Date: Wed, 5 Aug 2009 20:32:31 +0400 From: pluknet <pluknet@gmail.com> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: softdep_setup_freeblocks: kmem_malloc(4096): kmem_map too small Message-ID: <a31046fc0908050932lc3191fbl88459c39e29c08ec@mail.gmail.com> In-Reply-To: <20090805155539.GN1884@deviant.kiev.zoral.com.ua> References: <a31046fc0908042238u2a920cecmbed34f5e0c73c1cb@mail.gmail.com> <20090805155539.GN1884@deviant.kiev.zoral.com.ua>
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2009/8/5 Kostik Belousov <kostikbel@gmail.com>: > On Wed, Aug 05, 2009 at 09:38:13AM +0400, pluknet wrote: >> Hi. >> >> We have a problem with user running with exceed quota: >> >> Disk quotas for user eviluser (uid 9181): >> Filesystem usage quota limit grace files quota limit grace >> /home 6172656 6172672 6172672 14723 0 0 >> >> Some types of ufs operations running under him lead to kernel >> panic due to out of kernel memory (tested on 6.2-R, and 6.4-R): >> >> db> x/s *panicstr >> buf.1: kmem_malloc(4096): kmem_map too small: 335544320 total allocated >> >> Upping the higher level of vm.kmem_size_max doesn't help much, >> postponing that panic little farther. >> >> db> bt >> Tracing pid 7242 tid 100772 td 0xca7a57d0 >> kdb_enter(c0924e28) at kdb_enter+0x2b >> panic(c093a575,1000,14000000,c17f7818,0,...) at panic+0x127 >> kmem_malloc(c10680c0,1000,402,ef34e7bc,c07fb86d,...) at kmem_malloc+0x7d >> page_alloc(c10613c0,1000,ef34e7af,402,0,...) at page_alloc+0x1a >> slab_zalloc(c10613c0,402,c1061480,c10613c0,da68220c,...) at slab_zalloc+0xdd >> uma_zone_slab(c10613c0,502) at uma_zone_slab+0xe8 >> uma_zalloc_bucket(c10613c0,502) at uma_zalloc_bucket+0x15c >> uma_zalloc_arg(c10613c0,0,502) at uma_zalloc_arg+0x292 >> malloc(b8,c09d4ba0,502,0,0,...) at malloc+0x46 >> softdep_setup_freeblocks(cc8fb18c,0,0,800,cc8fb18c,ffffffe0,ffffffff,0,0) at sof >> tdep_setup_freeblocks+0x48 >> ffs_truncate(c89e3990,0,0,800,c94f4300,...) at ffs_truncate+0x5cb >> ffs_write(ef34ebec) at ffs_write+0x603 >> VOP_WRITE_APV(c09d5960,ef34ebec) at VOP_WRITE_APV+0xce >> vn_write(caba7000,ef34ecbc,c94f4300,0,ca7a57d0) at vn_write+0x1ee >> dofilewrite(ca7a57d0,7,caba7000,ef34ecbc,ffffffff,...) at dofilewrite+0x77 >> kern_writev(ca7a57d0,7,ef34ecbc,7e99c3c,42f6e8,...) at kern_writev+0x3b >> write(ca7a57d0,ef34ed04) at write+0x45 >> syscall(3b,82b003b,bfbf003b,8851,82bb000,...) at syscall+0x2bf >> Xint0x80_syscall() at Xint0x80_syscall+0x1f >> --- syscall (4, FreeBSD ELF32, write), eip = 0x281ae32f, esp = 0xbfbfbbdc, ebp = >> 0xbfbfbbf8 --- > > I have a high confidence that this issue should be fixed by r170991 and > by minor followup in r183067. > > r170991 was MFC'ed before 6.4, and r183067 wasn't MFC'ed to RELENG_6.. I'll try and report later. Thanks. -- wbr, pluknet
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