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.
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