handle_mm_fault+5c/bc> Trace; c0113d16 <do_page_fault+18e/4e8> Trace; c0113b88 <do_page_fault+0/4e8> Trace; c01282ee <do_brk+11a/21c> Trace; c0127344 <sys_brk+c0/f0> Trace; c01071fc <error_code+34/3c> Code; c013092c <shrink_cache+e4/458> 00000000 <_EIP>: Code; c013092c <shrink_cache+e4/458> <===== 0: 0f 0b ud2a <===== Code; c013092e <shrink_cache+e6/458> 2: 83 c4 08 add $0x8,%esp Code; c0130930 <shrink_cache+e8/458> 5: 8b 53 04 mov 0x4(%ebx),%edx Code; c0130934 <shrink_cache+ec/458> 8: 8b 03 mov (%ebx),%eax Code; c0130936 <shrink_cache+ee/458> a: 89 50 04 mov %edx,0x4(%eax) Code; c0130938 <shrink_cache+f0/458> d: 89 02 mov %eax,(%edx) Code; c013093a <shrink_cache+f2/458> f: a1 04 81 35 c0 mov 0xc0358104,%eax
On Tue, Jan 08, 2002 at 10:51:24AM +0530, alad@hss.hns.com wrote: | | | | Whenever the shrink_cache wakes up after a laundered page in unlocked, it should | move that page to the end of inactive list so that | the page can be freed immediately and shrink_cache dosen't have to wait for | complete list scan before freeing this page. | | The patch is created against standard redhat 7.1 distribution 2.4.16 kernel. | Let me know if I need to create it for a different kernel release. | | regards | Amol | | | --- vmscan_orig.c Mon Jan 7 11:47:43 2002 | +++ vmscan.c Mon Jan 7 11:49:07 2002 | @@ -387,6 +387,8 @@ | wait_on_page(page); | page_cache_release(page); | spin_lock(&pagemap_lru_lock); | + list_del(&page->lru); | + list_add(&page->lru,inactive_list.prev); | } | continue; | } | | | | | - | To unsubscribe from this list: send the line "unsubscribe linux-kernel" in | the body of a message to majordomo@vger.kernel.org | More majordomo info at http://vger.kernel.org/majordomo-info.html | Please read the FAQ at http://www.tux.org/lkml/
Hughes Software Systems
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/