I need some advice on where to send a bug report. Here's what happened: I was accessing an SMB filesystem mounted "mount -t smbfs" when file accesses (things like "ls" and "cd") started producing "Segmentation fault" messages. I looked in my system log and found: Apr 16 16:58:53 pent584 kernel: kernel BUG at dcache.c:128! Apr 16 16:58:53 pent584 kernel: invalid operand: 0000 Apr 16 16:58:53 pent584 kernel: CPU: 0 Apr 16 16:58:53 pent584 kernel: EIP: 0010:[dput+43/384] Apr 16 16:58:53 pent584 kernel: EIP: 0010:[<c014592b>] Apr 16 16:58:53 pent584 kernel: EFLAGS: 00010282 Apr 16 16:58:53 pent584 kernel: eax: 0000001c ebx: c0628c40 ecx: ffffffff edx: 00000000 Apr 16 16:58:53 pent584 kernel: esi: c6dd18c0 edi: c2497bc0 ebp: c0628c40 esp: c5c89f54 Apr 16 16:58:53 pent584 kernel: ds: 0018 es: 0018 ss: 0018 Apr 16 16:58:53 pent584 kernel: Process tcsh (pid: 5018, stackpage=c5c89000) Apr 16 16:58:53 pent584 kernel: Stack: c02128db c021297b 00000080 c3404c60 00000000 00000200 c3404c60 c3404c60 Apr 16 16:58:53 pent584 kernel: c6dd18c0 c0134531 c0628c40 c3404c60 00000000 00000000 bffe8148 c0133603 Apr 16 16:58:53 pent584 kernel: c3404c60 c625fc20 00000000 c3404c60 00000000 c3404c60 08119408 c0133653 Apr 16 16:58:53 pent584 kernel: Call Trace: [error_table+42755/46744] [error_table+42915/46744] [fput+113/208] [filp_close+83/96] [sys_close+67/80] [system_call+51/56] Apr 16 16:58:53 pent584 kernel: Call Trace: [<c02128db>] [<c021297b>] [<c0134531>] [<c0133603>] [<c0133653>] [<c010901b>] Apr 16 16:58:53 pent584 kernel: Apr 16 16:58:53 pent584 kernel: Code: 0f 0b 83 c4 0c ff 0b 0f 94 c0 84 c0 0f 84 33 01 00 00 8d 43 I tried to dismount the suspect filesystem, but I couldn't -- filesystem busy, even though there were no live processes on it. Then, operations on other filesystems started failing, finally ending up with a frozen system. I power cycled, and everything is happy again. So, here's what I found in the MAINTAINERS file: SMB FILESYSTEM P: Urban Widmark M: urban@teststation.com W: http://samba.org/ L: samba@samba.org S: Maintained DEVICE FILESYSTEM P: Richard Gooch M: rgooch@atnf.csiro.au L: linux-kernel@vger.kernel.org S: Maintained BTW, I'm running RedHat 7.1. So, who do I tell? TIA, Bill Mills-Curran